fix(http): test acquire_scoped_lock's bool, not the always-truthy tuple

acquire_scoped_lock returns (acquired, existing_record); the old
'if not acquire_scoped_lock(...)' tested the tuple, which is always
truthy, so the 'port in use by another profile' pre-check never fired
and a conflict surfaced as a generic bind failure. Unpack and test the
first element, matching gateway/platforms/base.py's canonical usage.

Bump VERSION / plugin.yaml to 0.1.3.

.gitea/workflows/ci.yml

@@ -29,13 +29,15 @@ jobs:
                           run: |
                                   echo "$HOME/.local/bin" >> "$GITHUB_PATH"
                                   cd hermes-agent
-          uv sync
+                                  # pytest lives in the `dev` extra — a plain `uv sync` leaves the
+                                  # venv without it and run_tests.sh refuses to run.
+                                  uv sync --extra dev
 
                         - name: Run android gateway tests
                           run: |
-          cp gateway-plugin/tests/test_android.py hermes-agent/tests/gateway/test_android.py
+                                  cp tests/test_android.py hermes-agent/tests/gateway/test_android.py
                                   cd hermes-agent
-          ANDROID_PLUGIN_DIR="$GITHUB_WORKSPACE/gateway-plugin" \
+                                  IRIS_PLUGIN_DIR="$GITHUB_WORKSPACE/gateway-plugin" \
                                     scripts/run_tests.sh tests/gateway/test_android.py
 
         kotlin:
@@ -62,7 +64,11 @@ jobs:
                                     https://dl.google.com/android/repository/commandlinetools-linux-11076708_latest.zip
                                   unzip -q /tmp/ct.zip -d "$ANDROID_HOME/cmdline-tools"
                                   mv "$ANDROID_HOME/cmdline-tools/cmdline-tools" "$ANDROID_HOME/cmdline-tools/latest"
-          yes | "$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager" --licenses > /dev/null
+                                  # Finite input from a file: `yes | sdkmanager` dies with SIGPIPE
+                                  # (exit 141) under Gitea's `bash -e -o pipefail` once sdkmanager
+                                  # exits before `yes` is done writing.
+                                  for i in $(seq 100); do echo y; done > /tmp/sdk_licenses_yes.txt
+                                  "$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager" --licenses < /tmp/sdk_licenses_yes.txt > /dev/null
                                   echo "ANDROID_HOME=$ANDROID_HOME" >> "$GITHUB_ENV"
                                   echo "sdk.dir=$ANDROID_HOME" > app/local.properties
 

.gitea/workflows/release.yml

@@ -3,12 +3,10 @@ name: Release
 on:
   workflow_dispatch:
     inputs:
-      version:
-        description: "Release version (e.g. 0.2.0)"
-        required: true
-        type: string
+      # The release version comes from the repo-root VERSION file (the single
+      # source of truth) — bump it in a commit, then dispatch this workflow.
       changelog:
-        description: "Release notes (markdown, shown on the release page)"
+        description: "Release notes (markdown, shown on the release page). Single-line field — use literal \\n for line breaks."
         required: false
         type: string
 
@@ -32,13 +30,15 @@ jobs:
         run: |
           echo "$HOME/.local/bin" >> "$GITHUB_PATH"
           cd hermes-agent
-          uv sync
+          # pytest lives in the `dev` extra — a plain `uv sync` leaves the
+          # venv without it and run_tests.sh refuses to run.
+          uv sync --extra dev
 
       - name: Run android gateway tests
         run: |
-          cp gateway-plugin/tests/test_android.py hermes-agent/tests/gateway/test_android.py
+          cp tests/test_android.py hermes-agent/tests/gateway/test_android.py
           cd hermes-agent
-          ANDROID_PLUGIN_DIR="$GITHUB_WORKSPACE/gateway-plugin" \
+          IRIS_PLUGIN_DIR="$GITHUB_WORKSPACE/gateway-plugin" \
             scripts/run_tests.sh tests/gateway/test_android.py
 
   kotlin:
@@ -63,7 +63,11 @@ jobs:
             https://dl.google.com/android/repository/commandlinetools-linux-11076708_latest.zip
           unzip -q /tmp/ct.zip -d "$ANDROID_HOME/cmdline-tools"
           mv "$ANDROID_HOME/cmdline-tools/cmdline-tools" "$ANDROID_HOME/cmdline-tools/latest"
-          yes | "$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager" --licenses > /dev/null
+          # Finite input from a file: `yes | sdkmanager` dies with SIGPIPE
+          # (exit 141) under Gitea's `bash -e -o pipefail` once sdkmanager
+          # exits before `yes` is done writing.
+          for i in $(seq 100); do echo y; done > /tmp/sdk_licenses_yes.txt
+          "$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager" --licenses < /tmp/sdk_licenses_yes.txt > /dev/null
           echo "ANDROID_HOME=$ANDROID_HOME" >> "$GITHUB_ENV"
           echo "sdk.dir=$ANDROID_HOME" > app/local.properties
 
@@ -71,8 +75,11 @@ jobs:
         working-directory: app
         run: ./gradlew :shared:testAndroidHostTest :shared:desktopTest
 
-  android:
-    name: Build Android APK
+  # Gitea/act_runner does not implement the GitHub artifacts API
+  # (upload-artifact@v4+ fails with GHESNotSupportedError), so the builds and
+  # the release creation happen in ONE job — no artifact handoff between jobs.
+  release:
+    name: Build + create Gitea release
     runs-on: ubuntu-latest
     needs: [gateway, kotlin]
     steps:
@@ -94,10 +101,19 @@ jobs:
             https://dl.google.com/android/repository/commandlinetools-linux-11076708_latest.zip
           unzip -q /tmp/ct.zip -d "$ANDROID_HOME/cmdline-tools"
           mv "$ANDROID_HOME/cmdline-tools/cmdline-tools" "$ANDROID_HOME/cmdline-tools/latest"
-          yes | "$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager" --licenses > /dev/null
+          # Finite input from a file: `yes | sdkmanager` dies with SIGPIPE
+          # (exit 141) under Gitea's `bash -e -o pipefail` once sdkmanager
+          # exits before `yes` is done writing.
+          for i in $(seq 100); do echo y; done > /tmp/sdk_licenses_yes.txt
+          "$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager" --licenses < /tmp/sdk_licenses_yes.txt > /dev/null
           echo "ANDROID_HOME=$ANDROID_HOME" >> "$GITHUB_ENV"
           echo "sdk.dir=$ANDROID_HOME" > app/local.properties
 
+      # jpackage --type deb shells out to fakeroot, which the runner image
+      # does not ship.
+      - name: Install fakeroot (for jpackage --type deb)
+        run: sudo apt-get update -qq && sudo apt-get install -y -qq fakeroot
+
       - name: Restore release keystore (from Gitea secrets)
         env:
           KS_B64: ${{ secrets.ANDROID_KEYSTORE_BASE64 }}
@@ -113,73 +129,43 @@ jobs:
             echo "::warning::ANDROID_KEYSTORE_BASE64 secret not set — falling back to a DEBUG apk (see CI-SETUP.md §5)"
           fi
 
-      - name: Build APK
+      - name: Build APK + AAB
         run: |
-          VERSION=$(jq -r '.inputs.version' "$GITHUB_EVENT_PATH")
+          VERSION=$(cat "$GITHUB_WORKSPACE/VERSION")
+          [ -n "$VERSION" ] || { echo "::error::VERSION file is missing or empty"; exit 1; }
           cd app
           if [ -n "$ANDROID_KEYSTORE_FILE" ]; then
-            ./gradlew :androidApp:assembleRelease -PappVersion="$VERSION"
+            # APK for direct sideloading, AAB for Play Store uploads.
+            ./gradlew :androidApp:assembleRelease :androidApp:bundleRelease -PappVersion="$VERSION"
             cp androidApp/build/outputs/apk/release/androidApp-release.apk \
               "$GITHUB_WORKSPACE/iris-android-v$VERSION.apk"
+            cp androidApp/build/outputs/bundle/release/androidApp-release.aab \
+              "$GITHUB_WORKSPACE/iris-android-v$VERSION.aab"
           else
-            ./gradlew :androidApp:assembleDebug -PappVersion="$VERSION"
+            ./gradlew :androidApp:assembleDebug :androidApp:bundleDebug -PappVersion="$VERSION"
             cp androidApp/build/outputs/apk/debug/androidApp-debug.apk \
               "$GITHUB_WORKSPACE/iris-android-v$VERSION-debug.apk"
+            cp androidApp/build/outputs/bundle/debug/androidApp-debug.aab \
+              "$GITHUB_WORKSPACE/iris-android-v$VERSION-debug.aab"
           fi
 
-      - uses: actions/upload-artifact@v4
-        with:
-          name: android
-          path: iris-android-*.apk
-
-  desktop:
-    name: Build desktop (Linux, jpackage)
-    runs-on: ubuntu-latest
-    needs: [gateway, kotlin]
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/setup-java@v4
-        with:
-          distribution: temurin
-          java-version: "21"
-
-      - name: Strip local JDK pin
-        run: sed -i '/^org\.gradle\.java\.home/d' app/gradle.properties
-
-      # jpackage cannot cross-compile: this job only produces Linux packages.
-      # When a Windows / macOS runner exists later, copy this job, change
-      # runs-on, and drop the -x64-linux suffix (jpackage picks the native
-      # type: msi on Windows, dmg on macOS).
-      - name: Build app-image + deb
+      # jpackage cannot cross-compile: this only produces Linux packages.
+      # When a Windows / macOS runner exists later, add a second build job
+      # for it (jpackage picks the native type: msi on Windows, dmg on macOS).
+      - name: Build desktop app-image + deb
         run: |
-          VERSION=$(jq -r '.inputs.version' "$GITHUB_EVENT_PATH")
+          VERSION=$(cat "$GITHUB_WORKSPACE/VERSION")
+          [ -n "$VERSION" ] || { echo "::error::VERSION file is missing or empty"; exit 1; }
           cd app
           # Self-contained app image (JRE bundled via jlink).
           ./gradlew :desktopApp:jpackage -PappVersion="$VERSION"
           (cd desktopApp/build/jpackage && zip -qr \
             "$GITHUB_WORKSPACE/iris-desktop-linux-x64-v$VERSION.zip" iris)
-          # .deb package (dpkg-deb ships with Ubuntu).
+          # .deb package (dpkg-deb ships with Ubuntu; fakeroot installed above).
           ./gradlew :desktopApp:jpackage -PjpackageType=deb -PappVersion="$VERSION"
           cp desktopApp/build/jpackage/*.deb \
             "$GITHUB_WORKSPACE/iris-desktop-linux-x64-v$VERSION.deb"
 
-      - uses: actions/upload-artifact@v4
-        with:
-          name: desktop
-          path: |
-            iris-desktop-linux-x64-*.zip
-            iris-desktop-linux-x64-*.deb
-
-  release:
-    name: Create Gitea release
-    runs-on: ubuntu-latest
-    needs: [android, desktop]
-    steps:
-      - uses: actions/download-artifact@v4
-        with:
-          path: artifacts
-
       - name: Create release + upload artifacts
         env:
           # Optional: create a personal access token (scope: Releases: write)
@@ -191,30 +177,50 @@ jobs:
           SERVER="${GITEA_SERVER_URL:-$GITHUB_SERVER_URL}"
           REPO="${GITEA_REPOSITORY:-$GITHUB_REPOSITORY}"
           TOKEN="${RELEASE_TOKEN:-$GITHUB_TOKEN}"
-          VERSION=$(jq -r '.inputs.version' "$GITHUB_EVENT_PATH")
-          CHANGELOG=$(jq -r '.inputs.changelog // ""' "$GITHUB_EVENT_PATH")
+          VERSION=$(cat "$GITHUB_WORKSPACE/VERSION")
+          # The dispatch input is a single-line field; turn literal \n into real newlines.
+          CHANGELOG=$(jq -r '.inputs.changelog // ""' "$GITHUB_EVENT_PATH" | sed 's/\\n/\n/g')
           TAG="v$VERSION"
           API="$SERVER/api/v1/repos/$REPO"
           AUTH="Authorization: token $TOKEN"
 
-          # Re-run safety: drop a previous release (and its tag) for this version.
-          OLD_ID=$(curl -sf -H "$AUTH" "$API/releases/tags/$TAG" | jq -r '.id // empty')
-          if [ -n "$OLD_ID" ]; then
-            curl -sf -X DELETE -H "$AUTH" "$API/releases/$OLD_ID" > /dev/null
+          # curl wrapper: on HTTP >= 400, print the response body (Gitea's error
+          # message) before failing — plain `curl -f` hides it (exit 22).
+          api() {
+            local code body
+            body=$(mktemp)
+            code=$(curl -s -o "$body" -w '%{http_code}' "$@") || { cat "$body"; rm -f "$body"; return 1; }
+            if [ "${code:0:1}" != "2" ]; then
+              echo "API error $code: $(cat "$body")" >&2
+              rm -f "$body"
+              return 1
             fi
+            cat "$body"
+            rm -f "$body"
+          }
+
+          # Re-run safety: drop a previous release AND its tag for this version.
+          # (Gitea's DELETE /releases/:id does NOT remove the tag; a leftover tag
+          # makes the POST below fail with 409.)
+          OLD_ID=$(api -H "$AUTH" "$API/releases/tags/$TAG" | jq -r '.id // empty') || true
+          if [ -n "$OLD_ID" ]; then
+            api -X DELETE -H "$AUTH" "$API/releases/$OLD_ID" > /dev/null
+          fi
+          api -X DELETE -H "$AUTH" "$API/tags/$TAG" > /dev/null || true
 
           # Gitea creates the tag at the default branch HEAD automatically.
-          RELEASE_ID=$(curl -sf -X POST -H "$AUTH" -H "Content-Type: application/json" \
+          RELEASE_ID=$(api -X POST -H "$AUTH" -H "Content-Type: application/json" \
             "$API/releases" \
             -d "$(jq -n --arg tag "$TAG" --arg title "Iris $VERSION" --arg body "$CHANGELOG" \
                  '{tag_name:$tag, title:$title, body:$body}')" \
             | jq -r .id)
           echo "Created release $TAG (id $RELEASE_ID)"
 
-          for f in artifacts/*/*; do
+          for f in "$GITHUB_WORKSPACE"/iris-android-v* "$GITHUB_WORKSPACE"/iris-desktop-*; do
             [ -f "$f" ] || continue
             echo "Uploading $(basename "$f")"
-            curl -sf -X POST -H "$AUTH" -F "attachment=@$f" \
-              "$API/releases/$RELEASE_ID/attachments" > /dev/null
+            # Forgejo-style API: release assets live under /assets, not /attachments.
+            api -X POST -H "$AUTH" -F "attachment=@$f" \
+              "$API/releases/$RELEASE_ID/assets" > /dev/null
           done
           echo "Done: $SERVER/$REPO/releases/tag/$TAG"

.pi-lens.json

@@ -1,6 +1,6 @@
 {
   "ignore": [
-    "gateway-plugin/tests/test_android.py"
+    "tests/test_android.py"
   ],
   "rules": {
     "unchecked-throwing-call-python": {

.pre-commit-config.yaml

@@ -13,3 +13,9 @@ repos:
         language: system
         pass_filenames: false
         always_run: true
+      - id: check-version-sync
+        name: check gateway-plugin/plugin.yaml version == repo-root VERSION
+        entry: scripts/check_version_sync.sh
+        language: system
+        pass_filenames: false
+        always_run: true

AGENTS.md

@@ -3,37 +3,43 @@
 ## Hard rules
 
 - `hermes-agent/` is a **read-only research reference** (git-ignored). Never commit, push, or modify it — a pre-commit hook (`scripts/guard_hermes_agent.sh --staged`) fails any commit that stages it. Never modify hermes core; we only install our plugin into the live hermes home.
-- The plugin is installed by symlink: `~/.hermes/plugins/android` → `<repo>/gateway-plugin` (already set up on this machine).
+- A second pre-commit hook (`scripts/check_version_sync.sh`) fails any commit where the `gateway-plugin/plugin.yaml` version ≠ the repo-root `VERSION` file — keep them in sync.
+- **Commit/push scope:** when asked to "commit and push all changes," that means **all** changes in the working tree — it does NOT matter whether a change was made this session or earlier. Stage everything (`git add .`) and commit; do not cherry-pick or second-guess which files are "yours." The only exception is `hermes-agent/` (git-ignored, never staged).
+- The plugin is installed by symlink: `~/.hermes/plugins/iris` → `<repo>/gateway-plugin` (already set up on this machine).
 
 ## Layout
 
 - `gateway-plugin/` — Python hermes platform plugin (`android`). No build step, zero new deps (stdlib + hermes-provided `websockets`/`httpx`). `protocol.py` is the frame source of truth, mirrored in `app/shared/.../protocol/Protocol.kt` and `docs/protocol/frames.schema.json`.
 - `app/` — one Compose Multiplatform Gradle project: `:shared` (KMP, most of the code; `jvmMain` is shared by the android and desktop targets since both are JVM-based), `:androidApp` (thin shell, package `dev.iris.app`), `:desktopApp` (thin shell).
 - `docs/` — numbered reference library; read `docs/00-overview.md` first. Locked decisions: `docs/16-open-questions.md`.
+- `tests/` — committed Python test suite: `test_android.py` (plugin tests; a copy of the hermes-agent mirror described below), `test_android_http.py` (HTTP fallback transport, see `docs/19-http-fallback-transport.md`), `ws_probe.py`, `e2e.py`, `README.md`.
+- `scripts/` — pre-commit guards (`guard_hermes_agent.sh`, `check_version_sync.sh`) and `make_release_keystore.sh`.
+- `backdrops/` — backdrop/wallpaper images (Pexels) used by the app theme.
+- `CI-SETUP.md` — Gitea CI/release setup reference.
 
 ## Commands
 
 - `hermes` is **not on PATH**: use `hermes-agent/.venv/bin/hermes` (venv from `cd hermes-agent && uv sync`).
-- Gateway: `hermes gateway setup` (one-time; generates `ANDROID_TOKEN` in `~/.hermes/.env`, prints the token only once) → `hermes gateway` (run) → `hermes gateway status`.
-- Android: check the device is connected first (`adb devices` → `a5ca2a4b` listed as `device`); then `cd app && ./gradlew :androidApp:installDebug` to install on the phone and live-verify changes (launch/screenshot: see ADB below).
+- Gateway: `hermes gateway setup` (one-time; generates `IRIS_TOKEN` in `~/.hermes/.env`, prints the token only once) → `hermes gateway` (run) → `hermes gateway status`.
+- Android: check the device is connected first (`adb devices` → your device's serial listed as `device`; the serial differs per developer/machine); then `cd app && ./gradlew :androidApp:installDebug` to install on the phone and live-verify changes (launch/screenshot: see ADB below).
 - Desktop: `cd app && ./gradlew :desktopApp:run`; packaging: `:desktopApp:jpackage` (app-image; `-PjpackageType=deb` for a .deb).
 - Python tests — **never bare `pytest`**: `cd hermes-agent && scripts/run_tests.sh tests/gateway/test_android.py` (no args = full suite).
 - Kotlin tests: `cd app && ./gradlew :shared:testAndroidHostTest` / `:shared:desktopTest` (host-side; `jvmTest` is the shared source set).
-- WS probe (gateway must be running): `hermes-agent/.venv/bin/python gateway-plugin/tests/ws_probe.py --token <ANDROID_TOKEN> --send "hello"` — assertion flags documented in `gateway-plugin/tests/README.md`.
-- E2E driver (gateway must be running; it never starts/stops it): `hermes-agent/.venv/bin/python gateway-plugin/tests/e2e.py`.
+- WS probe (gateway must be running): `hermes-agent/.venv/bin/python tests/ws_probe.py --token <IRIS_TOKEN> --send "hello"` — assertion flags documented in `tests/README.md`.
+- E2E driver (gateway must be running; it never starts/stops it): `hermes-agent/.venv/bin/python tests/e2e.py`.
 
 ## Environment / pairing quirks
 
-- Pairing token: `ANDROID_TOKEN` in `~/.hermes/.env`. The app has **no QR scanner** — pairing is manual URL + token entry.
-- WS default bind is `127.0.0.1`; for a phone on the LAN set `ANDROID_WS_HOST` to the gateway's LAN IP.
+- Pairing token: `IRIS_TOKEN` in `~/.hermes/.env`. Pairing is manual URL + token entry; on **Android** there's also a QR-scan button (camera) that fills URL + token from the gateway's pairing QR. Desktop has no camera, so it's manual entry only.
+- HTTP default bind is `127.0.0.1`; for a phone on the LAN set `IRIS_HTTP_HOST` to the gateway's LAN IP.
 - `app/local.properties` (`sdk.dir`) is git-ignored and required for Android builds.
 - `google-services.json` is optional: without it FCM is inert and ntfy is the push path. Public ntfy.sh SSE is flaky — self-host ntfy.
-- JDK 17; no system Gradle — always the wrapper (`./gradlew`).
-- Desktop jpackage on Linux/JDK 17 prints a non-fatal `pure virtual method called` (JDK-8348560); the app works.
+- **JDK 21** is required (the desktop Markdown renderer ships Java-21 bytecode); no system Gradle — always the wrapper (`./gradlew`). The JDK-21 home is machine-specific and set per machine (NOT committed): add `org.gradle.java.home=/path/to/jdk21` to `~/.gradle/gradle.properties`, or `export JAVA_HOME=/path/to/jdk21` before running `./gradlew`.
+- Desktop jpackage on Linux/JDK 21 prints a non-fatal `pure virtual method called` (JDK-8348560); the app works.
 
 ## Testing quirks
 
-- `hermes-agent/tests/gateway/test_android.py` is a thin mirror that imports the **live `gateway-plugin/` package from this repo** (override with `ANDROID_PLUGIN_DIR`); HERMES_HOME is sandboxed per-test by the conftest. Tests must never touch the real `~/.hermes`.
+- `hermes-agent/tests/gateway/test_android.py` is a thin mirror that imports the **live `gateway-plugin/` package from this repo** (override with `IRIS_PLUGIN_DIR`); the committed `tests/test_android.py` is a copy of it, and `tests/test_android_http.py` covers the HTTP fallback transport. HERMES_HOME is sandboxed per-test by the conftest. Tests must never touch the real `~/.hermes`.
 - e2e scenarios 3 (reasoning) and 5 (commentary) are model-dependent → SKIP; 11 (push) and 12 (reconnect) are PARTIAL by design.
 - ADB: launch `adb shell am start -n dev.iris.app/.MainActivity`; reset pairing state `adb shell pm clear dev.iris.app`; screenshot `adb exec-out screencap -p > /tmp/shot.png`.
 - ADB UI taps: **never guess tap coordinates from a screenshot** — dump the hierarchy and tap the element's real bounds: `adb shell uiautomator dump` → `adb pull /sdcard/window_dump.xml` → find the node by `text` / `content-desc` / `resource-id` → `adb shell input tap` at the center of its `bounds="[x1,y1][x2,y2]"`. Re-dump after every navigation; if a tap misses, the dump is stale — re-dump, don't nudge coordinates.

CI-SETUP.md

@@ -7,10 +7,10 @@ Everything needed for the Gitea workflows (CI + manual release). Items marked
 
 ## 1. DONE — no action needed
 
-- `gateway-plugin/tests/test_android.py` — vendored byte-identical mirror of
+- `tests/test_android.py` — vendored byte-identical mirror of
   `hermes-agent/tests/gateway/test_android.py` (the git-ignored hermes checkout
   is the canonical copy; **keep the two in sync** when you change that test).
-- `.pi-lens.json` — added `"ignore": ["gateway-plugin/tests/test_android.py"]`
+- `.pi-lens.json` — added `"ignore": ["tests/test_android.py"]`
   so the scanner doesn't flag the vendored mirror.
 
 ---
@@ -56,9 +56,9 @@ jobs:
 
       - name: Run android gateway tests
         run: |
-          cp gateway-plugin/tests/test_android.py hermes-agent/tests/gateway/test_android.py
+          cp tests/test_android.py hermes-agent/tests/gateway/test_android.py
           cd hermes-agent
-          ANDROID_PLUGIN_DIR="$GITHUB_WORKSPACE/gateway-plugin" \
+          IRIS_PLUGIN_DIR="$GITHUB_WORKSPACE/gateway-plugin" \
             scripts/run_tests.sh tests/gateway/test_android.py
 
   kotlin:
@@ -100,11 +100,17 @@ jobs:
 
 ## 3. NEW FILE: `.gitea/workflows/release.yml`
 
-Manual trigger: **repo → Actions → Release → Run workflow**, enter a
-`version` (e.g. `0.2.0`) and a `changelog`. It runs the same tests as CI,
-builds a signed Android APK + the Linux desktop packages (jpackage, JRE
-bundled), then creates the Gitea release `v<version>` with all artifacts as
-download attachments.
+The release version is the repo-root **`VERSION` file** (single source of
+truth — "everything from here on out is vX.Y.Z" = bump `VERSION` and
+commit). Manual trigger: **repo → Actions → Release → Run workflow**,
+optionally with a `changelog`. It runs the same tests as CI, builds a signed
+Android APK + AAB and the Linux desktop packages (jpackage, JRE bundled),
+then creates the Gitea release `v<VERSION>` with all artifacts as download
+attachments.
+
+Note: builds + release creation happen in ONE job because Gitea/act_runner
+does not implement the GitHub artifacts API (`upload-artifact@v4+` fails
+with `GHESNotSupportedError`).
 
 ```yaml
 name: Release
@@ -112,12 +118,10 @@ name: Release
 on:
   workflow_dispatch:
     inputs:
-      version:
-        description: "Release version (e.g. 0.2.0)"
-        required: true
-        type: string
+      # The release version comes from the repo-root VERSION file (the single
+      # source of truth) — bump it in a commit, then dispatch this workflow.
       changelog:
-        description: "Release notes (markdown, shown on the release page)"
+        description: "Release notes (markdown, shown on the release page). Single-line field — use literal \\n for line breaks."
         required: false
         type: string
 
@@ -141,13 +145,15 @@ jobs:
         run: |
           echo "$HOME/.local/bin" >> "$GITHUB_PATH"
           cd hermes-agent
-          uv sync
+          # pytest lives in the `dev` extra — a plain `uv sync` leaves the
+          # venv without it and run_tests.sh refuses to run.
+          uv sync --extra dev
 
       - name: Run android gateway tests
         run: |
-          cp gateway-plugin/tests/test_android.py hermes-agent/tests/gateway/test_android.py
+          cp tests/test_android.py hermes-agent/tests/gateway/test_android.py
           cd hermes-agent
-          ANDROID_PLUGIN_DIR="$GITHUB_WORKSPACE/gateway-plugin" \
+          IRIS_PLUGIN_DIR="$GITHUB_WORKSPACE/gateway-plugin" \
             scripts/run_tests.sh tests/gateway/test_android.py
 
   kotlin:
@@ -172,7 +178,11 @@ jobs:
             https://dl.google.com/android/repository/commandlinetools-linux-11076708_latest.zip
           unzip -q /tmp/ct.zip -d "$ANDROID_HOME/cmdline-tools"
           mv "$ANDROID_HOME/cmdline-tools/cmdline-tools" "$ANDROID_HOME/cmdline-tools/latest"
-          yes | "$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager" --licenses > /dev/null
+          # Finite input from a file: `yes | sdkmanager` dies with SIGPIPE
+          # (exit 141) under Gitea's `bash -e -o pipefail` once sdkmanager
+          # exits before `yes` is done writing.
+          for i in $(seq 100); do echo y; done > /tmp/sdk_licenses_yes.txt
+          "$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager" --licenses < /tmp/sdk_licenses_yes.txt > /dev/null
           echo "ANDROID_HOME=$ANDROID_HOME" >> "$GITHUB_ENV"
           echo "sdk.dir=$ANDROID_HOME" > app/local.properties
 
@@ -180,8 +190,11 @@ jobs:
         working-directory: app
         run: ./gradlew :shared:testAndroidHostTest :shared:desktopTest
 
-  android:
-    name: Build Android APK
+  # Gitea/act_runner does not implement the GitHub artifacts API
+  # (upload-artifact@v4+ fails with GHESNotSupportedError), so the builds and
+  # the release creation happen in ONE job — no artifact handoff between jobs.
+  release:
+    name: Build + create Gitea release
     runs-on: ubuntu-latest
     needs: [gateway, kotlin]
     steps:
@@ -203,10 +216,19 @@ jobs:
             https://dl.google.com/android/repository/commandlinetools-linux-11076708_latest.zip
           unzip -q /tmp/ct.zip -d "$ANDROID_HOME/cmdline-tools"
           mv "$ANDROID_HOME/cmdline-tools/cmdline-tools" "$ANDROID_HOME/cmdline-tools/latest"
-          yes | "$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager" --licenses > /dev/null
+          # Finite input from a file: `yes | sdkmanager` dies with SIGPIPE
+          # (exit 141) under Gitea's `bash -e -o pipefail` once sdkmanager
+          # exits before `yes` is done writing.
+          for i in $(seq 100); do echo y; done > /tmp/sdk_licenses_yes.txt
+          "$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager" --licenses < /tmp/sdk_licenses_yes.txt > /dev/null
           echo "ANDROID_HOME=$ANDROID_HOME" >> "$GITHUB_ENV"
           echo "sdk.dir=$ANDROID_HOME" > app/local.properties
 
+      # jpackage --type deb shells out to fakeroot, which the runner image
+      # does not ship.
+      - name: Install fakeroot (for jpackage --type deb)
+        run: sudo apt-get update -qq && sudo apt-get install -y -qq fakeroot
+
       - name: Restore release keystore (from Gitea secrets)
         env:
           KS_B64: ${{ secrets.ANDROID_KEYSTORE_BASE64 }}
@@ -222,73 +244,43 @@ jobs:
             echo "::warning::ANDROID_KEYSTORE_BASE64 secret not set — falling back to a DEBUG apk (see CI-SETUP.md §5)"
           fi
 
-      - name: Build APK
+      - name: Build APK + AAB
         run: |
-          VERSION=$(jq -r '.inputs.version' "$GITHUB_EVENT_PATH")
+          VERSION=$(cat "$GITHUB_WORKSPACE/VERSION")
+          [ -n "$VERSION" ] || { echo "::error::VERSION file is missing or empty"; exit 1; }
           cd app
           if [ -n "$ANDROID_KEYSTORE_FILE" ]; then
-            ./gradlew :androidApp:assembleRelease -PappVersion="$VERSION"
+            # APK for direct sideloading, AAB for Play Store uploads.
+            ./gradlew :androidApp:assembleRelease :androidApp:bundleRelease -PappVersion="$VERSION"
             cp androidApp/build/outputs/apk/release/androidApp-release.apk \
               "$GITHUB_WORKSPACE/iris-android-v$VERSION.apk"
+            cp androidApp/build/outputs/bundle/release/androidApp-release.aab \
+              "$GITHUB_WORKSPACE/iris-android-v$VERSION.aab"
           else
-            ./gradlew :androidApp:assembleDebug -PappVersion="$VERSION"
+            ./gradlew :androidApp:assembleDebug :androidApp:bundleDebug -PappVersion="$VERSION"
             cp androidApp/build/outputs/apk/debug/androidApp-debug.apk \
               "$GITHUB_WORKSPACE/iris-android-v$VERSION-debug.apk"
+            cp androidApp/build/outputs/bundle/debug/androidApp-debug.aab \
+              "$GITHUB_WORKSPACE/iris-android-v$VERSION-debug.aab"
           fi
 
-      - uses: actions/upload-artifact@v4
-        with:
-          name: android
-          path: iris-android-*.apk
-
-  desktop:
-    name: Build desktop (Linux, jpackage)
-    runs-on: ubuntu-latest
-    needs: [gateway, kotlin]
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/setup-java@v4
-        with:
-          distribution: temurin
-          java-version: "21"
-
-      - name: Strip local JDK pin
-        run: sed -i '/^org\.gradle\.java\.home/d' app/gradle.properties
-
-      # jpackage cannot cross-compile: this job only produces Linux packages.
-      # When a Windows / macOS runner exists later, copy this job, change
-      # runs-on, and drop the -x64-linux suffix (jpackage picks the native
-      # type: msi on Windows, dmg on macOS).
-      - name: Build app-image + deb
+      # jpackage cannot cross-compile: this only produces Linux packages.
+      # When a Windows / macOS runner exists later, add a second build job
+      # for it (jpackage picks the native type: msi on Windows, dmg on macOS).
+      - name: Build desktop app-image + deb
         run: |
-          VERSION=$(jq -r '.inputs.version' "$GITHUB_EVENT_PATH")
+          VERSION=$(cat "$GITHUB_WORKSPACE/VERSION")
+          [ -n "$VERSION" ] || { echo "::error::VERSION file is missing or empty"; exit 1; }
           cd app
           # Self-contained app image (JRE bundled via jlink).
           ./gradlew :desktopApp:jpackage -PappVersion="$VERSION"
           (cd desktopApp/build/jpackage && zip -qr \
             "$GITHUB_WORKSPACE/iris-desktop-linux-x64-v$VERSION.zip" iris)
-          # .deb package (dpkg-deb ships with Ubuntu).
+          # .deb package (dpkg-deb ships with Ubuntu; fakeroot installed above).
           ./gradlew :desktopApp:jpackage -PjpackageType=deb -PappVersion="$VERSION"
           cp desktopApp/build/jpackage/*.deb \
             "$GITHUB_WORKSPACE/iris-desktop-linux-x64-v$VERSION.deb"
 
-      - uses: actions/upload-artifact@v4
-        with:
-          name: desktop
-          path: |
-            iris-desktop-linux-x64-*.zip
-            iris-desktop-linux-x64-*.deb
-
-  release:
-    name: Create Gitea release
-    runs-on: ubuntu-latest
-    needs: [android, desktop]
-    steps:
-      - uses: actions/download-artifact@v4
-        with:
-          path: artifacts
-
       - name: Create release + upload artifacts
         env:
           # Optional: create a personal access token (scope: Releases: write)
@@ -300,31 +292,51 @@ jobs:
           SERVER="${GITEA_SERVER_URL:-$GITHUB_SERVER_URL}"
           REPO="${GITEA_REPOSITORY:-$GITHUB_REPOSITORY}"
           TOKEN="${RELEASE_TOKEN:-$GITHUB_TOKEN}"
-          VERSION=$(jq -r '.inputs.version' "$GITHUB_EVENT_PATH")
-          CHANGELOG=$(jq -r '.inputs.changelog // ""' "$GITHUB_EVENT_PATH")
+          VERSION=$(cat "$GITHUB_WORKSPACE/VERSION")
+          # The dispatch input is a single-line field; turn literal \n into real newlines.
+          CHANGELOG=$(jq -r '.inputs.changelog // ""' "$GITHUB_EVENT_PATH" | sed 's/\\n/\n/g')
           TAG="v$VERSION"
           API="$SERVER/api/v1/repos/$REPO"
           AUTH="Authorization: token $TOKEN"
 
-          # Re-run safety: drop a previous release (and its tag) for this version.
-          OLD_ID=$(curl -sf -H "$AUTH" "$API/releases/tags/$TAG" | jq -r '.id // empty')
-          if [ -n "$OLD_ID" ]; then
-            curl -sf -X DELETE -H "$AUTH" "$API/releases/$OLD_ID" > /dev/null
+          # curl wrapper: on HTTP >= 400, print the response body (Gitea's error
+          # message) before failing — plain `curl -f` hides it (exit 22).
+          api() {
+            local code body
+            body=$(mktemp)
+            code=$(curl -s -o "$body" -w '%{http_code}' "$@") || { cat "$body"; rm -f "$body"; return 1; }
+            if [ "${code:0:1}" != "2" ]; then
+              echo "API error $code: $(cat "$body")" >&2
+              rm -f "$body"
+              return 1
             fi
+            cat "$body"
+            rm -f "$body"
+          }
+
+          # Re-run safety: drop a previous release AND its tag for this version.
+          # (Gitea's DELETE /releases/:id does NOT remove the tag; a leftover tag
+          # makes the POST below fail with 409.)
+          OLD_ID=$(api -H "$AUTH" "$API/releases/tags/$TAG" | jq -r '.id // empty') || true
+          if [ -n "$OLD_ID" ]; then
+            api -X DELETE -H "$AUTH" "$API/releases/$OLD_ID" > /dev/null
+          fi
+          api -X DELETE -H "$AUTH" "$API/tags/$TAG" > /dev/null || true
 
           # Gitea creates the tag at the default branch HEAD automatically.
-          RELEASE_ID=$(curl -sf -X POST -H "$AUTH" -H "Content-Type: application/json" \
+          RELEASE_ID=$(api -X POST -H "$AUTH" -H "Content-Type: application/json" \
             "$API/releases" \
             -d "$(jq -n --arg tag "$TAG" --arg title "Iris $VERSION" --arg body "$CHANGELOG" \
                  '{tag_name:$tag, title:$title, body:$body}')" \
             | jq -r .id)
           echo "Created release $TAG (id $RELEASE_ID)"
 
-          for f in artifacts/*/*; do
+          for f in "$GITHUB_WORKSPACE"/iris-android-v* "$GITHUB_WORKSPACE"/iris-desktop-*; do
             [ -f "$f" ] || continue
             echo "Uploading $(basename "$f")"
-            curl -sf -X POST -H "$AUTH" -F "attachment=@$f" \
-              "$API/releases/$RELEASE_ID/attachments" > /dev/null
+            # Forgejo-style API: release assets live under /assets, not /attachments.
+            api -X POST -H "$AUTH" -F "attachment=@$f" \
+              "$API/releases/$RELEASE_ID/assets" > /dev/null
           done
           echo "Done: $SERVER/$REPO/releases/tag/$TAG"
 ```
@@ -333,6 +345,11 @@ jobs:
 
 ## 4. EDITS to existing Gradle files
 
+> **Note (versioning):** the `versionName` / `appVersion` lines shown below
+> have since been changed to read the repo-root **`VERSION` file** (single
+> source of truth; `-PappVersion` still overrides in CI). See
+> `.gitea/workflows/release.yml` and `gateway-plugin/version.py`.
+
 ### 4a. `app/androidApp/build.gradle.kts`
 
 **Change 1** — in `defaultConfig`, replace:

README.md

@@ -2,14 +2,21 @@
 
 A chat app for [hermes-agent](https://github.com/NousResearch/hermes-agent): a **native Android app** and a **desktop app** (Linux, macOS, Windows) — both built from one shared Kotlin codebase (Compose Multiplatform).
 
-Iris pairs with your running `hermes gateway` over a private WebSocket and gives you a Telegram-quality chat experience with your personal agent: streaming replies, visible reasoning, structured tool activity, channels, threads, media, search, and push notifications.
+Iris pairs with your running `hermes gateway` over a private, token-authenticated connection and gives you a Telegram-quality chat experience with your personal agent: streaming replies, visible reasoning, structured tool activity, channels, threads, media, search, and push notifications.
 
 ## Features
 
 - **Native Hermes-Gateway integration** — your hermes → gateway → Iris app
-- **Absolute Privacy!** — everything stays on your own infrastructure
-- **No file limit**
-- **No character limit**
+- **Absolute Privacy!** — chat stays on your own infrastructure
+  (push: ntfy by default, **but the default ntfy server is the public
+  `ntfy.sh`** — self-host ntfy to keep push metadata on your own machine;
+  FCM is opt-in and routes push metadata via Google — see
+  [Push notifications](#push-notifications))
+- **100 MB file uploads by default** — configurable on the gateway via
+  `max_upload_bytes` (see [Media](docs/07-media.md) §7.7); all limits are set
+  on the gateway side (hermes), not in the app
+- **No 4,096-character message limit like Telegram** — messages travel over
+  your own gateway (hard frame-body cap: 1 MiB)
 - **Full markdown support** — tables, checkmarks, bold, inline code, code blocks + syntax highlighting…
 - **HTML Artifact Preview** — agent-sent HTML/CSS/JS rendered in an in-app WebView
 - **All settings live in the app**, not in hermes `config.yml`! Change everything on the fly.
@@ -24,11 +31,11 @@ Iris pairs with your running `hermes gateway` over a private WebSocket and gives
 ## How it works
 
 ```
-hermes-agent ──> hermes gateway ──(WebSocket :8790)──> Iris app (Android / Desktop)
+hermes-agent ──> hermes gateway ──(HTTP :8791)──> Iris app (Android / Desktop)
 ```
 
 - `gateway-plugin/` is a hermes **platform plugin** (`android`). It runs inside the
-  `hermes gateway` process and opens a WebSocket server the apps connect to.
+  `hermes gateway` process and opens an HTTP server the apps connect to.
   Zero new Python dependencies, zero hermes-core changes.
 - `app/` is one Compose Multiplatform Gradle project: `:shared` (KMP, most of the
   code), `:androidApp` (native Kotlin + Jetpack Compose client), `:desktopApp`
@@ -36,7 +43,46 @@ hermes-agent ──> hermes gateway ──(WebSocket :8790)──> Iris app (And
 - The app is a first-class hermes *messaging platform*, so everything the gateway
   already does just works: slash commands, cron delivery, `send_message` routing,
   coexistence with Telegram/Discord/etc.
-- Push notifications: FCM (primary) or ntfy (fallback).
+- Push notifications: ntfy (default) or FCM (opt-in).
+
+## Push notifications
+
+Push wakes a backgrounded/offline device; on reconnect the app syncs the
+outbox, so nothing is lost.
+
+- **ntfy (default)** — the backend for truly private communication.
+  ⚠️ **By default it uses the public `https://ntfy.sh` cloud service** — push
+  metadata (topic, notification title) passes through ntfy.sh's servers.
+  Set `NTFY_SERVER_URL` to a **self-hosted ntfy** to keep push metadata on
+  your own infrastructure (recommended; public ntfy.sh SSE is also flaky).
+- **FCM (opt-in, `IRIS_PUSH_BACKEND=fcm`)** — standard/reliable, but FCM push
+  metadata (notification title, device token) is routed through **Google's
+  servers**. If you want truly private communication, use ntfy instead.
+
+Setup: [`docs/install.md`](docs/install.md); details:
+[`docs/08-push.md`](docs/08-push.md).
+
+## Install the gateway
+
+Three commands on the machine where hermes runs:
+
+```bash
+cd hermes-agent && uv sync    # 1. hermes with its venv (separate project, not this repo)
+
+# 2. install the Iris plugin — the #gateway-plugin suffix points the
+#    installer at the plugin subfolder of this monorepo
+hermes plugins install git@gitea.zephyre.one:ARIA/iris_x_hermes.git#gateway-plugin
+
+# 3. generate the pairing token + server URL, then run the gateway
+hermes gateway setup
+hermes gateway
+```
+
+`hermes gateway setup` prints the **server URL** and **pairing token / QR**
+the app needs on its Connect screen.
+
+All options (LAN binding, TLS, push, device allowlist) and the full app
+pairing walkthrough: [`docs/install.md`](docs/install.md).
 
 ## Build from source
 
@@ -52,19 +98,21 @@ No system Gradle needed — both apps use the project wrapper (`./gradlew`).
 
 ### 1. Gateway (on the gateway host)
 
+If you're developing from a checkout, skip `hermes plugins install` and
+symlink the plugin so it always tracks your working tree:
+
 ```bash
-# hermes-agent is a separate project (not part of this repo)
 cd hermes-agent && uv sync
-
-# install the Iris plugin into the live hermes home
 mkdir -p ~/.hermes/plugins
-ln -s "$PWD/gateway-plugin" ~/.hermes/plugins/android
-hermes gateway status        # should list "android"
+ln -s "$PWD/gateway-plugin" ~/.hermes/plugins/iris
+hermes gateway status        # should list the Iris platform
 
-hermes gateway setup         # generates ANDROID_TOKEN, prints the server URL
+hermes gateway setup         # generates IRIS_TOKEN, prints server URL + pairing QR
 hermes gateway               # run the gateway
 ```
 
+(Otherwise see [Install the gateway](#install-the-gateway) above.)
+
 ### 2. Android app
 
 ```bash
@@ -86,21 +134,22 @@ cd app
 
 On the app's **Connect** screen:
 
-1. **Server URL** — `ws://<gateway-ip>:8790/ws` (printed by `hermes gateway setup`).
-2. **Pairing token** — from the setup output, or `ANDROID_TOKEN` in `~/.hermes/.env`
+1. **Server URL** — `http://<gateway-ip>:8791` (printed by `hermes gateway setup`).
+2. **Pairing token** — from the setup output, or `IRIS_TOKEN` in `~/.hermes/.env`
    on the gateway host.
 3. **Test & Connect.**
 
 Notes:
 
-- The app has **no QR scanner** — pairing is manual URL + token entry.
-- The default bind is `127.0.0.1` (desktop on the same machine only). For a phone
-  on the LAN, set `ANDROID_WS_HOST` to the gateway's LAN IP.
-- Remote access: Tailscale/WireGuard, or a reverse proxy with CA-signed WSS
-  (`ANDROID_WS_CERT` / `ANDROID_WS_KEY`).
+- **Android** has a **Scan QR** button that reads the QR printed by
+  `hermes gateway setup` and pre-fills URL + token; desktop uses manual entry.
+- The default bind is `127.0.0.1` (desktop on the same machine only). For a
+  phone on the LAN, set `IRIS_HTTP_HOST` to the gateway's LAN IP.
+- Remote access: Tailscale/WireGuard, or a reverse proxy/tunnel with TLS
+  (`IRIS_HTTP_CERT` / `IRIS_HTTP_KEY`).
 
-Full walkthrough, push setup (FCM/ntfy), and troubleshooting:
-[`docs/setup.md`](docs/setup.md).
+Full walkthrough, push setup (ntfy/FCM), TLS, and troubleshooting:
+[`docs/install.md`](docs/install.md).
 
 ## Contributing
 
@@ -123,8 +172,8 @@ Contributions are welcome! Before you start:
    - Python (gateway plugin): `cd hermes-agent && scripts/run_tests.sh tests/gateway/test_android.py`
      (never bare `pytest` — hermes's runner sandboxes `HERMES_HOME`).
    - Kotlin: `cd app && ./gradlew :shared:testDebugUnitTest`
-   - Live check (gateway must be running): `gateway-plugin/tests/ws_probe.py` and
-     `gateway-plugin/tests/e2e.py` — see [`gateway-plugin/tests/README.md`](gateway-plugin/tests/README.md).
+   - Live check (gateway must be running): `tests/ws_probe.py` and
+     `tests/e2e.py` — see [`tests/README.md`](tests/README.md).
 4. **Keep the protocol in sync.** `gateway-plugin/protocol.py`,
    `app/shared/.../protocol/Protocol.kt`, and `docs/protocol/frames.schema.json`
    must always agree.

VERSION

@@ -0,0 +1 @@
+0.1.3

app/androidApp/build.gradle.kts

@@ -13,10 +13,19 @@ android {
         applicationId = "dev.iris.app"
         minSdk = 29
         targetSdk = 34
-        versionCode = 1
-        // CI passes -PappVersion=<version> (release workflow); local builds
-        // keep the default.
-        versionName = (project.findProperty("appVersion") as? String) ?: "0.1.0"
+        // Play Store requires an incrementing versionCode per upload; CI can
+        // pass -PappVersionCode=<n>. Local builds keep the default.
+        versionCode = (project.findProperty("appVersionCode")?.toString()?.toIntOrNull()) ?: 1
+        // The repo-root VERSION file is the single source of truth (bump it
+        // to cut a release); CI can still override with -PappVersion.
+        versionName =
+            (project.findProperty("appVersion") as? String)
+                ?: project
+                    .file("../../VERSION")
+                    .takeIf { it.exists() }
+                    ?.readText()
+                    ?.trim()
+                ?: "0.1.0"
     }
 
     buildTypes {

app/androidApp/src/main/AndroidManifest.xml

@@ -8,7 +8,16 @@
     <!-- M5: ntfy listener foreground service (dataSync type on API 34). -->
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE_DATA_SYNC" />
+    <!-- QR pairing (docs/20): the in-app scanner reads the camera. -->
+    <uses-permission android:name="android.permission.CAMERA" />
+    <uses-feature android:name="android.hardware.camera" android:required="false" />
 
+    <!-- M-3: cleartext (http://) is required because the gateway is a LAN host
+         addressed by IP (e.g. 192.168.x.x), not a domain. Android's
+         network_security_config can only scope cleartext to domain names, not
+         IP ranges, so a per-host allowlist isn't possible for this use case.
+         The token is still required for auth; traffic is only ever sent to the
+         user-configured gateway on the local network. -->
     <application
         android:label="Iris"
         android:icon="@mipmap/ic_launcher"
@@ -38,8 +47,22 @@
                 <category android:name="android.intent.category.BROWSABLE" />
                 <data android:scheme="iris" android:host="chat" />
             </intent-filter>
+            <!-- QR pairing (docs/20): iris://pair deep link (scanned QR / link). -->
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+                <data android:scheme="iris" android:host="pair" />
+            </intent-filter>
         </activity>
 
+        <!-- QR pairing (docs/20): full-screen scanner launched from the
+             Connect screen. Not exported; started only by our own app. -->
+        <activity
+            android:name="iris.platform.QrScanActivity"
+            android:exported="false"
+            android:screenOrientation="portrait" />
+
         <!-- M4: serve cached media/documents to other apps (ACTION_VIEW). -->
         <provider
             android:name="androidx.core.content.FileProvider"

app/androidApp/src/main/kotlin/dev/iris/app/MainActivity.kt

@@ -16,11 +16,16 @@ import iris.platform.AndroidEnv
 import iris.platform.AndroidSecureStore
 import iris.platform.AppBridge
 import iris.platform.syncNtfyListener
+import iris.util.PairLink
 
 class MainActivity : ComponentActivity() {
     private val deepLinkChatId = mutableStateOf<String?>(null)
     private val deepLinkThreadId = mutableStateOf<String?>(null)
 
+    // QR pairing (docs/20): a parsed iris://pair link to prefill the Connect
+    // screen with.
+    private val pendingPair = mutableStateOf<PairLink?>(null)
+
     private val notificationPermission =
         registerForActivityResult(ActivityResultContracts.RequestPermission()) { /* result ignored */ }
 
@@ -37,7 +42,13 @@ class MainActivity : ComponentActivity() {
         setContent {
             val chatId by deepLinkChatId
             val threadId by deepLinkThreadId
-            IrisApp(store = store, deepLinkChatId = chatId, deepLinkThreadId = threadId)
+            val pair by pendingPair
+            IrisApp(
+                store = store,
+                deepLinkChatId = chatId,
+                deepLinkThreadId = threadId,
+                deepLinkPair = pair,
+            )
         }
     }
 
@@ -49,6 +60,10 @@ class MainActivity : ComponentActivity() {
     override fun onResume() {
         super.onResume()
         AppBridge.foreground = true
+        // Wake the connect loop's backoff: after a background stint the
+        // network is usually back, so re-probe immediately instead of making
+        // the user wait out the (up to 30 s) backoff with a Connecting banner.
+        AppBridge.controller?.client?.poke()
     }
 
     override fun onPause() {
@@ -60,6 +75,14 @@ class MainActivity : ComponentActivity() {
      *  extras or an iris://chat/<id>?thread=<tid> URI). */
     private fun handleDeepLink(intent: Intent?) {
         val data = intent?.data
+        // QR pairing (docs/20): iris://pair?host=…&port=…&secure=…&token=… —
+        // the whole payload is in the query string; parse it with the shared
+        // PairLink parser.
+        if (data?.scheme == "iris" && data.host == "pair") {
+            val link = PairLink.parse(data.toString())
+            if (link != null) pendingPair.value = link
+            return
+        }
         val chatId =
             intent?.getStringExtra("chat_id")
                 ?: data?.pathSegments?.firstOrNull()

app/desktopApp/build.gradle.kts

@@ -9,10 +9,19 @@ plugins {
 val composeVersion = "1.11.1"
 val os = OperatingSystem.current()
 val arch = System.getProperty("os.arch") ?: "amd64"
-// CI passes -PappVersion=<version> (release workflow); local builds keep the
-// default. jpackage requires a plain semver (no leading "v").
-val appVersion = (project.findProperty("appVersion") as? String) ?: "0.1.0"
-val desktopTarget = when {
+// The repo-root VERSION file is the single source of truth (bump it to cut
+// a release); CI can still override with -PappVersion. jpackage requires a
+// plain semver (no leading "v").
+val appVersion =
+    (project.findProperty("appVersion") as? String)
+        ?: project
+            .file("../../VERSION")
+            .takeIf { it.exists() }
+            ?.readText()
+            ?.trim()
+        ?: "0.1.0"
+val desktopTarget =
+    when {
         os.isMacOsX -> if (arch == "aarch64") "macos-arm64" else "macos-x64"
         os.isWindows -> "windows-x64"
         else -> if (arch == "aarch64") "linux-arm64" else "linux-x64"
@@ -48,13 +57,15 @@ afterEvaluate {
 
 val jpackageInputDir = layout.buildDirectory.dir("jpackage-input")
 
-val fatJar = tasks.register<Jar>("fatJar") {
+val fatJar =
+    tasks.register<Jar>("fatJar") {
         archiveClassifier.set("all")
         duplicatesStrategy = DuplicatesStrategy.EXCLUDE
         manifest { attributes("Main-Class" to "iris.desktop.MainKt") }
         from(sourceSets.main.get().output)
         from({
-        configurations.runtimeClasspath.get()
+            configurations.runtimeClasspath
+                .get()
                 .filter { it.name.endsWith(".jar") }
                 .map { zipTree(it) }
         }) {
@@ -76,23 +87,39 @@ tasks.register<Exec>("jpackage") {
     val jpackageBin = file("${System.getProperty("java.home")}/bin/jpackage")
     val type = (project.findProperty("jpackageType") as? String) ?: "app-image"
     val inputDir = jpackageInputDir.get().asFile
-    val destDir = layout.buildDirectory.dir("jpackage").get().asFile
+    val destDir =
+        layout.buildDirectory
+            .dir("jpackage")
+            .get()
+            .asFile
     inputs.dir(inputDir)
     outputs.dir(destDir)
     commandLine(
         if (jpackageBin.exists()) jpackageBin.absolutePath else "jpackage",
-        "--name", "iris",
-        "--app-version", appVersion,
-        "--vendor", "Iris",
-        "--type", type,
-        "--input", inputDir.absolutePath,
-        "--main-jar", "desktopApp-all.jar",
-        "--main-class", "iris.desktop.MainKt",
-        "--icon", file("src/main/resources/icon.png").absolutePath,
-        "--dest", destDir.absolutePath,
-        "--java-options", "-Xmx1g",
+        "--name",
+        "iris",
+        "--app-version",
+        appVersion,
+        "--vendor",
+        "Iris",
+        "--type",
+        type,
+        "--input",
+        inputDir.absolutePath,
+        "--main-jar",
+        "desktopApp-all.jar",
+        "--main-class",
+        "iris.desktop.MainKt",
+        "--icon",
+        file("src/main/resources/icon.png").absolutePath,
+        "--dest",
+        destDir.absolutePath,
+        "--java-options",
+        "-Xmx1g",
         // M9: KCEF (JCEF) AWT reflection access (see the JavaExec block above).
-        "--java-options", "--add-opens=java.desktop/sun.awt=ALL-UNNAMED",
-        "--java-options", "--add-opens=java.desktop/java.awt.peer=ALL-UNNAMED",
+        "--java-options",
+        "--add-opens=java.desktop/sun.awt=ALL-UNNAMED",
+        "--java-options",
+        "--add-opens=java.desktop/java.awt.peer=ALL-UNNAMED",
     )
 }

app/desktopApp/src/main/kotlin/iris/desktop/Main.kt

@@ -19,9 +19,12 @@ import iris.IrisApp
 import iris.net.GatewayClient
 import iris.platform.DesktopBridge
 import iris.platform.DesktopSecureStore
+import kotlinx.coroutines.delay
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.jsonObject
+import kotlinx.serialization.json.jsonPrimitive
 import java.awt.Color
 import java.awt.Graphics2D
-import javax.imageio.ImageIO
 import java.awt.RenderingHints
 import java.awt.SystemTray
 import java.awt.event.WindowEvent
@@ -29,10 +32,7 @@ import java.awt.event.WindowFocusListener
 import java.awt.image.BufferedImage
 import java.io.File
 import java.util.concurrent.atomic.AtomicBoolean
-import kotlinx.coroutines.delay
-import kotlinx.serialization.json.Json
-import kotlinx.serialization.json.jsonObject
-import kotlinx.serialization.json.jsonPrimitive
+import javax.imageio.ImageIO
 
 /**
  * M6: desktop shell (docs/11 §11.2/§11.3).
@@ -48,6 +48,7 @@ private val windowJson = File(System.getProperty("user.home"), ".iris/window.jso
 
 // Window/taskbar icon (src/main/resources/icon.png).
 private class IrisDesktop
+
 private val windowIcon = ImageIO.read(IrisDesktop::class.java.getResource("/icon.png")!!).toComposeImageBitmap()
 
 // Tray icon colors (ARGB). .toInt(): the literals exceed the Int range.
@@ -87,14 +88,36 @@ fun main() {
         LaunchedEffect(Unit) {
             while (true) {
                 delay(2_000)
-                val state = DesktopBridge.controller?.client?.state?.value
-                val (color, tooltip) = when (state) {
+                val state =
+                    DesktopBridge.controller
+                        ?.client
+                        ?.state
+                        ?.value
+                val (color, tooltip) =
+                    when (state) {
                         null,
-                    is GatewayClient.State.Disconnected -> TRAY_OFFLINE to "Iris — offline"
+                        is GatewayClient.State.Disconnected,
+                        -> {
+                            TRAY_OFFLINE to "Iris — offline"
+                        }
+
                         is GatewayClient.State.Connecting,
-                    is GatewayClient.State.Reconnecting -> TRAY_CONNECTING to "Iris — connecting…"
-                    is GatewayClient.State.Connected -> TRAY_CONNECTED to "Iris — connected"
-                    is GatewayClient.State.AuthFailed -> TRAY_AUTH_FAILED to "Iris — auth failed"
+                        is GatewayClient.State.Reconnecting,
+                        -> {
+                            TRAY_CONNECTING to "Iris — connecting…"
+                        }
+
+                        is GatewayClient.State.Connected -> {
+                            TRAY_CONNECTED to "Iris — connected"
+                        }
+
+                        is GatewayClient.State.AuthFailed -> {
+                            TRAY_AUTH_FAILED to "Iris — auth failed"
+                        }
+
+                        is GatewayClient.State.TlsConfirmRequired -> {
+                            TRAY_AUTH_FAILED to "Iris — gateway certificate needs confirmation"
+                        }
                     }
                 trayColor = color
                 trayTooltip = tooltip
@@ -126,7 +149,8 @@ fun main() {
             state = loadWindowState(),
         ) {
             composeWindow = window
-            window.addWindowFocusListener(object : WindowFocusListener {
+            window.addWindowFocusListener(
+                object : WindowFocusListener {
                     override fun windowGainedFocus(e: WindowEvent) {
                         DesktopBridge.foreground = true
                     }
@@ -134,7 +158,8 @@ fun main() {
                     override fun windowLostFocus(e: WindowEvent) {
                         DesktopBridge.foreground = false
                     }
-            })
+                },
+            )
             IrisApp(store)
         }
     }

app/gradle.properties

@@ -2,8 +2,12 @@ org.gradle.jvmargs=-Xmx4g -Dfile.encoding=UTF-8
 # Desktop targets the Java 21 runtime (Markdown renderer 0.44.0 is
 # Java-21 bytecode). AGP is JDK-21-compatible, so the Android build is
 # unaffected (its bytecode target stays JVM 17 via minSdk/jvmTarget).
-# Point this at your local JDK 21 if the path differs.
-org.gradle.java.home=/usr/lib/jvm/java-21-openjdk
+#
+# The JDK-21 home is machine-specific, so it is NOT hardcoded here (a
+# committed path would break every other checkout). Set it per machine via
+# one of:
+#   - ~/.gradle/gradle.properties  ->  org.gradle.java.home=/path/to/jdk21
+#   - or export JAVA_HOME=/path/to/jdk21 before running ./gradlew
 org.gradle.caching=true
 org.gradle.configuration-cache=true
 

app/shared/build.gradle.kts

@@ -29,6 +29,51 @@ val kcefVersion = "2025.03.23"
 val markdownVersion = "0.44.0"
 // Local cache DB (messages/channels/meta; docs/10 §10.7, docs/16).
 val sqldelightVersion = "2.3.2"
+// CameraX + ML Kit for in-app QR pairing (docs/20). Android-only.
+val cameraxVersion = "1.5.1"
+val mlKitVersion = "16.1.1"
+
+// ── App version (generated) ─────────────────────────────────────────────
+// The repo-root VERSION file is the single source of truth (bump it to cut
+// a release; CI can still override with -PappVersion). Generate AppVersion.kt
+// into commonMain so both targets can display it in Settings and send it to
+// the gateway (X-Iris-App-Version header).
+//
+// A real task with the VERSION file as a DECLARED input: on a
+// configuration-cache hit the script body does not re-run, so only the task
+// (keyed on the file's content) can regenerate AppVersion.kt after a bump.
+// The doLast reads everything from the task's own inputs/outputs (which are
+// configuration-cache serializable) — it must not reference script-scope
+// vals, because a .kts script lambda captures the script object and the
+// configuration cache rejects that.
+val generatedVersionDir = layout.buildDirectory.dir("generated/app-version")
+val generateAppVersion by tasks.registering {
+    inputs.file(project.file("../../VERSION"))
+    inputs.property("appVersionOverride", (project.findProperty("appVersion") as? String).orEmpty())
+    val outFile = generatedVersionDir.map { it.file("AppVersion.kt") }
+    outputs.file(outFile)
+    doLast {
+        val override = inputs.properties["appVersionOverride"] as? String ?: ""
+        val versionFile = inputs.files.singleFile
+        val version =
+            override.ifBlank {
+                versionFile.takeIf { it.exists() }?.readText()?.trim() ?: "0.1.0"
+            }
+        val f = outFile.get().asFile
+        f.parentFile?.mkdirs()
+        f.writeText(
+            """
+            |package iris
+            |
+            |/** Generated from the repo-root VERSION file - do not edit. */
+            |object AppVersion {
+            |    const val VERSION = "$version"
+            |}
+            |
+            """.trimMargin(),
+        )
+    }
+}
 
 kotlin {
     android {
@@ -50,6 +95,11 @@ kotlin {
     }
 
     sourceSets {
+        // AppVersion.kt is generated from the repo-root VERSION file (see
+        // generateAppVersion above) into commonMain so both targets can read it.
+        commonMain {
+            kotlin.srcDir(generatedVersionDir)
+        }
         // Both targets are JVM-based (androidTarget + jvm("desktop")), so
         // shared JVM code (File I/O, SHA-256, media cache) lives in jvmMain.
         val jvmMain by creating { dependsOn(commonMain.get()) }
@@ -111,6 +161,13 @@ kotlin {
             implementation("androidx.media3:media3-ui:1.11.0")
             // SAF picker (rememberLauncherForActivityResult).
             implementation("androidx.activity:activity-compose:1.13.0")
+            // CameraX + ML Kit for QR pairing (docs/20): the scanner activity
+            // uses the camera2 CameraX backend and ML Kit's barcode model.
+            implementation("androidx.camera:camera-core:$cameraxVersion")
+            implementation("androidx.camera:camera-camera2:$cameraxVersion")
+            implementation("androidx.camera:camera-lifecycle:$cameraxVersion")
+            implementation("androidx.camera:camera-view:$cameraxVersion")
+            implementation("com.google.mlkit:barcode-scanning:$mlKitVersion")
             // M5: FCM push (inert without a Firebase project / google-services.json;
             // the ntfy listener is the fallback). The google-services plugin is
             // applied conditionally in the app module.
@@ -128,3 +185,8 @@ sqldelight {
         }
     }
 }
+
+// Every Kotlin compile depends on the generated AppVersion.kt being current.
+tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile>().configureEach {
+    dependsOn(generateAppVersion)
+}

app/shared/src/androidMain/kotlin/iris/platform/AndroidPush.kt

@@ -1,6 +1,7 @@
 package iris.platform
 
 import android.Manifest
+import android.content.Context
 import android.content.Intent
 import android.content.pm.PackageManager
 import androidx.core.content.ContextCompat
@@ -15,7 +16,9 @@ actual fun setActiveController(controller: Any?) {
 actual fun syncNtfyListener(backend: String) {
     val context = AndroidEnv.context
     val intent = Intent(context, NtfyListenerService::class.java)
-    val store = AndroidSecureStore(context)
+    // L-18: reuse one AndroidSecureStore instead of rebuilding it (and
+    // re-running EncryptedSharedPreferences.create + migration) on every call.
+    val store = ntfyStore(context)
     if (backend == "ntfy" && store.ntfyTopic.isNotBlank()) {
         ContextCompat.startForegroundService(context, intent)
     } else {
@@ -25,6 +28,18 @@ actual fun syncNtfyListener(backend: String) {
     }
 }
 
+private val ntfyStoreLock = Any()
+
+@Volatile
+private var cachedNtfyStore: AndroidSecureStore? = null
+
+private fun ntfyStore(context: Context): AndroidSecureStore {
+    cachedNtfyStore?.let { return it }
+    return synchronized(ntfyStoreLock) {
+        cachedNtfyStore ?: AndroidSecureStore(context).also { cachedNtfyStore = it }
+    }
+}
+
 actual fun postSystemNotification(
     chatId: String?,
     chatName: String?,
@@ -33,7 +48,7 @@ actual fun postSystemNotification(
     threadId: String?,
 ) {
     val context = AndroidEnv.context
-    val id = chatId ?: "android:default"
+    val id = chatId ?: "default"
     // POST_NOTIFICATIONS is a runtime permission on API 33+.
     if (ContextCompat.checkSelfPermission(context, Manifest.permission.POST_NOTIFICATIONS)
         != PackageManager.PERMISSION_GRANTED

app/shared/src/androidMain/kotlin/iris/platform/AndroidSecureStore.kt

@@ -9,6 +9,7 @@ import iris.data.SecureStore
 import iris.ui.theme.Backdrop
 import iris.ui.theme.BackgroundMode
 import iris.ui.theme.UserTheme
+import iris.util.STREAM_SMOOTHNESS_DEFAULT
 import java.util.UUID
 
 /**
@@ -76,6 +77,14 @@ class AndroidSecureStore(
         get() = prefs.getString(KEY_TOKEN, "").orEmpty()
         set(value) = prefs.edit().putString(KEY_TOKEN, value.trim()).apply()
 
+    override var deviceToken: String
+        get() = prefs.getString(KEY_DEVICE_TOKEN, "").orEmpty()
+        set(value) = prefs.edit().putString(KEY_DEVICE_TOKEN, value.trim()).apply()
+
+    override var pinnedCertFingerprint: String
+        get() = prefs.getString(KEY_PINNED_CERT, "").orEmpty()
+        set(value) = prefs.edit().putString(KEY_PINNED_CERT, value.trim()).apply()
+
     override val deviceId: String
         get() {
             var id = prefs.getString(KEY_DEVICE_ID, null)
@@ -126,6 +135,10 @@ class AndroidSecureStore(
         get() = prefs.getBoolean(KEY_STREAMING_ENABLED, true)
         set(value) = prefs.edit().putBoolean(KEY_STREAMING_ENABLED, value).apply()
 
+    override var streamSmoothness: Float
+        get() = prefs.getFloat(KEY_STREAM_SMOOTHNESS, STREAM_SMOOTHNESS_DEFAULT)
+        set(value) = prefs.edit().putFloat(KEY_STREAM_SMOOTHNESS, value).apply()
+
     override var reasoningAutoCollapse: Boolean
         get() = prefs.getBoolean(KEY_REASONING_AUTO_COLLAPSE, true)
         set(value) = prefs.edit().putBoolean(KEY_REASONING_AUTO_COLLAPSE, value).apply()
@@ -176,13 +189,28 @@ class AndroidSecureStore(
     ) {
         serverUrl = url
         this.token = token
+        // A (re-)pair may target a different gateway: the old per-device
+        // token is dead there. The next hello.ack re-mints/returns it.
+        deviceToken = ""
     }
 
     override fun clear() {
+        // M-10: clearing pairing must also wipe the device identity + push
+        // state, otherwise a re-pair to a different gateway would keep the old
+        // deviceId/syncCursor/ntfyTopic and the server would treat the new
+        // pairing as the same device.
         prefs
             .edit()
             .remove(KEY_URL)
             .remove(KEY_TOKEN)
+            .remove(KEY_DEVICE_TOKEN)
+            .remove(KEY_DEVICE_ID)
+            .remove(KEY_SYNC_CURSOR)
+            .remove(KEY_FCM_TOKEN)
+            .remove(KEY_NTFY_TOPIC)
+            .remove(KEY_NTFY_SERVER)
+            .remove(KEY_PUSH_BACKEND)
+            .remove(KEY_PINNED_CERT)
             .apply()
     }
 
@@ -191,15 +219,18 @@ class AndroidSecureStore(
         const val SECURE_PREFS_NAME = "iris_secure"
         const val KEY_URL = "server_url"
         const val KEY_TOKEN = "token"
+        const val KEY_DEVICE_TOKEN = "device_token"
         const val KEY_DEVICE_ID = "device_id"
         const val KEY_SYNC_CURSOR = "sync_cursor"
         const val KEY_FCM_TOKEN = "fcm_token"
         const val KEY_NTFY_TOPIC = "ntfy_topic"
         const val KEY_NTFY_SERVER = "ntfy_server"
         const val KEY_PUSH_BACKEND = "push_backend"
+        const val KEY_PINNED_CERT = "pinned_cert_fingerprint"
         const val KEY_THREADS_ENABLED = "threads_enabled"
         const val KEY_TOOL_DETAIL = "tool_detail"
         const val KEY_STREAMING_ENABLED = "streaming_enabled"
+        const val KEY_STREAM_SMOOTHNESS = "stream_smoothness"
         const val KEY_REASONING_AUTO_COLLAPSE = "reasoning_auto_collapse"
         const val KEY_USER_BUBBLE_COLOR = "user_bubble_color"
         const val KEY_AGENT_BUBBLE_COLOR = "agent_bubble_color"

app/shared/src/androidMain/kotlin/iris/platform/AndroidStorage.kt

@@ -6,6 +6,7 @@ import iris.db.IrisDatabase
 
 actual fun appDataDir(): String = AndroidEnv.context.filesDir.absolutePath
 
-// The driver creates the schema in the open-helper callback (v1: no
-// migrations yet; add .sqm files + `Schema.migrate` in onUpgrade later).
+// The schema-aware driver creates the schema on first run and applies
+// pending .sqm migrations on existing DBs (e.g. v1 -> v2: the `tool`
+// table), stamping PRAGMA user_version along the way.
 actual fun createCacheDriver(): SqlDriver = AndroidSqliteDriver(IrisDatabase.Schema, AndroidEnv.context, "iris_cache.db")

app/shared/src/androidMain/kotlin/iris/platform/AndroidWebView.kt

@@ -22,7 +22,10 @@ import com.multiplatform.webview.web.rememberWebViewStateWithHTMLData
 private const val ARTIFACT_BASE_URL = "https://iris-artifact.local/"
 
 @Composable
-actual fun PlatformWebView(html: String, modifier: Modifier) {
+actual fun PlatformWebView(
+    html: String,
+    modifier: Modifier,
+) {
     val state = rememberWebViewStateWithHTMLData(data = html, baseUrl = ARTIFACT_BASE_URL)
     state.webSettings.androidWebSettings.domStorageEnabled = true
     WebView(state, modifier = modifier)
@@ -33,16 +36,18 @@ actual fun Modifier.handleSystemBack(onBack: () -> Unit): Modifier {
     val dispatcher = LocalOnBackPressedDispatcherOwner.current?.onBackPressedDispatcher
     val currentOnBack = rememberUpdatedState(onBack)
     DisposableEffect(dispatcher) {
-        if (dispatcher != null) {
-            val callback = object : OnBackPressedCallback(true) {
+        val callback =
+            dispatcher?.let { d ->
+                val c =
+                    object : OnBackPressedCallback(true) {
                         override fun handleOnBackPressed() {
                             currentOnBack.value()
                         }
                     }
-            dispatcher.addCallback(callback)
-            onDispose { callback.remove() }
+                d.addCallback(c)
+                c
             }
-        onDispose { }
+        onDispose { callback?.remove() }
     }
     return this
 }

app/shared/src/androidMain/kotlin/iris/platform/AppBridge.kt

@@ -14,7 +14,14 @@ object AppBridge {
     @Volatile
     var controller: IrisController? = null
 
-    /** True while the launcher activity is resumed (set by MainActivity). */
+    /** True while the launcher activity is resumed (set by MainActivity).
+     *  A change is forwarded to the controller (M8: unread clear on focus). */
     @Volatile
     var foreground: Boolean = false
+        set(value) {
+            if (field != value) {
+                field = value
+                controller?.setForeground(value)
+            }
+        }
 }

app/shared/src/androidMain/kotlin/iris/platform/IrisFirebaseMessagingService.kt

@@ -11,32 +11,41 @@ import iris.net.GatewayClient
  *
  * - [onNewToken]: persist the rotated token and push it to the server via
  *   `fcm.register` (so the next push targets the current token).
- * - [onMessageReceived]: the data payload drives a silent sync. When the app
- *   is foregrounded the WS path already delivered the frame (in-app banner),
- *   so we only post a system notification when backgrounded.
+ * - [onMessageReceived]: posts a system notification from the data payload.
+ *   When the app is foregrounded the SSE path already delivered the frame
+ *   (in-app banner), so we only post a notification when backgrounded.
  *
  * Inert without a Firebase project (no google-services.json): the service is
  * declared in the manifest but never receives messages, and the app falls
  * back to the ntfy listener.
  */
 class IrisFirebaseMessagingService : FirebaseMessagingService() {
-
     override fun onNewToken(token: String) {
         val store = AndroidSecureStore(applicationContext)
         store.fcmToken = token
-        // Push the rotation to the server if we're connected.
+        // Push the rotation to the server if we're connected (the ntfy topic
+        // rides along so a wiped registry recovers both push tokens).
         AppBridge.controller?.client?.sendFrame(
-            iris.protocol.fcmRegisterFrame(fcmToken = token),
+            iris.protocol.fcmRegisterFrame(
+                fcmToken = token,
+                ntfyTopic = store.ntfyTopic.ifBlank { null },
+            ),
         )
     }
 
     override fun onMessageReceived(message: RemoteMessage) {
-        // Foreground + live WS: the in-app banner already showed this.
+        // Foreground + live SSE: the in-app banner already showed this.
         if (AppBridge.foreground) return
-        // Live WS: the frame arrives over the socket and the controller
+        // Live SSE: the frame arrives over the stream and the controller
         // mirrors it to a system notification itself — posting here would
         // duplicate it (docs/08 §8.7).
-        if (AppBridge.controller?.client?.state?.value is GatewayClient.State.Connected) return
+        if (AppBridge.controller
+                ?.client
+                ?.state
+                ?.value is GatewayClient.State.Connected
+        ) {
+            return
+        }
         // Backgrounded/killed: FCM already displayed the `notification`
         // payload on our behalf (the data payload only carries sync
         // metadata). Posting again would show a second notification with a
@@ -44,7 +53,7 @@ class IrisFirebaseMessagingService : FirebaseMessagingService() {
         // exception: the app must display them itself.
         if (message.notification != null) return
         val data = message.data
-        val chatId = data["chat_id"] ?: "android:default"
+        val chatId = data["chat_id"] ?: "default"
         val threadId = data["thread_id"]
         val title = data["title"] ?: "Iris"
         val body = data["body"] ?: data["title"].orEmpty()

app/shared/src/androidMain/kotlin/iris/platform/IrisNotifications.kt

@@ -5,7 +5,6 @@ import android.app.NotificationManager
 import android.app.PendingIntent
 import android.content.Context
 import android.content.Intent
-import android.os.Build
 import androidx.core.app.NotificationCompat
 
 /**
@@ -21,15 +20,22 @@ object IrisNotifications {
     const val ACTION_OPEN_CHAT = "dev.iris.app.OPEN_CHAT"
     private const val NOTIF_ID_BASE = 1_000_000
 
-    fun ensureChannel(context: Context, chatId: String, chatName: String? = null) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return
+    // L-31: notification channel ids are capped at 64 chars (Android limit) and
+    // are user-visible, so a long server-provided chatId must be truncated.
+    private fun channelIdFor(chatId: String): String = (CHANNEL_PREFIX + chatId).take(64)
+
+    fun ensureChannel(
+        context: Context,
+        chatId: String,
+        chatName: String? = null,
+    ) {
         val nm = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
-        val id = CHANNEL_PREFIX + chatId
+        val id = channelIdFor(chatId)
         val name = chatName ?: chatId
         if (nm.getNotificationChannel(id) == null) {
             nm.createNotificationChannel(
                 NotificationChannel(id, name, NotificationManager.IMPORTANCE_DEFAULT)
-                    .apply { description = "Iris messages for $name" }
+                    .apply { description = "Iris messages for $name" },
             )
         }
     }
@@ -43,14 +49,18 @@ object IrisNotifications {
         threadId: String?,
     ) {
         ensureChannel(context, chatId, chatName)
-        val id = NOTIF_ID_BASE + (chatId.hashCode() and 0xffff)
-        val intent = Intent(ACTION_OPEN_CHAT).apply {
+        // L-32: 24-bit hash (was 16-bit) to reduce the chance two chatIds map
+        // to the same notification id and clobber each other.
+        val id = NOTIF_ID_BASE + (chatId.hashCode() and 0xffffff)
+        val intent =
+            Intent(ACTION_OPEN_CHAT).apply {
                 setPackage(context.packageName)
                 flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TOP
                 putExtra("chat_id", chatId)
                 if (threadId != null) putExtra("thread_id", threadId)
             }
-        val pi = PendingIntent.getActivity(
+        val pi =
+            PendingIntent.getActivity(
                 context,
                 id,
                 intent,
@@ -59,7 +69,8 @@ object IrisNotifications {
         val nm = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
         nm.notify(
             id,
-            NotificationCompat.Builder(context, CHANNEL_PREFIX + chatId)
+            NotificationCompat
+                .Builder(context, channelIdFor(chatId))
                 .setSmallIcon(android.R.drawable.ic_dialog_info)
                 .setContentTitle(title)
                 .setContentText(body)

app/shared/src/androidMain/kotlin/iris/platform/NtfyListenerService.kt

@@ -11,11 +11,13 @@ import android.os.IBinder
 import androidx.core.app.NotificationCompat
 import androidx.core.content.ContextCompat
 import iris.protocol.IrisJson
+import iris.util.IrisLog
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.SupervisorJob
 import kotlinx.coroutines.cancel
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import kotlinx.serialization.json.JsonObject
 import kotlinx.serialization.json.JsonPrimitive
@@ -28,18 +30,31 @@ import java.util.concurrent.TimeUnit
  *
  * A foreground service that subscribes to this device's ntfy topic and posts
  * a system notification for each push. The structured payload rides in the
- * `X-Data` header (JSON: chat_id, kind, cursor, thread_id); the message body
- * is the short preview. When the app is foregrounded the WS path already
- * delivered the frame, so the service skips posting to avoid a duplicate.
+ * `X-Data` SSE field (JSON: chat_id, kind, cursor, thread_id); the message
+ * body is the short preview. When the app is foregrounded the SSE path
+ * already delivered the frame, so the service skips posting to avoid a
+ * duplicate.
+ *
+ * The stream is reconnected with capped exponential backoff when it drops
+ * (EOF, network error, or a non-2xx response) — `START_STICKY` alone only
+ * restarts the service after process death, not after a failed read.
  */
 class NtfyListenerService : Service() {
     private val scope = CoroutineScope(SupervisorJob() + Dispatchers.IO)
     private var streamJob: Job? = null
-    private val client = OkHttpClient.Builder()
-        .readTimeout(0, TimeUnit.MILLISECONDS) // long-lived stream
+    private val client =
+        OkHttpClient
+            .Builder()
+            // ntfy sends keep-alive comments every ~10 s; a 60 s read timeout
+            // detects a half-open connection instead of hanging forever.
+            .readTimeout(60, TimeUnit.SECONDS)
             .build()
 
-    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+    override fun onStartCommand(
+        intent: Intent?,
+        flags: Int,
+        startId: Int,
+    ): Int {
         startForeground(NOTIF_ID, foregroundNotification())
         streamJob?.cancel()
         streamJob = scope.launch { stream() }
@@ -60,24 +75,56 @@ class NtfyListenerService : Service() {
         if (topic.isBlank()) return
         val server = store.ntfyServer.ifBlank { DEFAULT_NTFY_SERVER }.removeSuffix("/")
         val url = "$server/$topic"
-        val request = Request.Builder()
+        val request =
+            Request
+                .Builder()
                 .url(url)
                 .header("Accept", "text/event-stream")
                 .build()
+        var backoff = 1_000L
+        while (true) {
             try {
                 client.newCall(request).execute().use { resp ->
-                if (!resp.isSuccessful) return
+                    if (!resp.isSuccessful) {
+                        IrisLog.w("ntfy stream HTTP ${resp.code}")
+                    } else {
                         val body = resp.body ?: return
-                val source = body.source()
+                        readEvents(body.source())
+                    }
+                }
+            } catch (e: Exception) {
+                IrisLog.w("ntfy stream dropped: ${e.message}")
+            }
+            // Stream ended (EOF, error, or non-2xx): back off and reconnect.
+            delay(backoff)
+            backoff = (backoff * 2).coerceAtMost(30_000L)
+        }
+    }
+
+    /**
+     * Read ntfy SSE events until EOF. `readUtf8Line()` returns null at EOF;
+     * do NOT use `source.exhausted()` here — it reads until EOF and would
+     * block forever on a live stream.
+     */
+    private fun readEvents(source: okio.BufferedSource) {
         var data: String? = null
         var title: String? = null
         var msgBody: String? = null
-                while (!source.exhausted()) {
+        while (true) {
             val line = source.readUtf8Line() ?: break
             when {
-                        line.startsWith("X-Data:") -> data = line.removePrefix("X-Data:").trim()
-                        line.startsWith("X-Title:") -> title = line.removePrefix("X-Title:").trim()
-                        line.startsWith("data:") -> msgBody = line.removePrefix("data:").trim()
+                line.startsWith("X-Data:") -> {
+                    data = line.removePrefix("X-Data:").trim()
+                }
+
+                line.startsWith("X-Title:") -> {
+                    title = line.removePrefix("X-Title:").trim()
+                }
+
+                line.startsWith("data:") -> {
+                    msgBody = line.removePrefix("data:").trim()
+                }
+
                 line.isEmpty() -> {
                     // Event boundary: process the accumulated message.
                     data?.let { handleData(it, title, msgBody) }
@@ -88,19 +135,19 @@ class NtfyListenerService : Service() {
             }
         }
     }
-        } catch (_: Exception) {
-            // Stream dropped; the service is START_STICKY so the system
-            // restarts it. If it keeps failing, the WS path still works.
-        }
-    }
 
-    private fun handleData(dataJson: String, title: String?, msgBody: String?) {
-        val data = try {
+    private fun handleData(
+        dataJson: String,
+        title: String?,
+        msgBody: String?,
+    ) {
+        val data =
+            try {
                 IrisJson.instance.decodeFromString<JsonObject>(dataJson)
             } catch (_: Exception) {
                 null
             }
-        val chatId = data?.str("chat_id") ?: "android:default"
+        val chatId = data?.str("chat_id") ?: "default"
         val threadId = data?.str("thread_id")
         // The short preview rides in the SSE `data:` field; fall back to the
         // X-Title, then a generic label.
@@ -126,11 +173,12 @@ class NtfyListenerService : Service() {
                         LISTENER_CHANNEL,
                         "Iris push listener",
                         NotificationManager.IMPORTANCE_MIN,
-                    )
+                    ),
                 )
             }
         }
-        return NotificationCompat.Builder(context, LISTENER_CHANNEL)
+        return NotificationCompat
+            .Builder(context, LISTENER_CHANNEL)
             .setSmallIcon(android.R.drawable.ic_dialog_info)
             .setContentTitle("Iris")
             .setContentText("Listening for messages")
@@ -146,5 +194,4 @@ class NtfyListenerService : Service() {
 }
 
 /** Read a string field from a JSON object (null when absent / not a string). */
-private fun JsonObject?.str(key: String): String? =
-    (this?.get(key) as? JsonPrimitive)?.content
+private fun JsonObject?.str(key: String): String? = (this?.get(key) as? JsonPrimitive)?.content

app/shared/src/androidMain/kotlin/iris/platform/PlatformQr.kt

@@ -0,0 +1,49 @@
+package iris.platform
+
+import android.app.Activity
+import android.content.Context
+import android.content.ContextWrapper
+import android.content.Intent
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.material3.Button
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.LocalContext
+
+/**
+ * Android QR scanner (docs/20): launches [QrScanActivity] and returns the
+ * scanned text (or null on cancel) to [onResult].
+ */
+@Composable
+actual fun QrScanButton(onResult: (String?) -> Unit) {
+    val context = LocalContext.current
+    val launcher =
+        rememberLauncherForActivityResult(
+            ActivityResultContracts.StartActivityForResult(),
+        ) { result ->
+            val text =
+                if (result.resultCode == Activity.RESULT_OK) {
+                    result.data?.getStringExtra(QrScanActivity.EXTRA_QR)
+                } else {
+                    null
+                }
+            onResult(text)
+        }
+    Button(onClick = {
+        val activity = context.resolveActivity()
+        if (activity != null) {
+            launcher.launch(Intent(activity, QrScanActivity::class.java))
+        }
+    }) {
+        Text("Scan QR")
+    }
+}
+
+/** Walk a (possibly wrapped) context to the hosting [Activity], if any. */
+private fun Context.resolveActivity(): Activity? =
+    when (this) {
+        is Activity -> this
+        is ContextWrapper -> baseContext.resolveActivity()
+        else -> null
+    }

app/shared/src/androidMain/kotlin/iris/platform/QrScanActivity.kt

@@ -0,0 +1,136 @@
+package iris.platform
+
+import android.Manifest
+import android.app.Activity
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.os.Bundle
+import android.view.ViewGroup
+import androidx.activity.ComponentActivity
+import androidx.activity.addCallback
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.camera.core.CameraSelector
+import androidx.camera.core.ImageAnalysis
+import androidx.camera.core.ImageProxy
+import androidx.camera.core.Preview
+import androidx.camera.lifecycle.ProcessCameraProvider
+import androidx.camera.view.PreviewView
+import androidx.core.content.ContextCompat
+import com.google.mlkit.vision.barcode.BarcodeScanning
+import com.google.mlkit.vision.common.InputImage
+
+/**
+ * Full-screen QR scanner (docs/20). Launched from the Connect screen's
+ * "Scan QR" button; returns the raw QR text via [EXTRA_QR] on
+ * [Activity.RESULT_OK], or [Activity.RESULT_CANCELED] on back/cancel.
+ *
+ * Uses the camera2 CameraX backend + ML Kit's barcode model. The camera is
+ * stopped in [onDestroy].
+ */
+class QrScanActivity : ComponentActivity() {
+    companion object {
+        /** Intent extra carrying the scanned QR text. */
+        const val EXTRA_QR = "qr"
+    }
+
+    private lateinit var previewView: PreviewView
+    private var cameraProvider: ProcessCameraProvider? = null
+    private var settled = false
+
+    private val permissionLauncher =
+        registerForActivityResult(
+            ActivityResultContracts.RequestPermission(),
+        ) { granted ->
+            if (granted) startCamera() else finish()
+        }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        previewView =
+            PreviewView(this).apply {
+                layoutParams =
+                    ViewGroup.LayoutParams(
+                        ViewGroup.LayoutParams.MATCH_PARENT,
+                        ViewGroup.LayoutParams.MATCH_PARENT,
+                    )
+            }
+        setContentView(previewView)
+
+        onBackPressedDispatcher.addCallback(this) {
+            if (!settled) setResult(Activity.RESULT_CANCELED)
+            finish()
+        }
+
+        if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
+            == PackageManager.PERMISSION_GRANTED
+        ) {
+            startCamera()
+        } else {
+            permissionLauncher.launch(Manifest.permission.CAMERA)
+        }
+    }
+
+    private fun startCamera() {
+        val future = ProcessCameraProvider.getInstance(this)
+        future.addListener(
+            {
+                val provider = future.get()
+                cameraProvider = provider
+                val preview =
+                    Preview.Builder().build().also {
+                        it.setSurfaceProvider(previewView.surfaceProvider)
+                    }
+                val analyzer =
+                    ImageAnalysis
+                        .Builder()
+                        .setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST)
+                        .build()
+                try {
+                    provider.unbindAll()
+                    provider.bindToLifecycle(
+                        this,
+                        CameraSelector.DEFAULT_BACK_CAMERA,
+                        preview,
+                        analyzer,
+                    )
+                } catch (e: Exception) {
+                    // No usable camera (e.g. headless emulator): bail out.
+                    finish()
+                    return@addListener
+                }
+                analyzer.setAnalyzer(ContextCompat.getMainExecutor(this)) { proxy ->
+                    analyzeImage(proxy)
+                }
+            },
+            ContextCompat.getMainExecutor(this),
+        )
+    }
+
+    private fun analyzeImage(proxy: ImageProxy) {
+        val mediaImage = proxy.image
+        if (mediaImage == null) {
+            proxy.close()
+            return
+        }
+        val inputImage = InputImage.fromMediaImage(mediaImage, proxy.imageInfo.rotationDegrees)
+        BarcodeScanning
+            .getClient()
+            .process(inputImage)
+            .addOnSuccessListener { barcodes ->
+                val text = barcodes.firstOrNull { it.rawValue != null }?.rawValue
+                if (text != null) finishWithResult(text)
+            }.addOnCompleteListener { proxy.close() }
+    }
+
+    private fun finishWithResult(text: String) {
+        if (settled) return
+        settled = true
+        setResult(Activity.RESULT_OK, Intent().putExtra(EXTRA_QR, text))
+        finish()
+    }
+
+    override fun onDestroy() {
+        cameraProvider?.unbindAll()
+        super.onDestroy()
+    }
+}

app/shared/src/commonMain/kotlin/iris/IrisApp.kt

@@ -10,6 +10,7 @@ import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.key
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.layout.ContentScale
@@ -26,19 +27,21 @@ import iris.ui.theme.IrisColors
 import iris.ui.theme.IrisTheme
 import iris.ui.theme.LocalUserTheme
 import iris.ui.theme.rememberBackgroundImage
+import iris.util.PairLink
 
 /**
  * Root composable shared by the Android and Desktop shells.
  *
- * M1: routes between the Connect screen (unpaired / auth failed) and the
- * Chat screen (paired). Later milestones add the channel list, search,
- * settings, and media (docs/10-android-app.md).
+ * Routes between the Connect screen (unpaired / auth failed) and the main
+ * app (paired), which hosts the channel list, chat, search, settings, and
+ * media (docs/10-android-app.md).
  */
 @Composable
 fun IrisApp(
     store: SecureStore,
     deepLinkChatId: String? = null,
     deepLinkThreadId: String? = null,
+    deepLinkPair: PairLink? = null,
 ) {
     val controller = remember(store) { IrisController(store) }
     DisposableEffect(controller) {
@@ -66,7 +69,8 @@ fun IrisApp(
         // untouched, so the UI keeps its proportions at any size.
         CompositionLocalProvider(
             LocalUserTheme provides theme,
-            LocalDensity provides Density(
+            LocalDensity provides
+                Density(
                     density = baseDensity.density,
                     fontScale = baseDensity.fontScale * fontScale,
                 ),
@@ -95,20 +99,49 @@ fun IrisApp(
                         )
                     }
                     val s = state
+                    // QR pairing (docs/20): an iris://pair deep link prefills
+                    // the Connect screen, taking priority over stored creds.
+                    val pairUrl = deepLinkPair?.url ?: store.serverUrl
+                    val pairToken = deepLinkPair?.token ?: store.token
                     when (s) {
-                        GatewayClient.State.Disconnected ->
-                            ConnectScreen(controller, prefillUrl = store.serverUrl, prefillToken = store.token)
-                        is GatewayClient.State.AuthFailed ->
+                        GatewayClient.State.Disconnected -> {
+                            key(deepLinkPair) {
+                                ConnectScreen(controller, prefillUrl = pairUrl, prefillToken = pairToken)
+                            }
+                        }
+
+                        is GatewayClient.State.AuthFailed -> {
+                            key(deepLinkPair) {
                                 ConnectScreen(
                                     controller,
-                                prefillUrl = store.serverUrl,
-                                prefillToken = store.token,
+                                    prefillUrl = pairUrl,
+                                    prefillToken = pairToken,
                                     initialError = "Pairing rejected: ${s.message}",
                                 )
+                            }
+                        }
+
+                        // TLS: the gateway's certificate is untrusted and not
+                        // the pinned one (docs/09 §9.4) — ask the user to
+                        // confirm its fingerprint (SSH host-key style).
+                        is GatewayClient.State.TlsConfirmRequired -> {
+                            key(deepLinkPair) {
+                                ConnectScreen(
+                                    controller,
+                                    prefillUrl = pairUrl,
+                                    prefillToken = pairToken,
+                                    initialError = "Gateway certificate needs confirmation — verify its fingerprint on the gateway host, then confirm below.",
+                                    tlsFingerprint = s.fingerprint,
+                                )
+                            }
+                        }
+
                         // Connecting / Reconnecting / Connected all render the chat; the header
                         // status bubble + connection banner show the link state
                         // without blocking the view (M7's full-screen spinner is gone).
-                        else -> ChatScreen(controller)
+                        else -> {
+                            ChatScreen(controller)
+                        }
                     }
                     // M9: full-screen HTML artifact preview (opened from an
                     // artifact card in the chat); covers everything while open.

app/shared/src/commonMain/kotlin/iris/data/ChannelStore.kt

@@ -71,6 +71,54 @@ class ChannelStore {
             _channels.value.filter { it.chatId != p.chatId && it.parentChatId != p.chatId }
     }
 
+    // ── Optimistic local updates (M-7) ────────────────────────────────────
+    //
+    // The gateway only broadcasts channel.created/renamed/deleted — there are
+    // no favorite/icon/automation/default events. So a toggle sent by THIS
+    // device would not update its own UI until a full channel.list re-fetch.
+    // These apply the change locally (optimistically); a later channel.list /
+    // hello.ack re-seed reconciles any divergence (e.g. a server rejection).
+
+    /** Toggle the cosmetic favorite flag locally. */
+    fun setFavorite(
+        chatId: String,
+        on: Boolean,
+    ) = update(chatId) { it.copy(favorite = on) }
+
+    /** Toggle the automation flag locally. */
+    fun setAutomation(
+        chatId: String,
+        on: Boolean,
+    ) = update(chatId) { it.copy(automation = on) }
+
+    /** Set the icon (base64) and/or avatar color locally; null clears a field. */
+    fun setIcon(
+        chatId: String,
+        icon: String?,
+        color: String?,
+    ) = update(chatId) { it.copy(icon = icon, color = color) }
+
+    /** Make [chatId] the default channel locally (clearing the previous one). */
+    fun setDefault(chatId: String) {
+        _channels.value =
+            sorted(
+                _channels.value.map {
+                    when {
+                        it.chatId == chatId -> it.copy(isDefault = true)
+                        it.isDefault -> it.copy(isDefault = false)
+                        else -> it
+                    }
+                },
+            )
+    }
+
+    private fun update(
+        chatId: String,
+        transform: (ChannelInfo) -> ChannelInfo,
+    ) {
+        _channels.value = sorted(_channels.value.map { if (it.chatId == chatId) transform(it) else it })
+    }
+
     private fun sorted(list: List<ChannelInfo>): List<ChannelInfo> =
         list.sortedWith(
             compareByDescending<ChannelInfo> { it.isDefault }

app/shared/src/commonMain/kotlin/iris/data/ChatDb.kt

@@ -16,9 +16,9 @@ import iris.protocol.IrisJson
  *   the controller) so every reconciled frame survives a process death.
  * - [metaGet] / [metaPut] hold small UI state (last-viewed lane).
  *
- * Only [MessageItem]s are persisted — tool cards, live streaming state and
+ * [MessageItem]s and [ToolItem]s are persisted; live streaming state and
  * local system notices are ephemeral. Rows are JSON payloads keyed by
- * (lane, id), so the schema does not drift with [MessageItem] fields.
+ * (lane, id), so the schema does not drift with the model fields.
  *
  * All access is synchronized: the debounced save collectors run on the
  * controller scope while [dispose] may flush from the UI thread.
@@ -32,29 +32,78 @@ class ChatDb(
 
     // ── messages ──────────────────────────────────────────────────────────
 
-    /** All persisted lanes (lane key -> messages ordered by ts). */
-    fun loadLanes(): Map<String, List<MessageItem>> =
+    /** All persisted lanes (lane key -> items: messages ordered by ts with
+     *  tool cards interleaved at their anchored position). */
+    fun loadLanes(): Map<String, List<ChatItem>> =
         synchronized(lock) {
-            val lanes = linkedMapOf<String, MutableList<MessageItem>>()
+            val messages = linkedMapOf<String, MutableList<ChatItem>>()
             for (row in db.cacheQueries.allMessages().executeAsList()) {
                 val item = decodeMessage(row.payload) ?: continue
-                lanes.getOrPut(row.lane) { mutableListOf() }.add(item)
+                messages.getOrPut(row.lane) { mutableListOf() }.add(item)
+            }
+            val tools = linkedMapOf<String, MutableList<ToolItem>>()
+            for (row in db.cacheQueries.allTools().executeAsList()) {
+                val item = decodeTool(row.payload) ?: continue
+                tools.getOrPut(row.lane) { mutableListOf() }.add(item)
+            }
+            (messages.keys + tools.keys).distinct().associateWith { lane ->
+                val items: MutableList<ChatItem> = messages[lane].orEmpty().toMutableList()
+                // Insert each tool card after its anchor message (the message
+                // it followed live). Cards sharing an anchor keep their seq
+                // order; a card whose anchor is gone (deleted message) falls
+                // to the end of the lane. The lastPos cache assumes anchors
+                // are monotonically non-decreasing per lane (true for the
+                // onToolStart anchor rule: last non-streaming message) — a
+                // tool anchored to an EARLIER message processed after a
+                // later-anchored one would be misplaced.
+                val lastPos = mutableMapOf<String, Int>()
+                for (tool in tools[lane].orEmpty()) {
+                    val anchor = tool.anchorId
+                    val pos =
+                        if (anchor == null) {
+                            -1
+                        } else {
+                            lastPos.getOrPut(anchor) { items.indexOfFirst { it.id == anchor } }
+                        }
+                    if (pos >= 0) {
+                        items.add(pos + 1, tool)
+                        if (anchor != null) lastPos[anchor] = pos + 1
+                    } else {
+                        items.add(tool)
+                    }
+                }
+                items
             }
-            lanes.mapValues { it.value.toList() }
         }
 
-    /** Replace the whole message cache with [lanes] (atomic snapshot). Tool
-     *  cards and local system notices are skipped (ephemeral). */
+    /** Replace the whole message + tool cache with [lanes] (atomic snapshot).
+     *  Local system notices are skipped (ephemeral). */
     fun saveLanes(lanes: Map<String, List<ChatItem>>) {
         synchronized(lock) {
             db.transaction {
                 db.cacheQueries.clearMessages()
+                db.cacheQueries.clearTools()
                 for ((lane, items) in lanes) {
+                    var toolSeq = 0
                     for (item in items) {
-                        if (item is MessageItem && !item.isSystem) {
+                        when (item) {
+                            is MessageItem -> {
+                                if (!item.isSystem) {
                                     db.cacheQueries.upsertMessage(lane, item.id, item.ts, json.encodeToString(item))
                                 }
                             }
+
+                            is ToolItem -> {
+                                db.cacheQueries.upsertTool(lane, item.id, toolSeq++.toLong(), json.encodeToString(item))
+                            }
+
+                            // Picker cards ride in the message table (JSON
+                            // payload; decodeMessage picks the type back out).
+                            is PickerItem -> {
+                                db.cacheQueries.upsertMessage(lane, item.id, item.ts, json.encodeToString(item))
+                            }
+                        }
+                    }
                 }
             }
         }
@@ -109,15 +158,29 @@ class ChatDb(
         synchronized(lock) {
             db.transaction {
                 db.cacheQueries.clearMessages()
+                db.cacheQueries.clearTools()
                 db.cacheQueries.clearChannels()
                 db.cacheQueries.clearMeta()
             }
         }
     }
 
-    private fun decodeMessage(payload: String): MessageItem? =
+    private fun decodeMessage(payload: String): ChatItem? =
         try {
             json.decodeFromString<MessageItem>(payload).sanitizeForRestore()
+        } catch (_: Exception) {
+            // Not a message payload — a picker card (MessageItem requires
+            // "role", PickerItem requires "title": the two never cross-decode).
+            try {
+                json.decodeFromString<PickerItem>(payload)
+            } catch (_: Exception) {
+                null
+            }
+        }
+
+    private fun decodeTool(payload: String): ToolItem? =
+        try {
+            json.decodeFromString<ToolItem>(payload).sanitizeForRestore()
         } catch (_: Exception) {
             null
         }
@@ -132,4 +195,9 @@ class ChatDb(
             pending = false,
             status = if (status == MsgStatus.Pending) MsgStatus.Failed else status,
         )
+
+    /** A restored tool card is never mid-flight: an open card (the process
+     *  died before tool.end) is closed as interrupted, mirroring
+     *  [ChatStore.finalizeInterrupted]. */
+    private fun ToolItem.sanitizeForRestore(): ToolItem = if (done) this else copy(done = true, ok = false)
 }

app/shared/src/commonMain/kotlin/iris/data/ChatStore.kt

@@ -8,6 +8,8 @@ import iris.protocol.MessagePayload
 import iris.protocol.MessageStartPayload
 import iris.protocol.MessageStopPayload
 import iris.protocol.MessageUpdatePayload
+import iris.protocol.PickerChoice
+import iris.protocol.PickerChoicePayload
 import iris.protocol.ROLE_ASSISTANT
 import iris.protocol.ROLE_USER
 import iris.protocol.RuntimeMeta
@@ -17,9 +19,13 @@ import iris.protocol.TYPE_MESSAGE
 import iris.protocol.TYPE_MESSAGE_START
 import iris.protocol.TYPE_MESSAGE_STOP
 import iris.protocol.TYPE_MESSAGE_UPDATE
+import iris.protocol.TYPE_PICKER_CHOICE
+import iris.protocol.TYPE_TODO_UPDATE
 import iris.protocol.TYPE_TOOL_END
 import iris.protocol.TYPE_TOOL_PROGRESS
 import iris.protocol.TYPE_TOOL_START
+import iris.protocol.TodoItem
+import iris.protocol.TodoUpdatePayload
 import iris.protocol.ToolEndPayload
 import iris.protocol.ToolProgressPayload
 import iris.protocol.ToolStartPayload
@@ -90,18 +96,42 @@ data class MediaItem(
     val localPath: String? = null,
 )
 
-/** A structured tool-activity card (spinner until [done]). */
+/** A structured tool-activity card (spinner until [done]).
+ *  [anchorId] is the id of the message this card follows in the lane (the
+ *  last non-streaming message when the tool started) — persisted with the
+ *  card so a restart restores it in its correct position (user message →
+ *  tool card → answer) instead of dropping it or appending it at the end.
+ *  [Serializable]: persisted as a JSON payload in the local cache (ChatDb). */
+@Serializable
 data class ToolItem(
     override val id: String,
     val index: Int,
     val name: String,
     val preview: String? = null,
     val args: JsonElement? = null,
+    /** Cosmetic per-tool glyph from the gateway (hermes get_tool_emoji);
+     *  null for unknown tools / older frames — the UI falls back to 🔧. */
+    val emoji: String? = null,
     val note: String? = null,
     val done: Boolean = false,
     val ok: Boolean = true,
     val duration: Double? = null,
     val outputPreview: String? = null,
+    val anchorId: String? = null,
+) : ChatItem
+
+/** An interactive choice picker card (one tap → one value), sent by
+ *  finite-choice slash commands (/reasoning, /fast, …) via `picker.choice`.
+ *  [selected] is the value the user tapped (null = still pending); the
+ *  server's reply arrives as a normal message afterwards.
+ *  [Serializable]: persisted as a JSON payload in the local cache (ChatDb). */
+@Serializable
+data class PickerItem(
+    override val id: String, // picker_id (unique; the picker.select key)
+    val title: String,
+    val choices: List<PickerChoice> = emptyList(),
+    val ts: Long = 0,
+    val selected: String? = null,
 ) : ChatItem
 
 class ChatStore {
@@ -113,8 +143,25 @@ class ChatStore {
     private val _currentLane = MutableStateFlow(DEFAULT_LANE)
     val currentLane: StateFlow<String> = _currentLane.asStateFlow()
 
-    private var localSeq = 0
-    private var toolSeq = 0
+    /** The agent's live todo list per lane (todo.update; last-write-wins).
+     *  Ephemeral: not persisted — the gateway re-sends a snapshot when the
+     *  app reconnects, and the next `todo` tool call refreshes it. */
+    private val _todos = MutableStateFlow<Map<String, List<TodoItem>>>(emptyMap())
+    val todos: StateFlow<Map<String, List<TodoItem>>> = _todos.asStateFlow()
+
+    /** Unread message count per lane (M8: unread indicator). Ephemeral
+     *  (in-memory): a process death resets it, and the `sync` delta re-counts
+     *  genuinely new messages on reconnect. A lane absent from the map has
+     *  no unread messages. */
+    private val _unread = MutableStateFlow<Map<String, Int>>(emptyMap())
+    val unread: StateFlow<Map<String, Int>> = _unread.asStateFlow()
+
+    /** Single lock for the lane/todo/unread maps: they are mutated from the
+     *  UI thread (addPending via send) and the frame-collector thread
+     *  (Dispatchers.Default). A non-atomic read-modify-write loses a frame
+     *  that lands between the read and the write (e.g. a streaming delta
+     *  dropped while the user sends). */
+    private val lock = Any()
 
     /** When false, `message.start`/`message.update` frames are ignored and each
      *  reply materializes as a single final message on `message.stop`
@@ -123,15 +170,16 @@ class ChatStore {
     var streamingEnabled: Boolean = true
 
     companion object {
-        const val DEFAULT_LANE = "android:default"
+        const val DEFAULT_LANE = "default"
 
         fun randomId(prefix: String): String = "${prefix}${Random.nextLong(1_000_000_000L, 9_999_999_999L)}"
     }
 
     // ── Lane helpers ──────────────────────────────────────────────────────
 
-    /** Lane key for a (chat, thread) pair. Uses `::` as the separator because
-     *  chat ids already contain a single `:` (e.g. `android:chan_1`). */
+    /** Lane key for a (chat, thread) pair. Uses `::` as the separator so a
+     *  thread lane can never collide with a chat id (chat ids are direct,
+     *  e.g. `chan_1`, and never contain `:`). */
     fun laneKey(
         chatId: String,
         threadId: String?,
@@ -156,10 +204,27 @@ class ChatStore {
         lane: String,
         transform: (List<ChatItem>) -> List<ChatItem>,
     ) {
+        synchronized(lock) {
             val map = _lanes.value.toMutableMap()
             map[lane] = transform(map[lane].orEmpty())
             _lanes.value = map
         }
+    }
+
+    /** Apply [transform] to every lane, writing back only when something
+     *  changed. Callers must hold [lock]. */
+    private fun mapLanes(transform: (List<ChatItem>) -> List<ChatItem>) {
+        val map = _lanes.value.toMutableMap()
+        var changed = false
+        for ((lane, list) in map) {
+            val updated = transform(list)
+            if (updated != list) {
+                map[lane] = updated
+                changed = true
+            }
+        }
+        if (changed) _lanes.value = map
+    }
 
     // ── Optimistic send ───────────────────────────────────────────────────
 
@@ -169,8 +234,11 @@ class ChatStore {
         lane: String,
         media: List<MediaItem> = emptyList(),
     ): String {
-        localSeq++
-        val id = "local_$localSeq"
+        // Process-unique id: the in-memory seq resets on every ChatStore
+        // creation, and failed sends are persisted — a restart would
+        // otherwise re-mint local_1 and collide with the restored bubble
+        // (duplicate list key).
+        val id = randomId("local")
         updateLane(lane) {
             it + MessageItem(id = id, role = ROLE_USER, text = text, ts = 0, pending = true, status = MsgStatus.Pending, media = media)
         }
@@ -184,8 +252,10 @@ class ChatStore {
         lane: String,
         text: String,
     ) {
-        localSeq++
-        val id = "sys_$localSeq"
+        // randomId (not a process-local seq): system messages are persisted,
+        // and a seq that resets on restart would re-mint sys_0 and collide
+        // with the restored one (upsert overwrite).
+        val id = randomId("sys")
         updateLane(lane) {
             it + MessageItem(id = id, role = "system", text = text, ts = nowMillis(), isSystem = true)
         }
@@ -204,8 +274,10 @@ class ChatStore {
             TYPE_TOOL_START -> onToolStart(lane, frame)
             TYPE_TOOL_PROGRESS -> onToolProgress(lane, frame)
             TYPE_TOOL_END -> onToolEnd(lane, frame)
+            TYPE_TODO_UPDATE -> onTodoUpdate(lane, frame)
             TYPE_COMMENTARY -> onCommentary(lane, frame)
             TYPE_MEDIA_OFFER -> onMediaOffer(lane, frame)
+            TYPE_PICKER_CHOICE -> onPickerChoice(lane, frame)
             else -> Unit
         }
     }
@@ -240,10 +312,14 @@ class ChatStore {
                     )
                 list.toMutableList().also { it[byId] = updated }
             } else if (p.role == ROLE_USER) {
-                // Replace the matching optimistic pending bubble (server echo).
+                // Replace the matching optimistic bubble (server echo). Also
+                // matches a FAILED bubble: the send may have arrived after
+                // its POST response was lost in a network drop — the echo is
+                // the proof of delivery, so reconcile instead of duplicating.
                 val pendingIdx =
                     list.indexOfLast {
-                        it is MessageItem && it.pending && it.role == ROLE_USER && it.text == p.text
+                        it is MessageItem && it.role == ROLE_USER && it.text == p.text &&
+                            (it.pending || it.status == MsgStatus.Failed)
                     }
                 if (pendingIdx >= 0) {
                     list.toMutableList().also {
@@ -302,16 +378,19 @@ class ChatStore {
         val (chatId, threadId) = parseLane(lane)
         if (threadId == null) return
         val flatLane = chatId
+        synchronized(lock) {
             val map = _lanes.value.toMutableMap()
             val flatList = map[flatLane].orEmpty()
             val idx =
                 flatList.indexOfLast {
-                it is MessageItem && it.pending && it.role == ROLE_USER && it.text == p.text
+                    it is MessageItem && it.role == ROLE_USER && it.text == p.text &&
+                        (it.pending || it.status == MsgStatus.Failed)
                 }
-        if (idx < 0) return
+            if (idx < 0) return@synchronized
             map[flatLane] = flatList.toMutableList().also { it.removeAt(idx) }
             _lanes.value = map
         }
+    }
 
     /** Merge server media refs into existing items, keeping local paths. */
     private fun mergeMedia(
@@ -418,9 +497,17 @@ class ChatStore {
         frame: Frame,
     ) {
         val p = frame.payloadAs<ToolStartPayload>() ?: return
-        toolSeq++
-        val id = "tool_$toolSeq"
+        // Process-unique id: the in-memory seq resets on every ChatStore
+        // creation, and cards are persisted — a restart would otherwise
+        // re-mint tool_1 and collide with the restored card (duplicate list
+        // key, upsert overwrite). onToolProgress/onToolEnd match by index,
+        // so non-sequential ids are safe.
+        val id = randomId("tool")
         updateLane(lane) { list ->
+            // Anchor the card to the message it follows: the last non-streaming
+            // message (a live streaming bubble is the answer that arrives AFTER
+            // the tool, so it is skipped). Restored with the card on restart.
+            val anchorId = list.lastOrNull { it is MessageItem && !it.streaming }?.id
             list +
                 ToolItem(
                     id = id,
@@ -428,6 +515,8 @@ class ChatStore {
                     name = p.name,
                     preview = p.preview,
                     args = p.args,
+                    emoji = p.emoji,
+                    anchorId = anchorId,
                 )
         }
     }
@@ -470,6 +559,20 @@ class ChatStore {
         }
     }
 
+    // ── todo.update (the agent's live todo list, last-write-wins) ─────────
+
+    private fun onTodoUpdate(
+        lane: String,
+        frame: Frame,
+    ) {
+        val p = frame.payloadAs<TodoUpdatePayload>() ?: return
+        synchronized(lock) {
+            val map = _todos.value.toMutableMap()
+            if (p.todos.isEmpty()) map.remove(lane) else map[lane] = p.todos
+            _todos.value = map
+        }
+    }
+
     // ── commentary (dimmed interim beat) ──────────────────────────────────
 
     private fun onCommentary(
@@ -477,13 +580,12 @@ class ChatStore {
         frame: Frame,
     ) {
         val p = frame.payloadAs<CommentaryPayload>() ?: return
-        // Gateway lifecycle notices (restart / shutdown / online) are rendered
-        // as a centered system notice by the controller, on the down/up state
-        // transition. The server also emits the "restarting" notice as a
-        // commentary frame (and the sync catch-up can replay it *after* the
-        // local "online" notice), so drop it here: the app is the source of
-        // truth for these notices, which keeps the order (restarting → online)
-        // and prevents duplicates.
+        // Gateway lifecycle notices (restart / shutdown / online) are the
+        // controller's business: it renders the "restarting" / "online" pair
+        // as centered system notices on the down/up state transitions (gated
+        // on the gateway's status{restarting} frame). The server also emits
+        // these as commentary frames (and the sync catch-up can replay them
+        // out of order), so drop them here to prevent duplicates.
         if (isGatewayLifecycleNotice(p.text)) return
         updateLane(lane) { list ->
             if (list.any { it.id == p.messageId }) {
@@ -549,10 +651,8 @@ class ChatStore {
         mediaId: String,
         localPath: String,
     ) {
-        val map = _lanes.value.toMutableMap()
-        var changed = false
-        for ((lane, list) in map) {
-            val updated =
+        synchronized(lock) {
+            mapLanes { list ->
                 list.map { item ->
                     if (item is MessageItem) {
                         item.copy(
@@ -565,20 +665,84 @@ class ChatStore {
                         item
                     }
                 }
-            if (updated != list) {
-                map[lane] = updated
-                changed = true
             }
         }
-        if (changed) _lanes.value = map
     }
 
+    // ── picker.choice (interactive slash-command menu) ──────────────────────
+
+    /**
+     * Append a choice-picker card to [lane]. Idempotent by picker id: the
+     * frame is outboxed, so a sync replay of an already-rendered picker is a
+     * no-op (a locally resolved card is never re-opened by a replay).
+     */
+    private fun onPickerChoice(
+        lane: String,
+        frame: Frame,
+    ) {
+        val p = frame.payloadAs<PickerChoicePayload>() ?: return
+        updateLane(lane) { list ->
+            if (list.any { it.id == p.pickerId }) {
+                list
+            } else {
+                list +
+                    PickerItem(
+                        id = p.pickerId,
+                        title = p.title,
+                        choices = p.choices,
+                        ts = nowMillis(),
+                    )
+            }
+        }
+    }
+
+    /** Mark the picker [pickerId] as answered with [value] (all lanes; the
+     *  picker id is unique). Optimistic: the server's reply message follows
+     *  as a normal message; an expired picker (gateway restart) simply never
+     *  replies. */
+    fun resolvePicker(
+        pickerId: String,
+        value: String,
+    ) {
+        synchronized(lock) {
+            mapLanes { list ->
+                list.map { item ->
+                    if (item is PickerItem && item.id == pickerId && item.selected == null) {
+                        item.copy(selected = value)
+                    } else {
+                        item
+                    }
+                }
+            }
+        }
+    }
+
+    /** M8: a new message arrived in [lane] that the user hasn't seen —
+     *  increment its unread count. */
+    fun markUnread(lane: String) {
+        synchronized(lock) {
+            val map = _unread.value.toMutableMap()
+            map[lane] = (map[lane] ?: 0) + 1
+            _unread.value = map
+        }
+    }
+
+    /** M8: the user is now viewing [lane]'s newest content — clear its unread
+     *  count. Idempotent (a lane with no unread is a no-op). */
+    fun markLaneRead(lane: String) {
+        synchronized(lock) {
+            val map = _unread.value.toMutableMap()
+            if (map.remove(lane) != null) _unread.value = map
+        }
+    }
+
+    /** M8: unread count for a single lane (0 when none). */
+    fun unreadFor(lane: String): Int = _unread.value[lane] ?: 0
+
     /** M5: mark the user message [messageId] as read (read.receipt). */
     fun markRead(messageId: String) {
-        val map = _lanes.value.toMutableMap()
-        var changed = false
-        for ((lane, list) in map) {
-            val updated =
+        synchronized(lock) {
+            mapLanes { list ->
                 list.map { item ->
                     if (item is MessageItem && item.id == messageId && item.role == ROLE_USER &&
                         item.status != MsgStatus.Read
@@ -588,12 +752,27 @@ class ChatStore {
                         item
                     }
                 }
-            if (updated != list) {
-                map[lane] = updated
-                changed = true
             }
         }
-        if (changed) _lanes.value = map
+    }
+
+    /** M7: mark a single user message as failed (the send never reached the
+     *  gateway — network drop, or the gateway rejected it); tap the bubble
+     *  to retry. */
+    fun failMessage(messageId: String) {
+        synchronized(lock) {
+            mapLanes { list ->
+                list.map { item ->
+                    if (item is MessageItem && item.id == messageId && item.role == ROLE_USER &&
+                        item.status != MsgStatus.Failed
+                    ) {
+                        item.copy(pending = false, status = MsgStatus.Failed)
+                    } else {
+                        item
+                    }
+                }
+            }
+        }
     }
 
     /**
@@ -604,17 +783,10 @@ class ChatStore {
      */
     fun removeMessages(messageIds: Set<String>) {
         if (messageIds.isEmpty()) return
-        val map = _lanes.value.toMutableMap()
-        var changed = false
-        for ((lane, list) in map) {
-            val updated = list.filterNot { it.id in messageIds }
-            if (updated != list) {
-                map[lane] = updated
-                changed = true
+        synchronized(lock) {
+            mapLanes { list -> list.filterNot { it.id in messageIds } }
         }
     }
-        if (changed) _lanes.value = map
-    }
 
     /**
      * Finalize in-flight items after the gateway goes away (restart / network
@@ -624,30 +796,23 @@ class ChatStore {
      * message.stop) will never arrive to close them.
      */
     fun finalizeInterrupted() {
-        val map = _lanes.value.toMutableMap()
-        var changed = false
-        for ((lane, list) in map) {
-            val updated =
+        synchronized(lock) {
+            mapLanes { list ->
                 list.map { item ->
                     when (item) {
                         is ToolItem -> if (!item.done) item.copy(done = true, ok = false) else item
                         is MessageItem -> if (item.streaming) item.copy(streaming = false) else item
+                        is PickerItem -> item
                     }
                 }
-            if (updated != list) {
-                map[lane] = updated
-                changed = true
             }
         }
-        if (changed) _lanes.value = map
     }
 
     /** M7: mark all pending user messages as failed (gateway error frame). */
     fun failPending() {
-        val map = _lanes.value.toMutableMap()
-        var changed = false
-        for ((lane, list) in map) {
-            val updated =
+        synchronized(lock) {
+            mapLanes { list ->
                 list.map { item ->
                     if (item is MessageItem && item.role == ROLE_USER && item.status == MsgStatus.Pending) {
                         item.copy(pending = false, status = MsgStatus.Failed)
@@ -655,12 +820,8 @@ class ChatStore {
                         item
                     }
                 }
-            if (updated != list) {
-                map[lane] = updated
-                changed = true
             }
         }
-        if (changed) _lanes.value = map
     }
 
     /** M7: re-arm a failed user message for a retry send. */
@@ -683,9 +844,11 @@ class ChatStore {
      * Load a history page into [lane] (oldest → newest). The history is the
      * authoritative full list of final messages for the lane; it replaces the
      * lane's final messages and preserves non-final items (tool cards, live
-     * streaming bubbles, commentary) that are not part of the history. Used to
-     * restore the view on first open of a chat / after a process death, where
-     * the in-memory store is empty and the `sync` delta does not cover older
+     * streaming bubbles, commentary) that are not part of the history. Tool
+     * cards sort at their anchor message's position, so a history refresh
+     * keeps them between the user message and the answer. Used to restore the
+     * view on first open of a chat / after a process death, where the
+     * in-memory store is empty and the `sync` delta does not cover older
      * messages.
      */
     fun loadHistory(
@@ -694,12 +857,49 @@ class ChatStore {
     ) {
         updateLane(lane) { list ->
             val historyIds = messages.map { it.id }.toSet()
+            // A local FAILED bubble whose text+media matches a history user
+            // message was actually delivered (the POST response was lost in
+            // the network drop) — the history copy is authoritative, so drop
+            // the local duplicate instead of showing the message twice.
+            val historyUser = messages.filter { it.role == ROLE_USER }
             val preserved =
                 list.filter { item ->
-                    item !is MessageItem || item.id !in historyIds
+                    if (item !is MessageItem) return@filter true
+                    if (item.id in historyIds) return@filter false
+                    if (item.role == ROLE_USER && item.status == MsgStatus.Failed &&
+                        historyUser.any {
+                            it.text == item.text &&
+                                it.media.map { m -> m.mediaId } == item.media.map { m -> m.mediaId }
+                        }
+                    ) {
+                        return@filter false
+                    }
+                    true
+                }
+            // ts of every item in the current lane: ts-less items (commentary,
+            // tool cards) inherit the ts of the item before them, so a tool
+            // card anchored to a commentary still sorts at the right place.
+            val tsOf = mutableMapOf<String, Long>()
+            var lastTs = 0L
+            for (item in list) {
+                val t = (item as? MessageItem)?.ts?.takeIf { it > 0 } ?: lastTs
+                if (t > 0) lastTs = t
+                tsOf[item.id] = t
+            }
+            // History is authoritative for the ts of its messages.
+            for (m in messages) {
+                if (m.ts > 0) tsOf[m.id] = m.ts
             }
             (messages + preserved).sortedBy { item ->
-                (item as? MessageItem)?.ts?.takeIf { it > 0 } ?: Long.MAX_VALUE
+                when (item) {
+                    is MessageItem -> item.ts.takeIf { it > 0 } ?: Long.MAX_VALUE
+
+                    // A resolved ts of 0 means the anchor itself is ts-less
+                    // (lane start) — sort with it (end) instead of to the top.
+                    is ToolItem -> tsOf[item.anchorId]?.takeIf { it > 0 } ?: Long.MAX_VALUE
+
+                    is PickerItem -> item.ts.takeIf { it > 0 } ?: Long.MAX_VALUE
+                }
             }
         }
     }
@@ -711,12 +911,29 @@ class ChatStore {
      * delta and the `history` refresh reconcile the cache on connect.
      * No-op when [lanes] is empty (first launch).
      */
-    fun loadFromCache(lanes: Map<String, List<MessageItem>>) {
+    fun loadFromCache(lanes: Map<String, List<ChatItem>>) {
         if (lanes.isEmpty()) return
-        _lanes.value = lanes
+        synchronized(lock) {
+            // The cache is ordered by (ts, id); pending/failed sends are
+            // persisted with ts = 0, so the DB returns them FIRST — but in
+            // memory addPending appends them to the END of the lane. Move the
+            // ts=0 message bubbles to the end (preserving their relative
+            // order); everything else keeps its stored order, so a restored
+            // lane looks like the live one until loadHistory re-sorts it
+            // after a connect.
+            _lanes.value =
+                lanes.mapValues { (_, items) ->
+                    val (zeroTs, rest) = items.partition { (it as? MessageItem)?.ts == 0L }
+                    rest + zeroTs
+                }
+        }
     }
 
     fun clear() {
+        synchronized(lock) {
             _lanes.value = emptyMap()
+            _unread.value = emptyMap()
+            _todos.value = emptyMap()
+        }
     }
 }

app/shared/src/commonMain/kotlin/iris/data/SecureStore.kt

@@ -2,16 +2,26 @@ package iris.data
 
 /**
  * Pairing settings storage. The token is a secret: platform actuals keep it
- * in secure storage (EncryptedSharedPreferences on Android — M5; plain
- * SharedPreferences for M1 dev, file on desktop).
+ * in secure storage (EncryptedSharedPreferences on Android, OS keyring or an
+ * encrypted file on desktop).
  */
 interface SecureStore {
-    /** ws(s)://host:port/ws */
+    /** http(s)://host:port (legacy ws(s):// URLs are still accepted) */
     var serverUrl: String
 
-    /** ANDROID_TOKEN presented in the hello frame. */
+    /** IRIS_TOKEN presented in the auth header (bootstrap / fallback). */
     var token: String
 
+    /** Per-device token minted at pairing (hello.ack ``device_token``,
+     *  docs/09 §9.3). Presented INSTEAD of [token] when non-empty; the
+     *  gateway can revoke it per device. Empty until the first hello.ack. */
+    var deviceToken: String
+
+    /** SHA-256 fingerprint (colon-separated pairs) of the gateway's TLS
+     *  certificate, confirmed by the user on first pair (docs/09 §9.4).
+     *  Empty = nothing pinned (CA-signed certs need no pin). */
+    var pinnedCertFingerprint: String
+
     /** Stable app-generated device id (persisted). */
     val deviceId: String
 
@@ -44,6 +54,10 @@ interface SecureStore {
     /** UI setting: stream assistant replies live (token by token). */
     var streamingEnabled: Boolean
 
+    /** UI setting: streaming smoothness — seconds between visible text
+     *  updates while streaming (0.2–0.8; lower = faster/smoother). */
+    var streamSmoothness: Float
+
     /** UI setting: auto-collapse long reasoning blocks in the chat view. */
     var reasoningAutoCollapse: Boolean
 

app/shared/src/commonMain/kotlin/iris/media/FileSource.kt

@@ -1,10 +0,0 @@
-package iris.media
-
-/** A readable local file (expect/actual; JVM impl in jvmMain). */
-expect class FileSource(path: String) : AutoCloseable {
-    /** Total size in bytes. */
-    fun size(): Long
-
-    /** Read up to [buf.size] bytes into [buf]; returns bytes read or -1 at EOF. */
-    fun read(buf: ByteArray): Int
-}

app/shared/src/commonMain/kotlin/iris/media/Mime.kt

@@ -6,7 +6,8 @@ import iris.protocol.KIND_IMAGE
 import iris.protocol.KIND_VIDEO
 
 /** Map a MIME type to a media kind (docs/07 §7.1). */
-fun kindFromMime(mime: String): String = when {
+fun kindFromMime(mime: String): String =
+    when {
         mime.startsWith("image/") -> KIND_IMAGE
         mime.startsWith("video/") -> KIND_VIDEO
         mime.startsWith("audio/") -> KIND_AUDIO
@@ -14,7 +15,8 @@ fun kindFromMime(mime: String): String = when {
     }
 
 /** Best-effort file extension for a MIME type (cache file naming). */
-fun extForMime(mime: String): String = when {
+fun extForMime(mime: String): String =
+    when {
         mime == "image/jpeg" -> ".jpg"
         mime == "image/png" -> ".png"
         mime == "image/webp" -> ".webp"
@@ -35,3 +37,12 @@ fun extForMime(mime: String): String = when {
         mime == "text/plain" -> ".txt"
         else -> ".bin"
     }
+
+/**
+ * Validate a server-provided media id before it is used in a file path or a
+ * `GET /v1/media/{id}` URL (M-2 / S-1). The id comes from the gateway's
+ * `media.offer` frame; a value like `../../x` would write outside the media
+ * directory and break the pull URL. Only a conservative token charset is
+ * accepted.
+ */
+fun isValidMediaId(id: String): Boolean = id.length in 1..128 && id.all { it.isLetterOrDigit() || it == '_' || it == '-' }

app/shared/src/commonMain/kotlin/iris/net/GatewayClient.kt

@@ -1,33 +1,19 @@
 package iris.net
 
 import iris.data.SecureStore
-import iris.media.FileSource
-import iris.media.Sha256
 import iris.protocol.ChannelInfo
-import iris.protocol.ErrorPayload
 import iris.protocol.Frame
 import iris.protocol.HelloAckPayload
-import iris.protocol.IrisJson
-import iris.protocol.MediaPullEndPayload
-import iris.protocol.MediaUploadAckPayload
 import iris.protocol.ServerCaps
-import iris.protocol.TYPE_ERROR
-import iris.protocol.TYPE_HELLO_ACK
-import iris.protocol.TYPE_MEDIA_PULL_END
-import iris.protocol.TYPE_MEDIA_UPLOAD_ACK
-import iris.protocol.TYPE_PONG
-import iris.protocol.helloFrame
-import iris.protocol.mediaPullFrame
-import iris.protocol.mediaUploadEndFrame
-import iris.protocol.mediaUploadStartFrame
 import iris.protocol.messageSendFrame
-import iris.protocol.pingFrame
 import iris.protocol.syncFrame
 import iris.util.IrisLog
+import iris.util.nowMillis
+import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.CompletableDeferred
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Job
-import kotlinx.coroutines.channels.Channel
+import kotlinx.coroutines.coroutineScope
 import kotlinx.coroutines.currentCoroutineContext
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.MutableSharedFlow
@@ -40,28 +26,23 @@ import kotlinx.coroutines.isActive
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
-import kotlinx.coroutines.withTimeout
 import kotlinx.coroutines.withTimeoutOrNull
 import okhttp3.OkHttpClient
-import okhttp3.Request
-import okhttp3.Response
-import okhttp3.WebSocket
-import okhttp3.WebSocketListener
-import okio.ByteString
-import okio.ByteString.Companion.toByteString
 import java.util.concurrent.TimeUnit
 import kotlin.random.Random
-import kotlin.time.TimeMark
-import kotlin.time.TimeSource
 
 /**
- * OkHttp WebSocket client for the hermes android gateway (docs/10 §10.3).
+ * HTTP client for the hermes iris gateway (docs/19).
  *
- * - connect + hello (real auth leg), hello.ack
+ * HTTP is the only transport: send via `POST /v1/frame`, receive over SSE
+ * `/v1/events` (long-poll fallback), media via `POST/GET /v1/media`.
+ *
+ * - connect: health probe + SSE hello (the HTTP hello.ack)
  * - reconnect: exponential backoff + jitter; re-hello on every (re)connect
- * - heartbeat: app-level ping every 20s; reap after ~60s of silence
- * - events: server frames (minus hello.ack) on [events]
- * - request/response correlation by id (M2+ consumers)
+ * - events: server frames on [events]
+ * - correlation: the POST body carries the synchronous reply (e.g. read
+ *   receipt, errors); everything else arrives on the event stream, and the
+ *   app reconciles by frame id (docs/19 §19.7)
  */
 class GatewayClient(
     private val scope: CoroutineScope,
@@ -86,6 +67,13 @@ class GatewayClient(
         data class AuthFailed(
             val message: String,
         ) : State
+
+        /** The gateway's TLS certificate is untrusted and doesn't match the
+         *  pinned fingerprint (docs/09 §9.4). Terminal: the connect loop
+         *  stops and the UI asks the user to confirm the fingerprint. */
+        data class TlsConfirmRequired(
+            val fingerprint: String,
+        ) : State
     }
 
     private val _state = MutableStateFlow<State>(State.Disconnected)
@@ -98,48 +86,79 @@ class GatewayClient(
     private val _events = MutableSharedFlow<Frame>(extraBufferCapacity = 128)
     val events: SharedFlow<Frame> = _events.asSharedFlow()
 
+    // TLS: the pinning trust manager wraps the platform default (CA-signed
+    // certs behave as before); a self-signed gateway cert is accepted only
+    // after the user confirms its fingerprint (docs/09 §9.4). The pin is
+    // read live from the store so a fresh confirm takes effect without
+    // rebuilding the client.
+    private val pinningTm = PinningTrustManager { store.pinnedCertFingerprint }
+
     private val client: OkHttpClient =
         OkHttpClient
             .Builder()
             .pingInterval(20, TimeUnit.SECONDS)
+            .sslSocketFactory(pinningSslSocketFactory(pinningTm), pinningTm)
             .build()
 
     private var connectJob: Job? = null
-    private var socket: WebSocket? = null
     private var nextRequestId = 1
+
+    // Incremented from the SSE callback thread (onHttpHello) and the UI
+    // thread (sendFrame/sendMessage) — keep it atomic or ids collide and
+    // request/response correlation breaks.
+    private fun nextId(): Int = synchronized(this) { nextRequestId++ }
+
+    // Written by poke() (UI thread) and the connect loop (Default).
+    @Volatile
     private var attempt = 0
 
+    // Set by poke() (app returned to the foreground): the connect loop's
+    // backoff waits in 500 ms slices and re-probes immediately when set.
+    @Volatile
+    private var wakeRequested = false
+
     // True once a connection has been established this session; reset by
     // start(). Drives Connecting (first dial) vs Reconnecting (redial after a
     // drop) so the UI can show the right status without a blocking screen.
     private var hasConnected = false
-    private var lastLiveness: TimeMark = TimeSource.Monotonic.markNow()
-    private val pending = mutableMapOf<Int, CompletableDeferred<Frame>>()
 
-    // M4: binary frames (media upload chunks / pull stream) have no per-frame
-    // id, so at most one binary session is active per socket. The gateway
-    // allows one upload per connection; pull is request/response.
-    private sealed interface BinarySession {
-        data class Pulling(
-            val requestId: Int,
-            val chunks: Channel<ByteArray>,
-            val end: CompletableDeferred<Frame>,
-        ) : BinarySession
-    }
+    // HTTP leg: [http] is created lazily from the stored URL; [httpCursor] is
+    // the resume cursor (SSE id / outbox high-water mark), updated from the
+    // SSE/poll callback threads.
+    private var http: HttpGateway? = null
 
-    private var binarySession: BinarySession? = null
+    @Volatile
+    private var httpCursor: Long = 0
+    private var sseFailures = 0
+    private var usingLongPoll = false
+
+    // Last hello.ack payload — used to restore State.Connected after a
+    // reconnect state race in the connect loop. Written by the SSE callback
+    // thread, read by the long-poll loop.
+    @Volatile
+    private var lastAck: HelloAckPayload? = null
+
+    // Epoch ms of the last frame delivered by the receive stream (SSE or
+    // long-poll). The watchdog uses this to detect a STALE stream: a live
+    // connection (heartbeats / poll answers keep it open, so the read timeout
+    // never fires) that has stopped delivering frames — the state a gateway
+    // restart can leave the app in, where sent messages sit at "sending…"
+    // because their echo is never delivered (issue #6). Set when the receive
+    // loop (re)starts so the first window isn't treated as stale.
+    @Volatile
+    private var lastFrameMs: Long = 0L
 
     /**
-     * Fired promptly (on the WS thread) the moment `hello.ack` is received —
-     * on every (re)connect. Used for time-critical work that must not wait for
-     * the state collector, which can be starved for seconds during app startup
-     * (Dispatchers.Default) and would push a history request past a flaky
-     * network's window. Set before [start].
+     * Fired promptly the moment the SSE hello (hello.ack) is received — on
+     * every (re)connect. Used for time-critical work that must not wait for
+     * the state collector, which can be starved for seconds during app
+     * startup (Dispatchers.Default) and would push a history request past a
+     * flaky network's window. Set before [start].
      */
     var onHelloAck: ((State.Connected) -> Unit)? = null
 
-    // M4: only one pull may be in flight at a time (binarySession is a single
-    // slot). Serialize concurrent offers so their byte streams don't interleave.
+    // Only one pull may be in flight at a time. Serialize concurrent offers so
+    // their byte streams don't interleave.
     private val pullMutex = Mutex()
 
     // ── Lifecycle ─────────────────────────────────────────────────────────
@@ -152,13 +171,34 @@ class GatewayClient(
         connectJob = scope.launch { connectLoop() }
     }
 
-    /** Stop the connect loop and close the socket. */
+    /**
+     * Stop the connect loop and reset the HTTP leg. Without the reset, a
+     * re-pair to a *different* gateway would keep using the cached
+     * [HttpGateway] (old URL, old token, old resume cursor) until the process
+     * is killed.
+     */
     fun stop() {
         connectJob?.cancel()
         connectJob = null
-        socket?.close(1000, "client shutdown")
-        socket = null
         _state.value = State.Disconnected
+        http?.close()
+        http = null
+        httpCursor = 0
+        sseFailures = 0
+        usingLongPoll = false
+        lastAck = null
+    }
+
+    /**
+     * Call when the app returns to the foreground: if the connect loop is
+     * between attempts (backing off after failed health probes — up to 30 s),
+     * wake it so it re-probes immediately instead of making the user wait out
+     * the backoff with a "Connecting…" banner. No-op while connected.
+     */
+    fun poke() {
+        if (_state.value is State.Connected) return
+        attempt = 0
+        wakeRequested = true
     }
 
     /** Re-pair: stop, then start fresh (used after saving new settings). */
@@ -170,223 +210,294 @@ class GatewayClient(
     private suspend fun connectLoop() {
         while (currentCoroutineContext().isActive) {
             val url = store.serverUrl.trim()
-            val token = store.token
+            // Per-device token when the gateway minted one (docs/09 §9.3),
+            // else the shared IRIS_TOKEN (bootstrap).
+            val token = store.deviceToken.ifBlank { store.token }
             if (url.isBlank() || token.isBlank()) {
                 _state.value = State.Disconnected
                 return
             }
             _state.value = if (hasConnected) State.Reconnecting else State.Connecting
-            val dial = dial(url, token)
-            when (val result = dial.result) {
-                is DialResult.AuthFailed -> {
-                    _state.value = State.AuthFailed(result.message)
-                    dial.socket.close(1000, "auth failed")
-                    return
-                }
-
-                DialResult.Connected -> {
-                    hasConnected = true
-                    attempt = 0
-                    lastLiveness = TimeSource.Monotonic.markNow()
-                    dial.closed.await()
-                    if (!currentCoroutineContext().isActive) return
-                    // socket dropped -> loop again (Reconnecting)
-                }
-
-                is DialResult.Failed -> {
-                    attempt++
-                    delay(backoffMs(attempt))
-                }
-            }
-        }
-    }
-
-    // ── Dial (one connect + hello) ────────────────────────────────────────
-
-    private sealed interface DialResult {
-        data object Connected : DialResult
-
-        data class AuthFailed(
-            val message: String,
-        ) : DialResult
-
-        data class Failed(
-            val message: String,
-        ) : DialResult
-    }
-
-    private data class Dial(
-        val result: DialResult,
-        val socket: WebSocket,
-        val closed: CompletableDeferred<Unit>,
-    )
-
-    private suspend fun dial(
-        url: String,
-        token: String,
-    ): Dial {
-        val closed = CompletableDeferred<Unit>()
-        val helloAck = CompletableDeferred<HelloAckPayload>()
-        val authError = CompletableDeferred<String>()
-        val fail = CompletableDeferred<String>()
-
-        val request = Request.Builder().url(url).build()
-        val ws =
-            client.newWebSocket(
-                request,
-                object : WebSocketListener() {
-                    override fun onOpen(
-                        webSocket: WebSocket,
-                        response: Response,
-                    ) {
-                        IrisLog.d("ws open (${response.code})")
-                        webSocket.send(
-                            helloFrame(
-                                token = token,
-                                deviceId = store.deviceId,
-                                deviceName = store.deviceName,
-                                fcmToken = store.fcmToken.ifBlank { null },
-                                ntfyTopic = store.ntfyTopic.ifBlank { null },
-                            ).toWire(),
-                        )
-                    }
-
-                    override fun onMessage(
-                        webSocket: WebSocket,
-                        text: String,
-                    ) {
-                        lastLiveness = TimeSource.Monotonic.markNow()
-                        val frame =
+            val gw = httpGateway() ?: continue
+            // Health probe: if the gateway is alive, open the SSE receive loop
+            // (which delivers the hello.ack). Otherwise back off and retry.
+            val healthOk =
                 try {
-                                IrisJson.instance.decodeFromString(Frame.serializer(), text)
+                    gw.health()
                 } catch (e: Exception) {
-                                // A dropped frame is silent data loss — log it (the
-                                // first bytes hint at which frame it was).
-                                IrisLog.e("frame decode failed (${text.length}B): $e :: ${text.take(120)}")
-                                return
+                    if (failTls(e)) return
+                    false
                 }
-                        when (frame.type) {
-                            TYPE_HELLO_ACK -> {
-                                val ack = frame.payloadAs<HelloAckPayload>()
-                                if (ack != null) helloAck.complete(ack)
+            if (!healthOk) {
+                attempt++
+                backoffOrWake(backoffMs(attempt))
+                continue
             }
-
-                            TYPE_ERROR -> {
-                                val err = frame.payloadAs<ErrorPayload>()
-                                if (!authError.isCompleted) authError.complete(err?.message ?: "auth failed")
-                                // M7: post-connect error frames are app events, not
-                                // auth failures — let the controller react.
-                                _events.tryEmit(frame)
-                            }
-
-                            TYPE_PONG -> {
-                                Unit
-                            }
-
-                            else -> {
-                                _events.tryEmit(frame)
-                                frame.id?.let { id ->
-                                    pending[id]?.complete(frame)
-                                    // M4: terminal frame of a pull stream — close
-                                    // the chunk channel so the pull loop exits.
-                                    if (frame.type == TYPE_MEDIA_PULL_END) {
-                                        (binarySession as? BinarySession.Pulling)?.let {
-                                            it.chunks.close()
-                                            binarySession = null
-                                        }
-                                    }
-                                }
-                            }
-                        }
-                    }
-
-                    override fun onMessage(
-                        webSocket: WebSocket,
-                        bytes: ByteString,
-                    ) {
-                        lastLiveness = TimeSource.Monotonic.markNow()
-                        // M4: binary frames belong to the active pull stream
-                        // (uploads are outbound; stray inbound chunks are dropped).
-                        (binarySession as? BinarySession.Pulling)
-                            ?.chunks
-                            ?.trySend(bytes.toByteArray())
-                    }
-
-                    override fun onClosed(
-                        webSocket: WebSocket,
-                        code: Int,
-                        reason: String,
-                    ) {
-                        IrisLog.w("ws closed code=$code reason=\"$reason\"")
-                        closed.complete(Unit)
-                    }
-
-                    override fun onFailure(
-                        webSocket: WebSocket,
-                        t: Throwable,
-                        response: Response?,
-                    ) {
-                        IrisLog.e("ws failure: ${t.javaClass.simpleName}: ${t.message} (http=${response?.code})")
-                        fail.complete(t.message ?: "connection failed")
-                        closed.complete(Unit)
-                    }
-                },
+            attempt = 0
+            hasConnected = true
+            sseFailures = 0
+            usingLongPoll = false
+            httpCursor = store.syncCursor
+            lastFrameMs = nowMs()
+            // Provisional Connected state (previous caps/channels) until the
+            // SSE hello arrives with the real ones.
+            val prev = _state.value
+            _state.value =
+                State.Connected(
+                    caps = (prev as? State.Connected)?.caps ?: ServerCaps(),
+                    channels = (prev as? State.Connected)?.channels ?: emptyList(),
+                    lastPushedCursor = (prev as? State.Connected)?.lastPushedCursor ?: 0,
                 )
-        socket = ws
+            // Run the HTTP receive loop (SSE/long-poll) until cancelled.
+            coroutineScope {
+                val receiveJob = launch { httpReceiveLoop(gw) }
+                // Dead-stream watchdog: the SSE read timeout (45 s) is the
+                // only in-stream dead-connection detector; probe /v1/health
+                // in parallel so a dropped network flips the state to
+                // Reconnecting within ~20 s (2 failed probes) instead of 45,
+                // and a stuck stream can't keep a stale "Connected".
+                var probeFailures = 0
+                while (receiveJob.isActive) {
+                    delay(10_000)
+                    val ok =
+                        try {
+                            gw.health()
+                        } catch (e: Exception) {
+                            if (failTls(e)) {
+                                receiveJob.cancel()
+                                break
+                            }
+                            false
+                        }
+                    probeFailures = if (ok) 0 else probeFailures + 1
+                    if (probeFailures >= 2) {
+                        receiveJob.cancel()
+                        break
+                    }
+                    // Stale-stream watchdog: the gateway is up (health ok) but
+                    // the receive stream has delivered no frames for a while —
+                    // a live-but-dead connection the read timeout can't see.
+                    // Force a fresh (re)connect so parked frames (e.g. our own
+                    // echo) are re-delivered from the outbox.
+                    if (lastFrameMs > 0L && nowMs() - lastFrameMs > STALE_STREAM_TIMEOUT_MS) {
+                        IrisLog.w("receive stream stale (no frames for ${STALE_STREAM_TIMEOUT_MS}ms); forcing reconnect")
+                        receiveJob.cancel()
+                        break
+                    }
+                }
+                receiveJob.join()
+            }
+            // Terminal failures: don't redial with the same bad token / the
+            // same untrusted certificate (the UI asks the user to act).
+            if (_state.value is State.AuthFailed || _state.value is State.TlsConfirmRequired) return
+        }
+    }
 
-        val winner = CompletableDeferred<DialResult>()
-        helloAck.invokeOnCompletion { e ->
-            if (e == null) {
-                val ack = helloAck.getCompleted()
+    // ── HTTP receive leg ──────────────────────────────────────────────────
+
+    /** Lazily build the HTTP client from the stored URL. Synchronized: two
+     *  threads racing the check-then-create would leak a gateway (and its
+     *  OkHttp clients). */
+    private fun httpGateway(): HttpGateway? =
+        synchronized(this) {
+            val url = store.serverUrl.trim()
+            val token = store.deviceToken.ifBlank { store.token }
+            if (url.isBlank() || token.isBlank()) return@synchronized null
+            http
+                ?: HttpGateway(
+                    client,
+                    HttpGateway.deriveHttpUrl(url),
+                    // Live provider: a device token minted by the next
+                    // hello.ack is picked up without rebuilding the client.
+                    token = { store.deviceToken.ifBlank { store.token } },
+                    store.deviceId,
+                    deviceName = store.deviceName,
+                    fcmToken = { store.fcmToken.ifBlank { null } },
+                    ntfyTopic = { store.ntfyTopic.ifBlank { null } },
+                ).also { http = it }
+        }
+
+    /**
+     * The HTTP receive loop: SSE by default; after two consecutive SSE open
+     * failures (buffering proxy) it switches to long-poll until the next full
+     * (re)connect (docs/19 §19.6). Runs until the coroutine is cancelled.
+     */
+    private suspend fun httpReceiveLoop(gw: HttpGateway) {
+        var backoff = 1_000L
+        while (currentCoroutineContext().isActive) {
+            if (usingLongPoll) {
+                try {
+                    val res = gw.poll(httpCursor)
+                    res.frames.forEach { emitHttpFrame(it) }
+                    if (res.cursor > httpCursor) httpCursor = res.cursor
+                    // The poll answered: the link is back (long-poll has no
+                    // hello — restore the Connected state from the last one).
+                    restoreConnected()
+                } catch (e: HttpGateway.HttpAuthException) {
+                    _state.value = State.AuthFailed("gateway rejected the pairing token (HTTP 401)")
+                    return
+                } catch (e: Exception) {
+                    if (failTls(e)) return
+                    markStreamLost()
+                    IrisLog.w("http poll failed: ${e.message}")
+                    delay(backoff)
+                    backoff = minOf(backoff * 2, 15_000)
+                }
+            } else {
+                try {
+                    gw.events(
+                        cursor = httpCursor,
+                        onHello = { onHttpHello(it) },
+                        onFrame = { emitHttpFrame(it) },
+                        onCursor = { if (it > httpCursor) httpCursor = it },
+                        // A keep-alive comment proves the stream is alive —
+                        // count it toward liveness so an idle-but-healthy
+                        // stream isn't force-reconnected by the stale
+                        // watchdog every 3 minutes.
+                        onKeepAlive = { lastFrameMs = nowMs() },
+                    )
+                    // Clean EOF: back off briefly so a server that keeps
+                    // closing cleanly can't tight-loop the reconnect.
+                    backoff = 1_000L
+                    delay(backoff)
+                } catch (e: HttpGateway.HttpAuthException) {
+                    _state.value = State.AuthFailed("gateway rejected the pairing token (HTTP 401)")
+                    return
+                } catch (e: Exception) {
+                    if (failTls(e)) return
+                    sseFailures++
+                    markStreamLost()
+                    if (sseFailures >= 2) {
+                        // SSE seems blocked: switch to long-poll.
+                        usingLongPoll = true
+                        continue
+                    }
+                    IrisLog.w("sse read failed: ${e.message}")
+                    delay(backoff)
+                    backoff = minOf(backoff * 2, 15_000)
+                }
+            }
+        }
+    }
+
+    /** The SSE `event: hello` (the HTTP hello.ack). */
+    private fun onHttpHello(ack: HelloAckPayload) {
+        lastAck = ack
+        // Per-device token (docs/09 §9.3): minted at pairing, stable across
+        // (re)connects. Store it — from the next request on the app presents
+        // it instead of the shared IRIS_TOKEN, so the gateway can revoke
+        // THIS device without touching the others.
+        if (ack.deviceToken.isNotBlank() && ack.deviceToken != store.deviceToken) {
+            store.deviceToken = ack.deviceToken
+        }
         val connected = State.Connected(ack.serverCaps, ack.channels, ack.lastPushedCursor)
         _state.value = connected
         // M5: reconnect catch-up — replay frames parked while offline.
         val local = store.syncCursor
         if (local < ack.syncCursor) {
-                    val id = nextRequestId++
-                    ws.send(syncFrame(id, local).toWire())
+            val id = nextId()
+            scope.launch { httpGateway()?.postFrame(syncFrame(id, local)) }
         }
         // Prompt fast path (before the possibly-starved state collector).
         onHelloAck?.invoke(connected)
-                winner.complete(DialResult.Connected)
+    }
+
+    /** The receive stream just died: don't keep claiming "Connected" while
+     *  between attempts (a stale green dot through a Wi-Fi drop). */
+    private fun markStreamLost() {
+        if (_state.value is State.Connected) _state.value = State.Reconnecting
+    }
+
+    /** The receive stream is open again (long-poll answered): the link is
+     *  back. Long-poll has no hello, so restore the Connected state from the
+     *  last hello.ack (the SSE path gets a fresh one). Fire [onHelloAck] too:
+     *  the long-poll path has no `event: hello`, so without this the app's
+     *  "on connected" side effects (resend queued offline sends, load the
+     *  active lane's history) never run when a gateway restart lands while
+     *  the app is on the long-poll fallback — queued messages would sit at
+     *  "sending…" forever until an app restart (issue #6). */
+    private fun restoreConnected() {
+        if (_state.value !is State.Reconnecting) return
+        val connected =
+            lastAck?.let { State.Connected(it.serverCaps, it.channels, it.lastPushedCursor) }
+                ?: State.Connected(ServerCaps(), emptyList())
+        _state.value = connected
+        onHelloAck?.invoke(connected)
+    }
+
+    /** Deliver an HTTP-leg frame to the same sinks as any other frame. */
+    private fun emitHttpFrame(frame: Frame) {
+        lastFrameMs = nowMs()
+        if (!_events.tryEmit(frame)) {
+            // The collector is starved beyond the 128-frame buffer: the frame
+            // is dropped. Log it — a silent drop here loses user-visible
+            // content (echoes, deltas, notifications).
+            IrisLog.e("events buffer full — dropped frame ${frame.type} (id=${frame.id})")
         }
     }
-        authError.invokeOnCompletion { e ->
-            if (e == null) winner.complete(DialResult.AuthFailed(authError.getCompleted()))
+
+    /** Deliver the POST body's synchronous reply (or null) and handle a 401.
+     *  Shared by [sendMessage] and [sendFrame]. */
+    private fun handlePostResult(res: HttpGateway.PostResult?) {
+        res?.frame?.let { emitHttpFrame(it) }
+        if (res?.status == 401) {
+            _state.value = State.AuthFailed("gateway rejected the pairing token (HTTP 401)")
         }
-        fail.invokeOnCompletion { e ->
-            if (e == null) winner.complete(DialResult.Failed(fail.getCompleted()))
     }
-        val result =
-            withTimeoutOrNull(15_000) { winner.await() }
-                ?: DialResult.Failed("timeout waiting for hello.ack")
-        return Dial(result, ws, closed)
+
+    /** Terminal TLS failure: the presented certificate is untrusted and not
+     *  the pinned one (docs/09 §9.4). Retry can't succeed — stop the connect
+     *  loop and let the UI ask the user to confirm the fingerprint. True when
+     *  the state was set. */
+    private fun failTls(e: Exception): Boolean {
+        val tls = tlsFingerprintRequired(e) ?: return false
+        IrisLog.w("tls: untrusted gateway certificate (fingerprint ${tls.fingerprint})")
+        _state.value = State.TlsConfirmRequired(tls.fingerprint)
+        return true
     }
 
     // ── Outbound ──────────────────────────────────────────────────────────
 
     /** Send a text message (fire-and-forget; the server echoes it back).
-     *  M4: [mediaRefs] reference completed uploads (media.upload.ack refs).
+     *  [mediaRefs] reference completed uploads (POST /v1/media refs).
      *  [autoThread] asks the gateway to mint a fresh thread for the message
-     *  (auto-threading, docs/06 §6.3). */
+     *  (auto-threading, docs/06 §6.3).
+     *  [onResult] is called with the POST's HTTP status — 0 means "no
+     *  response" (not connected, or the network failed); 2xx means the
+     *  gateway accepted it; 4xx is a gateway rejection (error frame already
+     *  delivered via [events]). Used to fail the optimistic bubble instead
+     *  of leaving it at "sending…" forever. */
     fun sendMessage(
         chatId: String,
         text: String,
         threadId: String? = null,
         mediaRefs: List<String> = emptyList(),
         autoThread: Boolean = false,
+        onResult: ((Int) -> Unit)? = null,
     ) {
-        val ws = socket ?: return
-        val id = nextRequestId++
-        ws.send(messageSendFrame(id, chatId, text, threadId, mediaRefs, autoThread).toWire())
+        if (_state.value !is State.Connected) {
+            onResult?.invoke(0)
+            return
+        }
+        val id = nextId()
+        scope.launch {
+            val res =
+                httpGateway()?.postFrame(
+                    messageSendFrame(id, chatId, text, threadId, mediaRefs, autoThread),
+                )
+            // The synchronous reply (e.g. the read receipt, or an error frame
+            // on 4xx) comes back in the POST body, not on the event stream —
+            // deliver it or it is lost (docs/19 §19.7).
+            handlePostResult(res)
+            onResult?.invoke(res?.status ?: 0)
+        }
     }
 
-    // ── M4: media upload / pull ───────────────────────────────────────────
+    // ── Media upload / pull ───────────────────────────────────────────────
 
     /**
-     * Upload a local file as media (docs/07 §7.2): media.upload.start,
-     * 256 KiB binary chunks, media.upload.end {sha256}. Returns the server's
-     * media_ref (for message.send media_refs) on success.
+     * Upload a local file as media via `POST /v1/media` (docs/19 §19.15, v2).
+     * Returns the server's media_ref (for message.send media_refs) on success.
      */
     suspend fun uploadMedia(
         path: String,
@@ -395,190 +506,140 @@ class GatewayClient(
         filename: String,
         mediaRef: String,
     ): Result<String> {
-        val ws = socket ?: return Result.failure(IllegalStateException("not connected"))
-        val source = FileSource(path)
-        val size = source.size()
-        if (size <= 0) {
-            source.close()
-            return Result.failure(IllegalStateException("empty file"))
-        }
-        val id = nextRequestId++
-        val reply = CompletableDeferred<Frame>()
-        pending[id] = reply
-        try {
-            ws.send(mediaUploadStartFrame(id, mediaRef, kind, mime, filename, size).toWire())
-            val sha = Sha256()
-            source.use {
-                val buf = ByteArray(UPLOAD_CHUNK_BYTES)
-                while (true) {
-                    val n = it.read(buf)
-                    if (n < 0) break
-                    if (n == 0) continue
-                    sha.update(buf, 0, n)
-                    ws.send(buf.copyOfRange(0, n).toByteString())
-                }
-            }
-            ws.send(mediaUploadEndFrame(id, mediaRef, sha.hex()).toWire())
-            val frame = withTimeout(UPLOAD_TIMEOUT_MS) { reply.await() }
-            return when (frame.type) {
-                TYPE_MEDIA_UPLOAD_ACK -> {
-                    val p = frame.payloadAs<MediaUploadAckPayload>()
-                    if (p != null && p.ok) {
-                        Result.success(p.mediaRef)
-                    } else {
-                        Result.failure(IllegalStateException("upload rejected by server"))
-                    }
-                }
-
-                TYPE_ERROR -> {
-                    val e = frame.payloadAs<ErrorPayload>()
-                    Result.failure(IllegalStateException(e?.message ?: "upload failed"))
-                }
-
-                else -> {
-                    Result.failure(IllegalStateException("unexpected reply ${frame.type}"))
-                }
-            }
-        } catch (e: Exception) {
-            return Result.failure(e)
-        } finally {
-            pending.remove(id)
-        }
+        val http = httpGateway() ?: return Result.failure(IllegalStateException("not connected"))
+        return http.uploadMedia(path, mime, kind, filename, mediaRef)
     }
 
     /**
-     * Pull offered media (docs/07 §7.3): media.pull, then binary frames until
-     * media.pull.end. Each chunk is handed to [onChunk] (write to cache).
+     * Pull offered media via `GET /v1/media/{id}` (docs/19 §19.15, v2). Each
+     * chunk is handed to [onChunk] (write to cache).
      */
     suspend fun pullMedia(
         mediaId: String,
         onChunk: suspend (ByteArray) -> Unit,
     ): Result<Unit> =
         pullMutex.withLock {
-            val ws = socket ?: return@withLock Result.failure(IllegalStateException("not connected"))
-            val id = nextRequestId++
-            val chunks = Channel<ByteArray>(Channel.UNLIMITED)
-            val end = CompletableDeferred<Frame>()
-            pending[id] = end
-            binarySession = BinarySession.Pulling(id, chunks, end)
-            try {
-                ws.send(mediaPullFrame(id, mediaId).toWire())
-                val frame =
-                    withTimeout(PULL_TIMEOUT_MS) {
-                        for (chunk in chunks) onChunk(chunk)
-                        end.await()
-                    }
-                when (frame.type) {
-                    TYPE_MEDIA_PULL_END -> {
-                        val p = frame.payloadAs<MediaPullEndPayload>()
-                        if (p != null && p.ok) {
-                            Result.success(Unit)
-                        } else {
-                            Result.failure(IllegalStateException("pull failed"))
-                        }
-                    }
-
-                    TYPE_ERROR -> {
-                        val e = frame.payloadAs<ErrorPayload>()
-                        Result.failure(IllegalStateException(e?.message ?: "pull failed"))
-                    }
-
-                    else -> {
-                        Result.failure(IllegalStateException("unexpected reply ${frame.type}"))
-                    }
-                }
-            } catch (e: Exception) {
-                Result.failure(e)
-            } finally {
-                pending.remove(id)
-                chunks.cancel()
-                val s = binarySession
-                if (s is BinarySession.Pulling && s.requestId == id) binarySession = null
-            }
+            val http = httpGateway() ?: return@withLock Result.failure(IllegalStateException("not connected"))
+            http.pullMedia(mediaId) { chunk -> onChunk(chunk) }
         }
 
     companion object {
-        /** One WS binary frame carries at most this many media bytes (docs/07 §7.5). */
-        const val UPLOAD_CHUNK_BYTES = 256 * 1024
-        const val UPLOAD_TIMEOUT_MS = 120_000L
-        const val PULL_TIMEOUT_MS = 300_000L
+        /** No frames (or keep-alive comments) from the receive stream for
+         *  this long (gateway still
+         *  healthy) = stale stream: force a fresh (re)connect. 3 min keeps an
+         *  idle app from churning while still recovering a stuck stream well
+         *  before a user notices (issue #6). */
+        const val STALE_STREAM_TIMEOUT_MS = 180_000L
     }
 
     /**
-     * Send an arbitrary frame with a fresh request id (fire-and-forget).
-     * The server replies (or broadcasts) a frame carrying the same id; the
-     * app reconciles from [events]. Returns the id used, or -1 if not connected.
+     * Send an arbitrary frame with a fresh request id (fire-and-forget). The
+     * server replies (or broadcasts) a frame carrying the same id; the app
+     * reconciles from [events]. Returns the id used, or -1 if not connected.
      */
     fun sendFrame(frame: Frame): Int {
-        val ws = socket ?: return -1
-        val id = nextRequestId++
-        ws.send(frame.copy(id = id).toWire())
+        if (_state.value !is State.Connected) return -1
+        val id = nextId()
+        scope.launch {
+            val res = httpGateway()?.postFrame(frame.copy(id = id))
+            // Single-frame responses (commands.catalog, channel.list, search,
+            // history, sync, errors) come back in the POST body, not on the
+            // event stream — deliver it or it is lost (docs/19 §19.7).
+            handlePostResult(res)
+        }
         return id
     }
 
-    /** Send a ping (heartbeat). */
-    fun ping() {
-        socket?.send(pingFrame().toWire())
-    }
-
-    /** True when the socket has been silent for [timeoutMs] (heartbeat reap). */
-    fun isStale(timeoutMs: Long = 60_000): Boolean =
-        _state.value is State.Connected && lastLiveness.elapsedNow().inWholeMilliseconds > timeoutMs
-
-    fun reapStale() {
-        if (isStale()) {
-            socket?.close(1000, "heartbeat timeout")
-        }
-    }
-
     // ── One-shot hello test (Connect screen) ──────────────────────────────
 
     /**
-     * Real `hello` test: dial, wait for hello.ack (or auth error), close.
-     * Exercises the auth leg, not just TCP (docs/10 §10.8).
+     * Real connection test: health probe + SSE open. The auth leg is proven
+     * by the stream being accepted (200 vs 401) — we do NOT wait for the
+     * hello event, because the server replays the outbox (up to 72 h of
+     * frames) before it and a large outbox would time out a healthy gateway
+     * (docs/10 §10.8).
      */
     suspend fun testHello(
         url: String,
         token: String,
     ): Result<Unit> {
-        val dial = dial(url, token)
-        return when (val result = dial.result) {
-            DialResult.Connected -> {
-                dial.socket.close(1000, "test complete")
+        val gw =
+            HttpGateway(
+                client,
+                HttpGateway.deriveHttpUrl(url),
+                // An already-paired device presents its per-device token
+                // (docs/09 §9.3); a fresh pairing falls back to the entered
+                // shared token (bootstrap).
+                token = { store.deviceToken.ifBlank { token } },
+                store.deviceId,
+                deviceName = store.deviceName,
+                fcmToken = { store.fcmToken.ifBlank { null } },
+                ntfyTopic = { store.ntfyTopic.ifBlank { null } },
+            )
+        return try {
+            if (!gw.health()) {
+                Result.failure(IllegalStateException("gateway unreachable"))
+            } else {
+                // Open the SSE stream briefly: 200 = auth leg proven, 401 =
+                // bad token. Don't wait for the hello (outbox replay first).
+                val opened = CompletableDeferred<Unit>()
+                val job =
+                    scope.launch {
+                        try {
+                            gw.events(
+                                cursor = store.syncCursor,
+                                onOpen = { opened.complete(Unit) },
+                                onHello = { },
+                                onFrame = { },
+                                onCursor = { },
+                            )
+                        } catch (e: Exception) {
+                            opened.completeExceptionally(e)
+                        }
+                    }
+                try {
+                    if (withTimeoutOrNull(10_000) { opened.await() } == null) {
+                        Result.failure(IllegalStateException("timeout opening the event stream"))
+                    } else {
                         Result.success(Unit)
                     }
-
-            is DialResult.AuthFailed -> {
-                Result.failure(IllegalStateException(result.message))
-            }
-
-            is DialResult.Failed -> {
-                Result.failure(IllegalStateException(result.message))
-            }
-        }
-    }
-
-    // ── Heartbeat job ─────────────────────────────────────────────────────
-
-    fun startHeartbeat() {
-        scope.launch {
-            while (isActive) {
-                delay(20_000)
-                if (_state.value is State.Connected) {
-                    ping()
-                    reapStale()
+                } catch (e: HttpGateway.HttpAuthException) {
+                    Result.failure(IllegalStateException("unauthorized — check the pairing token"))
+                } catch (e: CancellationException) {
+                    throw e
+                } catch (e: Exception) {
+                    // Unwrap the pinning manager's signal so the Connect
+                    // screen can offer the fingerprint confirm dialog.
+                    Result.failure(tlsFingerprintRequired(e) ?: IllegalStateException("connection failed: ${e.message}"))
+                } finally {
+                    job.cancel()
                 }
             }
+        } catch (e: Exception) {
+            Result.failure(tlsFingerprintRequired(e) ?: e)
         }
     }
 
     // ── Helpers ───────────────────────────────────────────────────────────
 
+    /** Backoff that wakes early when [poke] is called (app foregrounded). */
+    private suspend fun backoffOrWake(ms: Long) {
+        var remaining = ms
+        while (remaining > 0 && currentCoroutineContext().isActive) {
+            delay(minOf(remaining, 500L))
+            if (wakeRequested) {
+                wakeRequested = false
+                return
+            }
+            remaining -= 500L
+        }
+    }
+
     private fun backoffMs(attempt: Int): Long {
         val base = 1_000L * (1L shl minOf(attempt, 5)) // 1s..32s
         val capped = minOf(base, 30_000L)
         return capped + Random.nextLong(0, 500)
     }
-}
 
-private fun Frame.toWire(): String = IrisJson.instance.encodeToString(Frame.serializer(), this)
+    private fun nowMs(): Long = nowMillis()
+}

app/shared/src/commonMain/kotlin/iris/net/HttpGateway.kt

@@ -0,0 +1,507 @@
+package iris.net
+
+import iris.AppVersion
+import iris.media.Sha256
+import iris.media.isValidMediaId
+import iris.protocol.ErrorPayload
+import iris.protocol.Frame
+import iris.protocol.HelloAckPayload
+import iris.protocol.IrisJson
+import iris.protocol.MediaUploadAckPayload
+import iris.util.IrisLog
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import kotlinx.serialization.json.jsonArray
+import kotlinx.serialization.json.jsonObject
+import kotlinx.serialization.json.jsonPrimitive
+import okhttp3.Headers
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.RequestBody.Companion.asRequestBody
+import okhttp3.RequestBody.Companion.toRequestBody
+import java.io.File
+import java.io.IOException
+import java.util.concurrent.TimeUnit
+
+/**
+ * HTTP transport client (docs/19) — the only transport.
+ *
+ * The app sends over `POST /v1/frame` and receives over SSE
+ * `GET /v1/events` (or long-poll `GET /v1/poll` where SSE is blocked);
+ * media travels via `POST/GET /v1/media`.
+ *
+ * [events] is ONE SSE connection attempt (blocking read on
+ * [Dispatchers.IO]); [GatewayClient] wraps it in a retry loop and tracks
+ * the resume cursor via the [events] `onCursor` callback (SSE `id` =
+ * outbox cursor, so resume is just the last seen id).
+ */
+class HttpGateway(
+    private val client: OkHttpClient,
+    private val baseUrl: String,
+    /** Live auth-token provider, read per request: the per-device token
+     *  (docs/09 §9.3) when the gateway minted one, else the shared
+     *  IRIS_TOKEN (bootstrap). A lambda so a freshly issued device token is
+     *  picked up without rebuilding the client. */
+    private val token: () -> String,
+    private val deviceId: String,
+    /** Human-readable device name (sent as `X-Iris-Device-Name`; the gateway
+     *  upserts it into the device registry on every SSE open — the HTTP
+     *  equivalent of the old WS hello upsert). */
+    private val deviceName: String? = null,
+    /** Live push-token providers, read per request so a rotated FCM token or
+     *  a fresh ntfy topic is picked up without rebuilding the client. */
+    private val fcmToken: () -> String? = { null },
+    private val ntfyTopic: () -> String? = { null },
+) {
+    /** The gateway rejected the pairing token (HTTP 401). Terminal: retrying
+     *  with the same token can't succeed. */
+    class HttpAuthException : IOException("unauthorized (HTTP 401)")
+
+    // OkHttp's default read timeout (10 s) is shorter than the gateway's SSE
+    // heartbeat (15 s) and the long-poll hold (25 s) — per-purpose clients
+    // with extended call timeouts (see the *Client() helpers below).
+    private val healthClient: OkHttpClient = client.healthClient()
+    private val streamClient: OkHttpClient = client.streamClient()
+    private val pollClient: OkHttpClient = client.pollClient()
+    private val mediaClient: OkHttpClient = client.mediaClient()
+
+    /** Close the per-purpose clients (and their idle connections). The
+     *  shared base [client] is owned by the caller. */
+    fun close() {
+        healthClient.dispatcher.executorService.shutdown()
+        streamClient.dispatcher.executorService.shutdown()
+        pollClient.dispatcher.executorService.shutdown()
+        mediaClient.dispatcher.executorService.shutdown()
+        healthClient.connectionPool.evictAll()
+        streamClient.connectionPool.evictAll()
+        pollClient.connectionPool.evictAll()
+        mediaClient.connectionPool.evictAll()
+    }
+
+    /** POST /v1/frame result. [frame] is the handler's synchronous reply
+     *  (error frame on 4xx, e.g. read.receipt on 200) or null for a plain
+     *  202 accept-and-ack. */
+    data class PostResult(
+        val ok: Boolean,
+        val status: Int,
+        val frame: Frame?,
+    )
+
+    /** Long-poll result: new high-water [cursor] + frames with cursor >
+     *  the requested one (may be empty at timeout). */
+    data class PollResult(
+        val cursor: Long,
+        val frames: List<Frame>,
+    )
+
+    companion object {
+        val JSON = "application/json".toMediaType()
+
+        /** Default port of the gateway's HTTP leg (WS default is 8790). */
+        const val DEFAULT_PORT = 8791
+
+        /** Media transfer chunk (docs/07 §7.5). */
+        private const val MEDIA_CHUNK_BYTES = 256 * 1024
+
+        /**
+         * Derive the HTTP base URL from the stored WS URL (docs/19 §19.4):
+         * `ws(s)://host[:port]/ws` -> `http(s)://host:8791`. The WS port is
+         * a different service, so the port is always replaced with the
+         * HTTP leg's default. Pure function (unit-tested).
+         */
+        fun deriveHttpUrl(wsUrl: String): String {
+            val u = wsUrl.trim()
+            val (scheme, rest) =
+                when {
+                    u.startsWith("wss://") -> "https" to u.removePrefix("wss://")
+                    u.startsWith("ws://") -> "http" to u.removePrefix("ws://")
+                    else -> return u // already http(s)
+                }
+            val authority = rest.substringBefore('/')
+            val host = authority.substringBefore(':')
+            return "$scheme://$host:$DEFAULT_PORT"
+        }
+    }
+
+    private fun authHeaders(): Headers {
+        val b =
+            Headers
+                .Builder()
+                .add("Authorization", "Bearer ${token()}")
+                .add("X-Iris-Device", deviceId)
+        // Device registration (docs/19): the gateway upserts name + push
+        // tokens from these headers on every SSE open (COALESCE — absent
+        // headers never clobber a newer fcm.register value).
+        deviceName?.takeIf { it.isNotBlank() }?.let { b.add("X-Iris-Device-Name", it) }
+        fcmToken()?.takeIf { !it.isNullOrBlank() }?.let { b.add("X-Iris-Fcm-Token", it) }
+        ntfyTopic()?.takeIf { it.isNotBlank() }?.let { b.add("X-Iris-Ntfy-Topic", it) }
+        // Release version (repo-root VERSION baked in at build time); the
+        // gateway stores it in the device registry (docs/04 hello.ack note).
+        b.add("X-Iris-App-Version", AppVersion.VERSION)
+        return b.build()
+    }
+
+    /** Parse a response body as a protocol frame (null when not a frame,
+     *  e.g. the plain `{"ok":true}` ack). */
+    private fun parseFrame(body: String): Frame? =
+        try {
+            if (body.startsWith("{")) {
+                val obj = IrisJson.instance.parseToJsonElement(body)
+                if (obj.jsonObject.containsKey("type")) {
+                    IrisJson.instance.decodeFromJsonElement(Frame.serializer(), obj)
+                } else {
+                    null
+                }
+            } else {
+                null
+            }
+        } catch (e: Exception) {
+            null
+        }
+
+    /** Liveness probe (unauthenticated by design). True on 200. */
+    suspend fun health(): Boolean =
+        withContext(Dispatchers.IO) {
+            val request =
+                Request
+                    .Builder()
+                    .url("$baseUrl/v1/health")
+                    .build()
+            healthClient
+                .newCall(request)
+                .execute()
+                .use { response ->
+                    response.body?.close()
+                    response.code == 200
+                }
+        }
+
+    /**
+     * POST /v1/frame (accept-and-ack, docs/19 §19.7). 2xx -> [PostResult.ok]
+     * (with the synchronous reply frame when the handler sent one); 4xx ->
+     * the error frame as the body. Network failures (timeout, reset, DNS —
+     * common when mobile Wi-Fi half-sleeps) do NOT throw: they come back as
+     * [PostResult] with [PostResult.status] 0 ("no HTTP response"). The
+     * callers are fire-and-forget coroutines — an uncaught exception here
+     * kills the app process.
+     */
+    suspend fun postFrame(frame: Frame): PostResult =
+        withContext(Dispatchers.IO) {
+            val wire = IrisJson.instance.encodeToString(Frame.serializer(), frame)
+            val request =
+                Request
+                    .Builder()
+                    .url("$baseUrl/v1/frame")
+                    .headers(authHeaders())
+                    .post(wire.toRequestBody(JSON))
+                    .build()
+            try {
+                client
+                    .newCall(request)
+                    .execute()
+                    .use { response ->
+                        val body = response.body?.string().orEmpty()
+                        val parsed = parseFrame(body)
+                        PostResult(response.isSuccessful, response.code, parsed)
+                    }
+            } catch (e: Exception) {
+                IrisLog.w("postFrame ${frame.type} failed: ${e.message}")
+                PostResult(ok = false, status = 0, frame = null)
+            }
+        }
+
+    /**
+     * One SSE connection attempt: outbox catch-up from [cursor], then live
+     * frames. [onOpen] fires as soon as the stream is accepted (200 — the auth
+     * leg is proven; the server may still replay a large outbox before the
+     * hello); [onHello] fires for `event: hello` (the HTTP hello.ack);
+     * [onFrame] for `event: frame`; [onCursor] with the SSE `id` (outbox
+     * cursor) when present; [onKeepAlive] for SSE comment lines (the
+     * heartbeat) so callers can count keep-alives toward liveness. Returns
+     * on clean EOF; throws [IOException] on open/read failure. Callbacks run
+     * on the IO thread.
+     */
+    suspend fun events(
+        cursor: Long,
+        onOpen: (() -> Unit)? = null,
+        onHello: (HelloAckPayload) -> Unit,
+        onFrame: (Frame) -> Unit,
+        onCursor: (Long) -> Unit,
+        onKeepAlive: (() -> Unit)? = null,
+    ) {
+        withContext(Dispatchers.IO) {
+            val request =
+                Request
+                    .Builder()
+                    .url("$baseUrl/v1/events?cursor=$cursor")
+                    .headers(authHeaders())
+                    .build()
+            streamClient
+                .newCall(request)
+                .execute()
+                .use { response ->
+                    if (response.code == 401) throw HttpAuthException()
+                    if (!response.isSuccessful) {
+                        throw IOException("SSE open failed: HTTP ${response.code}")
+                    }
+                    onOpen?.invoke()
+                    val source = response.body?.source() ?: throw IOException("empty SSE body")
+                    var eventId: String? = null
+                    val dataLines = mutableListOf<String>()
+                    while (true) {
+                        val line = source.readUtf8Line() ?: break // EOF
+                        when {
+                            line.isEmpty() -> {
+                                if (dataLines.isNotEmpty()) {
+                                    val data = dataLines.joinToString("\n")
+                                    try {
+                                        val frame =
+                                            IrisJson.instance.decodeFromString(
+                                                Frame.serializer(),
+                                                data,
+                                            )
+                                        when (eventId) {
+                                            "hello" -> {
+                                                onHello(
+                                                    frame.payloadAs<HelloAckPayload>()
+                                                        ?: HelloAckPayload(),
+                                                )
+                                            }
+
+                                            else -> {
+                                                onFrame(frame)
+                                            }
+                                        }
+                                    } catch (e: Exception) {
+                                        IrisLog.e("sse frame decode failed: $e :: ${data.take(120)}")
+                                    }
+                                }
+                                eventId = null
+                                dataLines.clear()
+                            }
+
+                            line.startsWith(":") -> {
+                                // heartbeat comment
+                                onKeepAlive?.invoke()
+                            }
+
+                            line.startsWith("id:") -> {
+                                line
+                                    .removePrefix("id:")
+                                    .trim()
+                                    .toLongOrNull()
+                                    ?.let(onCursor)
+                            }
+
+                            line.startsWith("event:") -> {
+                                eventId = line.removePrefix("event:").trim()
+                            }
+
+                            line.startsWith("data:") -> {
+                                dataLines.add(line.removePrefix("data:").removePrefix(" "))
+                            }
+                        }
+                    }
+                }
+        }
+    }
+
+    /**
+     * Long-poll (docs/19 §19.6): the server holds the request up to 25 s.
+     * Returns the new high-water cursor + any frames with cursor > [cursor].
+     */
+    suspend fun poll(cursor: Long): PollResult =
+        withContext(Dispatchers.IO) {
+            val request =
+                Request
+                    .Builder()
+                    .url("$baseUrl/v1/poll?cursor=$cursor")
+                    .headers(authHeaders())
+                    .build()
+            pollClient
+                .newCall(request)
+                .execute()
+                .use { response ->
+                    if (response.code == 401) throw HttpAuthException()
+                    if (!response.isSuccessful) {
+                        throw IOException("poll failed: HTTP ${response.code}")
+                    }
+                    val body = response.body?.string().orEmpty()
+                    val obj = IrisJson.instance.parseToJsonElement(body).jsonObject
+                    val newCursor = obj["cursor"]?.jsonPrimitive?.content?.toLongOrNull() ?: cursor
+                    val frames =
+                        obj["frames"]
+                            ?.jsonArray
+                            ?.mapNotNull { el ->
+                                try {
+                                    IrisJson.instance.decodeFromJsonElement(Frame.serializer(), el)
+                                } catch (e: Exception) {
+                                    null
+                                }
+                            }.orEmpty()
+                    PollResult(newCursor, frames)
+                }
+        }
+
+    /**
+     * Upload a local file as media (docs/19 §19.15, v2): one `POST /v1/media`
+     * with the whole file as the body and the metadata in `X-Iris-Media-*`
+     * headers (sha256 precomputed in a first pass). Returns the server's
+     * media_ref (for message.send media_refs) on success.
+     */
+    suspend fun uploadMedia(
+        path: String,
+        mime: String,
+        kind: String,
+        filename: String,
+        mediaRef: String,
+    ): Result<String> =
+        withContext(Dispatchers.IO) {
+            val file = File(path)
+            if (!file.isFile() || file.length() <= 0) {
+                return@withContext Result.failure(IllegalStateException("empty file"))
+            }
+            val sha = Sha256()
+            file.inputStream().use { ins ->
+                val buf = ByteArray(MEDIA_CHUNK_BYTES)
+                while (true) {
+                    val n = ins.read(buf)
+                    if (n < 0) break
+                    if (n > 0) sha.update(buf, 0, n)
+                }
+            }
+            val request =
+                Request
+                    .Builder()
+                    .url("$baseUrl/v1/media")
+                    .headers(
+                        authHeaders()
+                            .newBuilder()
+                            .add("X-Iris-Media-Ref", mediaRef)
+                            .add("X-Iris-Media-Kind", kind)
+                            .add("X-Iris-Media-Filename", filename)
+                            .add("X-Iris-Media-Sha256", sha.hex())
+                            .build(),
+                    ).post(file.asRequestBody(mime.toMediaType()))
+                    .build()
+            try {
+                mediaClient
+                    .newCall(request)
+                    .execute()
+                    .use { response ->
+                        val body = response.body?.string().orEmpty()
+                        val frame = parseFrame(body)
+                        if (response.isSuccessful) {
+                            val p = frame?.payloadAs<MediaUploadAckPayload>()
+                            if (p != null && p.ok) {
+                                Result.success(p.mediaRef)
+                            } else {
+                                Result.failure(IllegalStateException("upload rejected by server"))
+                            }
+                        } else {
+                            val e = frame?.payloadAs<ErrorPayload>()
+                            Result.failure(
+                                IllegalStateException(e?.message ?: "upload failed: HTTP ${response.code}"),
+                            )
+                        }
+                    }
+            } catch (e: Exception) {
+                // Network failure mid-upload: report, don't throw (the caller
+                // is a fire-and-forget coroutine — an uncaught exception kills
+                // the app process).
+                IrisLog.w("media upload failed: ${e.message}")
+                Result.failure(e)
+            }
+        }
+
+    /**
+     * Pull offered media (docs/19 §19.15, v2): `GET /v1/media/{id}`; the
+     * response body is the file, streamed to [onChunk] (write to cache).
+     */
+    suspend fun pullMedia(
+        mediaId: String,
+        onChunk: suspend (ByteArray) -> Unit,
+    ): Result<Unit> =
+        withContext(Dispatchers.IO) {
+            // Server-controlled id: reject path-traversal / URL-breaking
+            // values before they reach the request line (M-2 / S-1).
+            if (!isValidMediaId(mediaId)) {
+                return@withContext Result.failure(IllegalStateException("invalid media id"))
+            }
+            val request =
+                Request
+                    .Builder()
+                    .url("$baseUrl/v1/media/$mediaId")
+                    .headers(authHeaders())
+                    .build()
+            try {
+                mediaClient
+                    .newCall(request)
+                    .execute()
+                    .use { response ->
+                        if (!response.isSuccessful) {
+                            val e = parseFrame(response.body?.string().orEmpty())?.payloadAs<ErrorPayload>()
+                            Result.failure(
+                                IllegalStateException(e?.message ?: "pull failed: HTTP ${response.code}"),
+                            )
+                        } else {
+                            try {
+                                val source = response.body?.source() ?: throw IOException("empty body")
+                                val buf = ByteArray(MEDIA_CHUNK_BYTES)
+                                while (true) {
+                                    val n = source.read(buf)
+                                    if (n < 0) break
+                                    if (n == 0) continue
+                                    onChunk(buf.copyOfRange(0, n))
+                                }
+                                Result.success(Unit)
+                            } catch (e: Exception) {
+                                Result.failure(e)
+                            }
+                        }
+                    }
+            } catch (e: Exception) {
+                // Network failure before/while opening the pull: report, don't
+                // throw (fire-and-forget caller — uncaught = process death).
+                IrisLog.w("media pull failed: ${e.message}")
+                Result.failure(e)
+            }
+        }
+}
+
+/**
+ * Per-purpose OkHttp clients. The base client's DEFAULT read timeout (10 s)
+ * is shorter than the gateway's SSE heartbeat (15 s) and the long-poll hold
+ * (25 s) — it would kill both receive paths while they are simply waiting
+ * for the next byte, so the streaming clients override it. The read timeout
+ * doubles as the dead-stream detector (a healthy SSE stream gets a heartbeat
+ * comment every 15 s; a healthy poll answers within 25 s).
+ */
+
+/** SSE: long-lived stream → no call cap; read timeout = 3× the 15 s
+ *  heartbeat (detects a dead connection within 45 s). */
+internal fun OkHttpClient.streamClient(): OkHttpClient =
+    newBuilder()
+        .callTimeout(0, TimeUnit.MILLISECONDS)
+        .readTimeout(45_000, TimeUnit.MILLISECONDS)
+        .build()
+
+/** Long-poll: the server holds up to 25 s → no call cap; read timeout =
+ *  hold + 15 s margin. */
+internal fun OkHttpClient.pollClient(): OkHttpClient =
+    newBuilder()
+        .callTimeout(0, TimeUnit.MILLISECONDS)
+        .readTimeout(40_000, TimeUnit.MILLISECONDS)
+        .build()
+
+internal fun OkHttpClient.healthClient(): OkHttpClient =
+    newBuilder()
+        .callTimeout(2_000, TimeUnit.MILLISECONDS)
+        .build()
+
+/** Media transfers (upload/pull) can take a while on large files. */
+internal fun OkHttpClient.mediaClient(): OkHttpClient =
+    newBuilder()
+        .callTimeout(300_000, TimeUnit.MILLISECONDS)
+        .build()

app/shared/src/commonMain/kotlin/iris/net/ReleaseCheck.kt

@@ -0,0 +1,96 @@
+package iris.net
+
+import iris.protocol.IrisJson
+import iris.util.IrisLog
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import kotlinx.serialization.json.jsonObject
+import kotlinx.serialization.json.jsonPrimitive
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.Response
+
+/**
+ * Latest-release check (docs/04 hello.ack note): the repo is public on Gitea,
+ * so the app can ask for the newest release tag without any token. Settings
+ * shows "vX.Y.Z available" when the running build is older.
+ *
+ * Best-effort by design: any failure (offline, DNS, rate limit) just yields
+ * `null` — the check must never surface an error in the UI.
+ */
+object ReleaseCheck {
+    const val LATEST_RELEASE_URL =
+        "https://gitea.zephyre.one/api/v1/repos/ARIA/iris_x_hermes/releases/latest"
+
+    /**
+     * One shared client for the process lifetime: an OkHttpClient owns a
+     * thread pool and connection pool, so it must not be rebuilt per screen
+     * open (and never needs explicit shutdown — the pools idle out). Short
+     * timeouts so a black-holed network can't linger the LaunchedEffect.
+     */
+    private val client: OkHttpClient =
+        OkHttpClient
+            .Builder()
+            .connectTimeout(5, java.util.concurrent.TimeUnit.SECONDS)
+            .readTimeout(10, java.util.concurrent.TimeUnit.SECONDS)
+            .build()
+
+    /**
+     * The latest release version (tag without the leading "v"), or `null`
+     * when the check could not be performed.
+     */
+    suspend fun latestVersion(): String? =
+        withContext(Dispatchers.IO) {
+            val request =
+                Request
+                    .Builder()
+                    .url(LATEST_RELEASE_URL)
+                    .get()
+                    .build()
+            try {
+                client.newCall(request).execute().use { response: Response ->
+                    if (!response.isSuccessful) {
+                        IrisLog.d("ReleaseCheck: HTTP ${response.code}")
+                        return@withContext null
+                    }
+                    val body = response.body?.string() ?: return@withContext null
+                    val tag =
+                        IrisJson
+                            .instance
+                            .parseToJsonElement(body)
+                            .jsonObject
+                            .get("tag_name")
+                            ?.jsonPrimitive
+                            ?.content
+                            .orEmpty()
+                    tag.removePrefix("v").ifBlank { null }
+                }
+            } catch (e: Exception) {
+                IrisLog.d("ReleaseCheck: ${e.message}")
+                null
+            }
+        }
+
+    /**
+     * True when [latest] is a newer release than [running]. Numeric
+     * component-wise comparison (so "0.1.10" > "0.1.9"); anything that does
+     * not parse as dotted numbers is treated as "not newer" — the hint is
+     * best-effort and must never fire for dev builds ahead of the latest
+     * release.
+     */
+    fun isNewer(
+        latest: String,
+        running: String,
+    ): Boolean {
+        val a = latest.split('.').mapNotNull { it.takeWhile(Char::isDigit).toIntOrNull() }
+        val b = running.split('.').mapNotNull { it.takeWhile(Char::isDigit).toIntOrNull() }
+        if (a.isEmpty() || b.isEmpty()) return false
+        val n = maxOf(a.size, b.size)
+        for (i in 0 until n) {
+            val x = a.getOrElse(i) { 0 }
+            val y = b.getOrElse(i) { 0 }
+            if (x != y) return x > y
+        }
+        return false
+    }
+}

app/shared/src/commonMain/kotlin/iris/net/TlsPinning.kt

@@ -0,0 +1,118 @@
+package iris.net
+
+import java.security.KeyStore
+import java.security.MessageDigest
+import java.security.SecureRandom
+import java.security.cert.CertificateException
+import java.security.cert.X509Certificate
+import javax.net.ssl.SSLContext
+import javax.net.ssl.SSLSocketFactory
+import javax.net.ssl.TrustManager
+import javax.net.ssl.TrustManagerFactory
+import javax.net.ssl.X509TrustManager
+
+/**
+ * TLS certificate pinning for self-signed gateways (docs/09 §9.4).
+ *
+ * A gateway behind `IRIS_HTTP_CERT` may present a
+ * self-signed certificate the platform doesn't trust. Instead of forcing the
+ * user to install it into the system trust store, the app shows the
+ * certificate's SHA-256 fingerprint on first pair (SSH host-key style); once
+ * the user confirms it, the fingerprint is pinned in secure storage and
+ * [PinningTrustManager] accepts exactly that certificate from then on.
+ *
+ * Hostname verification is NOT bypassed: OkHttp runs its own hostname check
+ * on top of the trust manager, so a pinned cert still has to match the URL's
+ * host. A *changed* certificate (different fingerprint) fails again with
+ * [TlsFingerprintRequired] — the user must re-confirm, like a changed SSH
+ * host key.
+ */
+
+/**
+ * The gateway presented a certificate the platform doesn't trust and that
+ * doesn't match the pinned fingerprint. Carries the SHA-256 fingerprint the
+ * user must confirm. Thrown by [PinningTrustManager] during the handshake;
+ * the JSSE/OkHttp layers wrap it, so find it with [tlsFingerprintRequired].
+ */
+class TlsFingerprintRequired(
+    val fingerprint: String,
+) : CertificateException("gateway certificate not trusted (fingerprint $fingerprint)")
+
+/**
+ * SHA-256 of the certificate's DER encoding, colon-separated byte pairs
+ * (SSH host-key style) — the string the user verifies on the gateway host.
+ */
+fun certFingerprint(cert: X509Certificate): String =
+    MessageDigest
+        .getInstance("SHA-256")
+        .digest(cert.encoded)
+        .joinToString(":") { String.format("%02X", it) }
+
+/**
+ * Wraps the platform default trust manager:
+ * - CA-signed certs behave exactly as before (the default manager decides).
+ * - A cert the default manager REJECTS is accepted only when its fingerprint
+ *   equals the user-confirmed pin ([pinnedFingerprint], read live so a fresh
+ *   pin is picked up without rebuilding the client).
+ * - Anything else fails with [TlsFingerprintRequired] carrying the
+ *   presented fingerprint, so the UI can offer the confirm dialog.
+ */
+class PinningTrustManager(
+    private val pinnedFingerprint: () -> String,
+) : X509TrustManager {
+    private val default: X509TrustManager = defaultTrustManager()
+
+    override fun checkClientTrusted(
+        chain: Array<X509Certificate>,
+        authType: String,
+    ) {
+        default.checkClientTrusted(chain, authType)
+    }
+
+    override fun getAcceptedIssuers(): Array<X509Certificate> = default.acceptedIssuers
+
+    override fun checkServerTrusted(
+        chain: Array<X509Certificate>,
+        authType: String,
+    ) {
+        try {
+            default.checkServerTrusted(chain, authType)
+        } catch (e: CertificateException) {
+            val fp = certFingerprint(chain.first())
+            if (pinnedFingerprint().isNotBlank() && fp == pinnedFingerprint()) return
+            throw TlsFingerprintRequired(fp)
+        }
+    }
+}
+
+/** The platform default server trust manager (the JDK's CA store). */
+fun defaultTrustManager(): X509TrustManager {
+    val factory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm())
+    factory.init(null as KeyStore?)
+    return (factory.trustManagers.firstOrNull { it is X509TrustManager } as? X509TrustManager)
+        ?: error("no X509TrustManager in the default trust store")
+}
+
+/** An [SSLSocketFactory] that trusts via [tm] (the pinning manager). */
+fun pinningSslSocketFactory(tm: X509TrustManager): SSLSocketFactory {
+    val ctx = SSLContext.getInstance("TLS")
+    ctx.init(null, arrayOf<TrustManager>(tm), SecureRandom())
+    return ctx.socketFactory
+}
+
+/**
+ * Unwrap a [TlsFingerprintRequired] from a (possibly nested) transport
+ * exception: the trust manager throws it during the handshake and the
+ * JSSE/OkHttp layers wrap it in SSLHandshakeException/IOException. Null when
+ * the failure has nothing to do with an untrusted gateway certificate.
+ */
+fun tlsFingerprintRequired(e: Throwable): TlsFingerprintRequired? {
+    var t: Throwable? = e
+    var depth = 0
+    while (t != null && depth < 10) {
+        if (t is TlsFingerprintRequired) return t
+        t = t.cause
+        depth++
+    }
+    return null
+}

app/shared/src/commonMain/kotlin/iris/platform/PlatformPush.kt

@@ -6,7 +6,7 @@ package iris.platform
  * The controller (commonMain) needs to know whether the app is in the
  * foreground (to decide between an in-app banner and a system notification)
  * and to post a system notification when a `notification` frame arrives while
- * the app is backgrounded but the WS is still live.
+ * the app is backgrounded but the gateway connection is still live.
  */
 
 /** True when the app's UI is visible (Android: activity resumed). */

app/shared/src/commonMain/kotlin/iris/platform/PlatformQr.kt

@@ -0,0 +1,13 @@
+package iris.platform
+
+import androidx.compose.runtime.Composable
+
+/**
+ * A "Scan QR" button that launches the platform QR scanner and delivers the
+ * scanned text (or null if the user cancelled) to [onResult] (docs/20).
+ *
+ * Android: opens [QrScanActivity] (CameraX + ML Kit). Desktop: renders nothing
+ * (the Connect screen hides it there).
+ */
+@Composable
+expect fun QrScanButton(onResult: (String?) -> Unit)

app/shared/src/commonMain/kotlin/iris/protocol/Protocol.kt

@@ -12,9 +12,9 @@ import kotlinx.serialization.json.put
 
 /**
  * Wire protocol frames (mirror of gateway-plugin/protocol.py).
- * See docs/04-wire-protocol.md. M1: hello/hello.ack, message, message.send,
- * error, ping/pong, typing. M2: message.start/update/stop, tool.start/
- * progress/end, commentary, reasoning (on message / message.stop).
+ * See docs/04-wire-protocol.md. Defines all frame types and payloads:
+ * hello/hello.ack, message (send + streaming), tool cards, commentary,
+ * reasoning, channels, media, notifications, sync, and error frames.
  */
 
 const val PROTOCOL_VERSION = 1
@@ -30,13 +30,10 @@ object IrisJson {
 
 // ── Frame type constants ────────────────────────────────────────────────
 
-const val TYPE_HELLO = "hello"
 const val TYPE_HELLO_ACK = "hello.ack"
 const val TYPE_MESSAGE = "message"
 const val TYPE_MESSAGE_SEND = "message.send"
 const val TYPE_ERROR = "error"
-const val TYPE_PING = "ping"
-const val TYPE_PONG = "pong"
 const val TYPE_TYPING = "typing"
 
 // M2 — streaming / tools / commentary
@@ -50,15 +47,16 @@ const val TYPE_MESSAGE_DELETED = "message.deleted"
 const val TYPE_TOOL_START = "tool.start"
 const val TYPE_TOOL_PROGRESS = "tool.progress"
 const val TYPE_TOOL_END = "tool.end"
+
+// Agent todo list (live planning state; ephemeral, never outboxed — a
+// reconnecting device re-learns it from the snapshot after hello.ack).
+const val TYPE_TODO_UPDATE = "todo.update"
+
 const val TYPE_COMMENTARY = "commentary"
 
-// M4 — media (upload / offer / pull)
-const val TYPE_MEDIA_UPLOAD_START = "media.upload.start"
-const val TYPE_MEDIA_UPLOAD_END = "media.upload.end"
+// M4 — media (offer; upload/pull are HTTP, docs/19 §19.15)
 const val TYPE_MEDIA_UPLOAD_ACK = "media.upload.ack"
 const val TYPE_MEDIA_OFFER = "media.offer"
-const val TYPE_MEDIA_PULL = "media.pull"
-const val TYPE_MEDIA_PULL_END = "media.pull.end"
 
 // M5 — push / notifications / read receipt / gateway status
 const val TYPE_NOTIFICATION = "notification"
@@ -83,24 +81,19 @@ const val TYPE_SEARCH_RESULTS = "search.results"
 
 // Slash-command catalog (the composer's "/" drawer)
 const val TYPE_COMMANDS_CATALOG = "commands.catalog"
+
+// Interactive pickers (slash-command choice menus, e.g. /reasoning, /fast)
+const val TYPE_PICKER_CHOICE = "picker.choice"
+const val TYPE_PICKER_SELECT = "picker.select"
 const val TYPE_SYNC = "sync"
 const val TYPE_SYNC_DONE = "sync.done"
 const val TYPE_HISTORY = "history"
 
-// ── Error codes ─────────────────────────────────────────────────────────
-
-const val ERR_AUTH = "auth"
-const val ERR_NOT_FOUND = "not_found"
-const val ERR_UNSUPPORTED = "unsupported"
-const val ERR_INTERNAL = "internal"
-const val ERR_MEDIA_TOO_LARGE = "media_too_large"
-
 // M4 — media kinds (docs/07 §7.1)
 const val KIND_IMAGE = "image"
 const val KIND_AUDIO = "audio"
 const val KIND_VIDEO = "video"
 const val KIND_DOCUMENT = "document"
-const val KIND_VOICE = "voice"
 
 // ── Roles ───────────────────────────────────────────────────────────────
 
@@ -133,18 +126,6 @@ data class Frame(
         }
 }
 
-// ── hello (app -> server) ───────────────────────────────────────────────
-
-@Serializable
-data class HelloPayload(
-    val token: String,
-    @SerialName("device_id") val deviceId: String,
-    @SerialName("device_name") val deviceName: String,
-    val caps: JsonElement = buildJsonObject { put("min_protocol", JsonPrimitive(1)) },
-    @SerialName("fcm_token") val fcmToken: String? = null,
-    @SerialName("ntfy_topic") val ntfyTopic: String? = null,
-)
-
 // ── hello.ack (server -> app) ───────────────────────────────────────────
 
 @Serializable
@@ -159,6 +140,8 @@ data class ServerCaps(
     val push: String = "fcm",
     @SerialName("push_ntfy_server") val pushNtfyServer: String = "",
     val pickers: Boolean = false,
+    /** Release version of the gateway plugin (repo-root VERSION file). */
+    @SerialName("app_version") val appVersion: String = "",
 )
 
 @Serializable
@@ -169,6 +152,9 @@ data class ChannelInfo(
     @SerialName("is_default") val isDefault: Boolean = false,
     @SerialName("parent_chat_id") val parentChatId: String? = null,
     val archived: Boolean = false,
+    /** Unix timestamp (seconds) when the channel/thread was created; 0.0 if
+     *  the gateway predates the field. Used to order threads newest-first. */
+    val created: Double = 0.0,
     /** Gateway minted this thread for an incoming message (auto-threading);
      *  the name is a derived title, upgraded by the LLM via channel.renamed. */
     val auto: Boolean = false,
@@ -195,6 +181,11 @@ data class HelloAckPayload(
      *  push backend (0 = never). Sync-replayed frames at/below it must not
      *  re-post system notifications (dedupe, docs/08 §8.7). */
     @SerialName("last_pushed_cursor") val lastPushedCursor: Long = 0,
+    /** Per-device token minted at pairing (docs/09 §9.3). The app stores it
+     *  and presents it INSTEAD of the shared IRIS_TOKEN from then on; the
+     *  gateway can revoke it per device. Empty when the gateway didn't
+     *  issue one (legacy). */
+    @SerialName("device_token") val deviceToken: String = "",
 )
 
 // ── message (server -> app) ─────────────────────────────────────────────
@@ -241,21 +232,6 @@ data class MediaRef(
     val filename: String,
 )
 
-@Serializable
-data class MediaUploadStartPayload(
-    @SerialName("media_ref") val mediaRef: String,
-    val kind: String,
-    val mime: String,
-    val filename: String,
-    val size: Long,
-)
-
-@Serializable
-data class MediaUploadEndPayload(
-    @SerialName("media_ref") val mediaRef: String,
-    @SerialName("sha256") val sha256: String,
-)
-
 @Serializable
 data class MediaUploadAckPayload(
     val ok: Boolean,
@@ -272,16 +248,6 @@ data class MediaOfferPayload(
     @SerialName("message_id") val messageId: String? = null,
 )
 
-@Serializable
-data class MediaPullPayload(
-    @SerialName("media_id") val mediaId: String,
-)
-
-@Serializable
-data class MediaPullEndPayload(
-    val ok: Boolean,
-)
-
 // ── M2: streaming frames (server -> app) ────────────────────────────────
 
 @Serializable
@@ -315,6 +281,9 @@ data class ToolStartPayload(
     val name: String,
     val preview: String? = null,
     val args: JsonElement? = null,
+    /** Cosmetic per-tool glyph resolved server-side (hermes get_tool_emoji);
+     *  absent for unknown tools — the UI falls back to its default. */
+    val emoji: String? = null,
 )
 
 @Serializable
@@ -333,6 +302,30 @@ data class ToolEndPayload(
     @SerialName("output_preview") val outputPreview: String? = null,
 )
 
+// ── todo.update (server -> app): the agent's live todo list ────────────────
+
+/** One item of the agent's todo list (hermes `todo` tool). [status] is one
+ *  of [TODO_PENDING], [TODO_IN_PROGRESS], [TODO_COMPLETED], [TODO_CANCELLED]. */
+@Serializable
+data class TodoItem(
+    val id: String,
+    val content: String,
+    val status: String,
+)
+
+const val TODO_PENDING = "pending"
+const val TODO_IN_PROGRESS = "in_progress"
+const val TODO_COMPLETED = "completed"
+const val TODO_CANCELLED = "cancelled"
+
+/** The agent's FULL current todo list for a lane (last-write-wins; the
+ *  gateway emits it whenever the `todo` tool completes — the tool result is
+ *  authoritative even for merge writes — and as a snapshot on connect). */
+@Serializable
+data class TodoUpdatePayload(
+    val todos: List<TodoItem> = emptyList(),
+)
+
 // ── M2: commentary frame (server -> app) ────────────────────────────────
 
 @Serializable
@@ -353,7 +346,7 @@ data class MessageSendPayload(
     @SerialName("auto_thread") val autoThread: Boolean = false,
 )
 
-// ── typing / error / ping ───────────────────────────────────────────────
+// ── typing / error ──────────────────────────────────────────────────────
 
 @Serializable
 data class TypingPayload(
@@ -366,11 +359,6 @@ data class ErrorPayload(
     val message: String,
 )
 
-@Serializable
-data class PingPayload(
-    val ts: Long? = null,
-)
-
 // ── M3: channel directory (app -> server requests) ──────────────────────
 
 @Serializable
@@ -459,6 +447,27 @@ data class CommandsCatalogPayload(
     val commands: List<SlashCommand> = emptyList(),
 )
 
+// ── picker.choice / picker.select (interactive slash-command menus) ────────
+
+/** One option in a choice picker. [isCurrent] marks the active value (the
+ *  UI shows a ✓ on it, like Telegram's inline keyboards). */
+@Serializable
+data class PickerChoice(
+    val value: String,
+    val label: String = value,
+    @SerialName("is_current") val isCurrent: Boolean = false,
+)
+
+/** An interactive choice picker (one tap → one value), sent by finite-choice
+ *  slash commands (/reasoning, /fast, …). The app renders it as a card with
+ *  buttons and answers via [pickerSelectFrame]. */
+@Serializable
+data class PickerChoicePayload(
+    @SerialName("picker_id") val pickerId: String,
+    val title: String,
+    val choices: List<PickerChoice> = emptyList(),
+)
+
 // ── M3: sync (reconnect catch-up) ───────────────────────────────────────
 
 @Serializable
@@ -508,12 +517,9 @@ data class MessageDeletedPayload(
 // ── M5: push / notifications ────────────────────────────────────────────
 
 /** Notification kinds (mirror of protocol.NOTIF_*). */
-const val NOTIF_MESSAGE = "message"
 const val NOTIF_APPROVAL = "approval"
 const val NOTIF_CLARIFY = "clarify"
 const val NOTIF_CRON = "cron"
-const val NOTIF_CHANNEL = "channel"
-const val NOTIF_OUTBOX_PRUNED = "outbox_pruned"
 
 /** Kinds that stay on screen until dismissed (docs/08 §8.3). */
 val HIGH_PRIORITY_NOTIF_KINDS = setOf(NOTIF_APPROVAL, NOTIF_CLARIFY, NOTIF_CRON)
@@ -548,28 +554,6 @@ data class StatusPayload(
 
 // ── Frame builders ──────────────────────────────────────────────────────
 
-fun helloFrame(
-    token: String,
-    deviceId: String,
-    deviceName: String,
-    fcmToken: String? = null,
-    ntfyTopic: String? = null,
-): Frame =
-    Frame(
-        type = TYPE_HELLO,
-        payload =
-            IrisJson.instance.encodeToJsonElement(
-                HelloPayload.serializer(),
-                HelloPayload(
-                    token = token,
-                    deviceId = deviceId,
-                    deviceName = deviceName,
-                    fcmToken = fcmToken,
-                    ntfyTopic = ntfyTopic,
-                ),
-            ),
-    )
-
 fun messageSendFrame(
     id: Int,
     chatId: String,
@@ -590,8 +574,6 @@ fun messageSendFrame(
             ),
     )
 
-fun pingFrame(): Frame = Frame(type = TYPE_PING, payload = IrisJson.instance.encodeToJsonElement(PingPayload.serializer(), PingPayload()))
-
 // ── M3 frame builders ───────────────────────────────────────────────────
 
 fun channelCreateFrame(
@@ -710,6 +692,24 @@ fun searchFrame(
  *  Answered by a `commands.catalog` frame carrying the same id. */
 fun commandsCatalogFrame(id: Int): Frame = Frame(id = id, type = TYPE_COMMANDS_CATALOG)
 
+/** Answer an interactive picker (picker.choice) with the chosen value.
+ *  The server runs the command's selection callback and delivers its reply
+ *  as a normal message in the picker's chat. */
+fun pickerSelectFrame(
+    id: Int,
+    pickerId: String,
+    value: String,
+): Frame =
+    Frame(
+        id = id,
+        type = TYPE_PICKER_SELECT,
+        payload =
+            buildJsonObject {
+                put("picker_id", pickerId)
+                put("value", value)
+            },
+    )
+
 fun syncFrame(
     id: Int,
     cursor: Long,
@@ -765,55 +765,6 @@ fun messageDeleteFrame(
             },
     )
 
-// ── M4 frame builders ────────────────────────────────────────────────────
-
-fun mediaUploadStartFrame(
-    id: Int,
-    mediaRef: String,
-    kind: String,
-    mime: String,
-    filename: String,
-    size: Long,
-): Frame =
-    Frame(
-        id = id,
-        type = TYPE_MEDIA_UPLOAD_START,
-        payload =
-            IrisJson.instance.encodeToJsonElement(
-                MediaUploadStartPayload.serializer(),
-                MediaUploadStartPayload(mediaRef, kind, mime, filename, size),
-            ),
-    )
-
-fun mediaUploadEndFrame(
-    id: Int,
-    mediaRef: String,
-    sha256: String,
-): Frame =
-    Frame(
-        id = id,
-        type = TYPE_MEDIA_UPLOAD_END,
-        payload =
-            IrisJson.instance.encodeToJsonElement(
-                MediaUploadEndPayload.serializer(),
-                MediaUploadEndPayload(mediaRef, sha256),
-            ),
-    )
-
-fun mediaPullFrame(
-    id: Int,
-    mediaId: String,
-): Frame =
-    Frame(
-        id = id,
-        type = TYPE_MEDIA_PULL,
-        payload =
-            IrisJson.instance.encodeToJsonElement(
-                MediaPullPayload.serializer(),
-                MediaPullPayload(mediaId),
-            ),
-    )
-
 // ── M5 frame builders ───────────────────────────────────────────────────
 
 fun fcmRegisterFrame(

app/shared/src/commonMain/kotlin/iris/state/IrisController.kt

@@ -8,6 +8,7 @@ import iris.data.MessageItem
 import iris.data.MsgStatus
 import iris.data.SecureStore
 import iris.media.MediaCache
+import iris.media.isValidMediaId
 import iris.media.kindFromMime
 import iris.net.GatewayClient
 import iris.platform.PickedFile
@@ -28,6 +29,7 @@ import iris.protocol.MessagePayload
 import iris.protocol.MessageStopPayload
 import iris.protocol.NotificationPayload
 import iris.protocol.ROLE_ASSISTANT
+import iris.protocol.ROLE_USER
 import iris.protocol.ReadReceiptPayload
 import iris.protocol.SearchHit
 import iris.protocol.SearchResultsPayload
@@ -44,16 +46,17 @@ import iris.protocol.TYPE_ERROR
 import iris.protocol.TYPE_HISTORY
 import iris.protocol.TYPE_MEDIA_OFFER
 import iris.protocol.TYPE_MESSAGE
-import iris.protocol.TYPE_MESSAGE_DELETE
 import iris.protocol.TYPE_MESSAGE_DELETED
 import iris.protocol.TYPE_MESSAGE_START
 import iris.protocol.TYPE_MESSAGE_STOP
 import iris.protocol.TYPE_MESSAGE_UPDATE
 import iris.protocol.TYPE_NOTIFICATION
+import iris.protocol.TYPE_PICKER_CHOICE
 import iris.protocol.TYPE_READ_RECEIPT
 import iris.protocol.TYPE_SEARCH_RESULTS
 import iris.protocol.TYPE_STATUS
 import iris.protocol.TYPE_SYNC_DONE
+import iris.protocol.TYPE_TODO_UPDATE
 import iris.protocol.TYPE_TOOL_END
 import iris.protocol.TYPE_TOOL_PROGRESS
 import iris.protocol.TYPE_TOOL_START
@@ -70,14 +73,18 @@ import iris.protocol.channelSetDefaultFrame
 import iris.protocol.commandsCatalogFrame
 import iris.protocol.historyFrame
 import iris.protocol.messageDeleteFrame
+import iris.protocol.pickerSelectFrame
 import iris.protocol.searchFrame
 import iris.protocol.syncFrame
 import iris.ui.theme.Backdrop
 import iris.ui.theme.BackgroundMode
 import iris.ui.theme.UserTheme
 import iris.util.IrisLog
+import iris.util.STREAM_SMOOTHNESS_MAX
+import iris.util.STREAM_SMOOTHNESS_MIN
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
 import kotlinx.coroutines.SupervisorJob
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.MutableStateFlow
@@ -85,7 +92,11 @@ import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.debounce
 import kotlinx.coroutines.launch
+import java.util.Collections
+import java.util.concurrent.atomic.AtomicLong
 import kotlin.random.Random
+import kotlin.time.TimeMark
+import kotlin.time.TimeSource
 
 /**
  * App-level controller (M3): owns the GatewayClient + ChatStore + ChannelStore,
@@ -133,19 +144,97 @@ class IrisController(
     }
 
     /** Home channel id (from hello.ack; default until then). */
-    private val _homeChannel = MutableStateFlow("android:default")
+    private val _homeChannel = MutableStateFlow("default")
     val homeChannel: StateFlow<String> = _homeChannel.asStateFlow()
 
     /** Lanes whose full history has been loaded this session (in-memory; reset
      *  on a process death, which is exactly when a reload is needed). The
      *  `sync` delta can seed a lane with recent frames without it being opened,
-     *  so "lane is empty" is not a reliable first-open signal. */
-    private val historyLoaded = mutableSetOf<String>()
+     *  so "lane is empty" is not a reliable first-open signal. Synchronized:
+     *  written by the frame collector, read by the UI thread (loadHistory). */
+    private val historyLoaded = Collections.synchronizedSet(mutableSetOf<String>())
 
-    /** Gateway health state (M5: status frame; null = never received). */
+    /** Gateway health state (M5: status frame; null = never received).
+     *  Note: "restarting" is deliberately NOT stored here — it posts the
+     *  chat notice immediately (see TYPE_STATUS) instead of showing a banner. */
     private val _gatewayStatus = MutableStateFlow<String?>(null)
     val gatewayStatus: StateFlow<String?> = _gatewayStatus.asStateFlow()
 
+    /**
+     * Release version of the connected gateway (hello.ack `server_caps.app_version`,
+     * the repo-root VERSION file). Empty when not connected or the gateway is
+     * old enough not to report it. Settings shows it next to the app version
+     * and hints when the two differ.
+     */
+    private val _gatewayVersion = MutableStateFlow("")
+    val gatewayVersion: StateFlow<String> = _gatewayVersion.asStateFlow()
+
+    // ── M8: unread indicator ──────────────────────────────────────────────
+
+    /** True while the current lane's newest content sits at the bottom of the
+     *  viewport (set by the UI from its scroll state). Used to decide whether
+     *  an incoming message in the current lane is "being read" (not unread).
+     *  @Volatile: written on the UI thread, read on the frame-handler
+     *  coroutine (Dispatchers.Default). */
+    @Volatile
+    var currentLaneAtBottom: Boolean = true
+
+    /** App foreground state (M8: clear the current lane's unread when the app
+     *  is focused and the user is at the bottom). Mirrors the platform bridge
+     *  ([isAppForeground]); the bridges push changes via [setForeground]. */
+    private val _foreground = MutableStateFlow(isAppForeground())
+    val foreground: StateFlow<Boolean> = _foreground.asStateFlow()
+
+    /** Bridge entry point: the platform shell reports a focus change. */
+    fun setForeground(fg: Boolean) {
+        _foreground.value = fg
+    }
+
+    /** M8: the last message id whose arrival incremented [lane]'s unread
+     *  badge. The same finalized message can be delivered twice (live SSE
+     *  plus the sync replay after a push-triggered reconnect) — only the
+     *  first delivery may count. Frame-handler coroutine only. */
+    private val countedMessageIds = HashMap<String, String>()
+
+    /** M5/M8: when a high-priority notification banner (cron/approval/clarify)
+     *  was last posted per lane. Cron delivery = notification frame + message
+     *  frame; the banner already announced the delivery, so the accompanying
+     *  message frame must not post a second system notification. Frame-handler
+     *  coroutine only. */
+    private val lastHighPriorityBannerAt = HashMap<String, TimeMark>()
+
+    /** M8: a finalized assistant message arrived in [lane]. Count it as unread
+     *  unless the user is actively reading that lane right now (it is the
+     *  current lane, the app is focused, and the newest content is at the
+     *  bottom of the viewport). [messageId] dedupes redeliveries of the same
+     *  frame (see [countedMessageIds]). */
+    private fun noteIncomingAssistantMessage(
+        lane: String,
+        messageId: String?,
+    ) {
+        if (messageId != null && countedMessageIds[lane] == messageId) return
+        val beingRead = lane == chat.currentLane.value && isAppForeground() && currentLaneAtBottom
+        if (!beingRead) {
+            if (messageId != null) countedMessageIds[lane] = messageId
+            chat.markUnread(lane)
+        }
+    }
+
+    /** M8: the user is now viewing the current lane's newest content — clear
+     *  its unread count. */
+    fun markCurrentLaneRead() {
+        chat.markLaneRead(chat.currentLane.value)
+    }
+
+    // Latches the restart pair: set when the "restarting" notice is posted
+    // (on the gateway's status{restarting} frame), consumed by the matching
+    // "online" notice on the next reconnect. A plain network drop never sets
+    // it, so it never produces an "online" notice. @Volatile: written on the
+    // frame-handler coroutine, read on the state-collector coroutine
+    // (Dispatchers.Default).
+    @Volatile
+    private var restartAnnounced = false
+
     /** M5: highest outbox cursor already delivered to this device via the
      *  push backend (from hello.ack; 0 = never). Sync-replayed frames with
      *  `cursor <= lastPushedCursor` already woke the device via push, so the
@@ -158,6 +247,37 @@ class IrisController(
      *  via push (live frames carry no cursor and are never suppressed). */
     private fun isPushedReplay(frame: iris.protocol.Frame): Boolean = frame.cursor?.let { it <= lastPushedCursor } ?: false
 
+    /** M5: highest outbox cursor this device has CONSUMED (applied from the
+     *  event stream). The stream resumes from [store.syncCursor] on every
+     *  (re)connect, so this high-water mark is persisted there (debounced +
+     *  on backgrounding): without it, a restart re-delivers every frame
+     *  consumed since the last `sync.done` — and replayed `notification`
+     *  frames re-showed their banner on every app reopen (docs/08 §8.4).
+     *  @Volatile: written on the frame-handler coroutine, read on the
+     *  foreground/state collectors. */
+    @Volatile
+    private var consumedCursor: Long = store.syncCursor
+
+    /** Debounced persist of [consumedCursor] (one store write per burst,
+     *  not per frame). */
+    private var cursorSaveJob: Job? = null
+
+    private fun persistCursorDebounced() {
+        cursorSaveJob?.cancel()
+        cursorSaveJob =
+            scope.launch {
+                delay(CACHE_SAVE_DEBOUNCE_MS)
+                // maxOf: sync.done may have advanced the store past us.
+                store.syncCursor = maxOf(store.syncCursor, consumedCursor)
+            }
+    }
+
+    /** Flush [consumedCursor] to the store now (app backgrounding / exit). */
+    private fun persistCursorNow() {
+        cursorSaveJob?.cancel()
+        store.syncCursor = maxOf(store.syncCursor, consumedCursor)
+    }
+
     // ── M3: threads toggle (per-app for now; per-channel lands later) ─────
     // Persisted (Settings → "Threads").
     private val _threadsEnabled = MutableStateFlow(store.threadsEnabled)
@@ -181,6 +301,21 @@ class IrisController(
         chat.streamingEnabled = _streamingEnabled.value
     }
 
+    // Streaming smoothness (Settings → "Streaming speed"): seconds between
+    // visible text updates while streaming (lower = faster/smoother).
+    // Per-device display preference; applied on the fly by the reveal loop
+    // in MarkdownText (docs/05 §5.1).
+    private val _streamSmoothness =
+        MutableStateFlow(store.streamSmoothness.coerceIn(STREAM_SMOOTHNESS_MIN, STREAM_SMOOTHNESS_MAX))
+    val streamSmoothness: StateFlow<Float> = _streamSmoothness.asStateFlow()
+
+    fun setStreamSmoothness(value: Float) {
+        val clamped = value.coerceIn(STREAM_SMOOTHNESS_MIN, STREAM_SMOOTHNESS_MAX)
+        if (clamped == _streamSmoothness.value) return
+        _streamSmoothness.value = clamped
+        store.streamSmoothness = clamped
+    }
+
     // ── Reasoning auto-collapse (Settings → "Reasoning") ───────────────────
     // Persisted. When on, long reasoning blocks start collapsed (short ones
     // stay expanded); when off, all reasoning blocks start expanded.
@@ -217,6 +352,14 @@ class IrisController(
     }
 
     companion object {
+        /** Max simultaneous banners; persistent ones are exempt from the cap. */
+        private const val MAX_BANNERS = 5
+
+        /** Window in which a high-priority banner suppresses the system
+         *  notification for its accompanying message frame (mirrors the
+         *  gateway's push-coalesce window, classify._PUSH_COALESCE_S). */
+        private const val BANNER_NOTIFY_SUPPRESS_MS = 5_000L
+
         const val FONT_SCALE_MIN = 0.8f
         const val FONT_SCALE_MAX = 1.5f
 
@@ -328,8 +471,12 @@ class IrisController(
     // ── M4: media ─────────────────────────────────────────────────────────
     private val mediaCache = MediaCache(mediaCacheBaseDir())
 
-    /** A composer attachment: picked file being uploaded (or uploaded). */
+    /** A composer attachment: picked file being uploaded (or uploaded).
+     *  [id] is a per-attachment identity used to apply the upload result to
+     *  the right placeholder — matching by filename would cross-update two
+     *  files picked with the same name (M-6). */
     data class PendingAttachment(
+        val id: String,
         val filename: String,
         val mime: String,
         val size: Long,
@@ -358,7 +505,10 @@ class IrisController(
 
     private val _banners = MutableStateFlow<List<Banner>>(emptyList())
     val banners: StateFlow<List<Banner>> = _banners.asStateFlow()
-    private var bannerSeq = 0L
+
+    // Atomic: pushBanner can be called from the frame collector and the UI
+    // thread; a lost update would mint a duplicate banner id.
+    private val bannerSeq = AtomicLong(0)
 
     fun dismissBanner(id: Long) {
         _banners.value = _banners.value.filterNot { it.id == id }
@@ -372,8 +522,13 @@ class IrisController(
         threadId: String?,
     ) {
         val persistent = kind in HIGH_PRIORITY_NOTIF_KINDS
-        val banner = Banner(bannerSeq++, kind, title, body, chatId, threadId, persistent)
-        _banners.value = (_banners.value + banner).takeLast(5)
+        val banner = Banner(bannerSeq.getAndIncrement(), kind, title, body, chatId, threadId, persistent)
+        // Persistent banners (approval / clarify / cron) are never evicted by
+        // the cap; only the transient ones compete for the remaining slots.
+        val merged = _banners.value + banner
+        val keptPersistent = merged.filter { it.persistent }
+        val room = (MAX_BANNERS - keptPersistent.size).coerceAtLeast(0)
+        _banners.value = keptPersistent + merged.filterNot { it.persistent }.takeLast(room)
         if (!persistent) {
             scope.launch {
                 delay(5_000)
@@ -396,7 +551,14 @@ class IrisController(
     ) {
         if (isAppForeground()) return
         if (text.isBlank()) return
-        val id = chatId ?: "android:default"
+        // A high-priority banner (cron/approval/clarify) for this lane just
+        // announced this delivery — don't stack a second notification for the
+        // accompanying message frame.
+        chatId?.let { cid ->
+            val mark = lastHighPriorityBannerAt[chat.laneKey(cid, threadId)]
+            if (mark != null && mark.elapsedNow().inWholeMilliseconds < BANNER_NOTIFY_SUPPRESS_MS) return
+        }
+        val id = chatId ?: "default"
         val chatName = channels.byId(id)?.name
         postSystemNotification(id, chatName, chatName ?: "Iris", preview(text), threadId)
     }
@@ -450,17 +612,55 @@ class IrisController(
         scope.launch {
             chat.currentLane.debounce(CACHE_SAVE_DEBOUNCE_MS).collect { chatDb.metaPut(META_LAST_LANE, it) }
         }
+        // M8: when the app returns to the foreground and the user is at the
+        // bottom of the current lane, its newest content is on screen — clear
+        // any unread that accumulated while backgrounded. (The UI separately
+        // clears on scroll-to-bottom while already focused.)
+        scope.launch {
+            foreground.collect { fg ->
+                if (!fg) persistCursorNow()
+                if (fg && currentLaneAtBottom) markCurrentLaneRead()
+            }
+        }
         scope.launch {
             client.events.collect { frame ->
                 try {
+                    // Consume the frame's outbox cursor BEFORE dispatching:
+                    // a frame that arrives a second time (SSE catch-up and
+                    // the explicit sync replay both carry the cursor) must
+                    // not re-notify — only its first consumption may.
+                    val cursor = frame.cursor
+                    val alreadyConsumed = cursor != null && cursor <= consumedCursor
+                    if (cursor != null && cursor > consumedCursor) {
+                        consumedCursor = cursor
+                        persistCursorDebounced()
+                    }
                     when (frame.type) {
+                        TYPE_TOOL_START,
+                        TYPE_TOOL_PROGRESS,
+                        TYPE_TOOL_END,
+                        -> {
+                            // Tool cards are restored from the local cache
+                            // (anchored to their message); they are not part
+                            // of `history`. A sync replay (frame carries a
+                            // cursor) would create duplicate cards appended
+                            // AFTER the lane's restored messages — drop
+                            // them. Live tool frames (no cursor) flow through
+                            // as usual.
+                            if (frame.cursor == null) chat.onFrame(frame)
+                        }
+
+                        TYPE_TODO_UPDATE -> {
+                            // The agent's live todo list (last-write-wins). Ephemeral:
+                            // never outboxed, so it never carries a cursor and is
+                            // always applied (a reconnect snapshot just re-sets it).
+                            chat.onFrame(frame)
+                        }
+
                         TYPE_MESSAGE,
                         TYPE_MESSAGE_START,
                         TYPE_MESSAGE_UPDATE,
                         TYPE_MESSAGE_STOP,
-                        TYPE_TOOL_START,
-                        TYPE_TOOL_PROGRESS,
-                        TYPE_TOOL_END,
                         TYPE_COMMENTARY,
                         TYPE_MEDIA_OFFER,
                         -> {
@@ -478,7 +678,13 @@ class IrisController(
                             when (frame.type) {
                                 TYPE_MESSAGE_STOP -> {
                                     frame.payloadAs<MessageStopPayload>()?.let {
-                                        if (!isPushedReplay(frame)) {
+                                        // M8: a finalized streaming reply is new
+                                        // content — count it as unread unless the
+                                        // user is reading this lane right now.
+                                        frame.chatId?.let { cid ->
+                                            noteIncomingAssistantMessage(chat.laneKey(cid, frame.threadId), it.messageId)
+                                        }
+                                        if (!alreadyConsumed && !isPushedReplay(frame)) {
                                             notifyMessageIfBackgrounded(frame.chatId, frame.threadId, it.finalText)
                                         }
                                     }
@@ -486,11 +692,17 @@ class IrisController(
 
                                 TYPE_MESSAGE -> {
                                     frame.payloadAs<MessagePayload>()?.let {
-                                        if (it.role == ROLE_ASSISTANT && !isPushedReplay(frame)) {
+                                        if (it.role == ROLE_ASSISTANT) {
+                                            // M8: a finalized (non-streaming) reply.
+                                            frame.chatId?.let { cid ->
+                                                noteIncomingAssistantMessage(chat.laneKey(cid, frame.threadId), it.messageId)
+                                            }
+                                            if (!alreadyConsumed && !isPushedReplay(frame)) {
                                                 notifyMessageIfBackgrounded(frame.chatId, frame.threadId, it.text)
                                             }
                                         }
                                     }
+                                }
 
                                 else -> {
                                     Unit
@@ -547,14 +759,25 @@ class IrisController(
                             _searching.value = false
                         }
 
+                        TYPE_PICKER_CHOICE -> {
+                            // Interactive slash-command menu (/reasoning, /fast, …):
+                            // rendered as a tappable card in the lane.
+                            chat.onFrame(frame)
+                        }
+
                         TYPE_COMMANDS_CATALOG -> {
                             frame.payloadAs<CommandsCatalogPayload>()?.let { _slashCommands.value = it.commands }
                         }
 
                         TYPE_SYNC_DONE -> {
                             // Replayed frames already flowed through [events]; the
-                            // cursor is authoritative server-side (outbox).
-                            frame.payloadAs<SyncDonePayload>()?.let { store.syncCursor = it.cursor }
+                            // cursor is authoritative server-side (outbox). Keep the
+                            // consumed high-water mark in step (it may be ahead of
+                            // us — live frames consumed after the replay started).
+                            frame.payloadAs<SyncDonePayload>()?.let {
+                                consumedCursor = maxOf(consumedCursor, it.cursor)
+                                store.syncCursor = maxOf(store.syncCursor, it.cursor)
+                            }
                         }
 
                         TYPE_HISTORY -> {
@@ -579,18 +802,36 @@ class IrisController(
                                     )
                                     // Mark the lane loaded only when the response
                                     // is actually processed: if the request or
-                                    // response is lost in a WS drop, the lane
+                                    // response is lost in a connection drop, the lane
                                     // stays unmarked and the next (re)connect
                                     // retries it.
                                     historyLoaded.add(lane)
+                                    // Offline sends that never arrived go out
+                                    // now (delivered duplicates were dropped by
+                                    // loadHistory's dedupe above).
+                                    reconcileFailedSends(lane)
                                 }
                             }
                         }
 
                         TYPE_NOTIFICATION -> {
                             frame.payloadAs<NotificationPayload>()?.let { p ->
+                                // alreadyConsumed: this frame was applied earlier
+                                // (its cursor is at/below the high-water mark) —
+                                // a duplicate delivery (restart catch-up or the
+                                // sync replay) must not re-show the banner.
+                                if (!alreadyConsumed) {
                                     pushBanner(p.kind, p.title, p.body, p.chatId, p.threadId)
-                                // M5: WS is live but the app is backgrounded — the
+                                    // Cron delivery = notification frame + message frame: remember
+                                    // that the banner announced this lane so the message frame
+                                    // doesn't post a second system notification.
+                                    if (p.kind in HIGH_PRIORITY_NOTIF_KINDS) {
+                                        p.chatId?.let { cid ->
+                                            lastHighPriorityBannerAt[chat.laneKey(cid, p.threadId)] =
+                                                TimeSource.Monotonic.markNow()
+                                        }
+                                    }
+                                    // M5: the connection is live but the app is backgrounded — the
                                     // in-app banner is invisible, so mirror to a system
                                     // notification (the push backend only fires when
                                     // there is no live subscriber). Suppressed for
@@ -601,6 +842,7 @@ class IrisController(
                                     }
                                 }
                             }
+                        }
 
                         TYPE_TYPING -> {
                             frame.payloadAs<TypingPayload>()?.let { _typing.value = it.on }
@@ -619,7 +861,22 @@ class IrisController(
                         }
 
                         TYPE_STATUS -> {
-                            frame.payloadAs<StatusPayload>()?.let { _gatewayStatus.value = it.state }
+                            frame.payloadAs<StatusPayload>()?.let { st ->
+                                if (st.state == "restarting") {
+                                    // Gateway is going down (restart/stop):
+                                    // post the notice IMMEDIATELY — the
+                                    // connection can take up to the ping timeout
+                                    // (~20 s) to actually drop, and waiting
+                                    // for that transition would delay the
+                                    // message. No banner for this state: the
+                                    // chat notice replaces it (the reconnect
+                                    // banner covers the wait).
+                                    restartAnnounced = true
+                                    chat.addSystemMessage(homeChannel.value, GATEWAY_RESTARTING_MSG)
+                                } else {
+                                    _gatewayStatus.value = st.state
+                                }
+                            }
                         }
 
                         TYPE_ERROR -> {
@@ -647,8 +904,12 @@ class IrisController(
                 val prev = prevState
                 prevState = s
                 if (s is GatewayClient.State.Connected) {
+                    // Clear any stale "restarting" latch from the previous
+                    // down phase (the gateway's own status{online} frame
+                    // follows on hello.ack and re-asserts the truth).
+                    _gatewayStatus.value = "online"
                     // The lane/history fast path runs on [client.onHelloAck]
-                    // (promptly, on the WS thread) — see onConnectedLane. Here
+                    // (promptly, on the SSE thread) — see onConnectedLane. Here
                     // we do the non-time-critical connect work.
                     // M5: refresh the push-dedupe watermark (docs/08 §8.7).
                     lastPushedCursor = s.lastPushedCursor
@@ -666,23 +927,26 @@ class IrisController(
                     // Slash-command catalog for the composer's "/" drawer
                     // (static per gateway run; re-fetched on every (re)connect).
                     requestCommandsCatalog()
-                    // Gateway came back after a restart -> announce it (hermes
-                    // routine, same icon + wording on all platforms). The core
-                    // does not send a startup/online notice to this platform, so
-                    // the app adds it.
-                    if (prev is GatewayClient.State.Reconnecting) {
+                    // Gateway is back from a RESTART (not just a network
+                    // drop) -> post the second half of the restart pair.
+                    if (restartAnnounced) {
+                        restartAnnounced = false
                         chat.addSystemMessage(homeChannel.value, GATEWAY_ONLINE_MSG)
                     }
                 } else if (s is GatewayClient.State.Reconnecting && prev is GatewayClient.State.Connected) {
-                    // Gateway went away (restart / network drop): announce it
-                    // (hermes routine, same icon + wording on all platforms) and
-                    // close the in-flight turn's dangling tool cards / streaming
-                    // bubble (nothing spins forever). The app is the source of
-                    // truth for the "restarting" notice (the server's commentary
-                    // frame is dropped in ChatStore), so the order is guaranteed:
-                    // restarting (here) before online (on reconnect).
-                    chat.addSystemMessage(homeChannel.value, GATEWAY_RESTARTING_MSG)
+                    // Gateway went away. The restart notice was already
+                    // posted on the status{restarting} frame (immediately,
+                    // not on this transition — the socket can take ~20 s to
+                    // drop); a plain network drop posts nothing, the
+                    // reconnect banner + status bubble cover it. Here we
+                    // just close the in-flight turn's dangling tool cards /
+                    // streaming bubble (nothing spins forever).
                     chat.finalizeInterrupted()
+                    // The gateway is gone — clear the advertised version so
+                    // Settings doesn't keep showing it (and the mismatch
+                    // hint) while disconnected (matches the KDoc: empty when
+                    // not connected).
+                    _gatewayVersion.value = ""
                 }
             }
         }
@@ -690,17 +954,21 @@ class IrisController(
         if (store.ntfyTopic.isBlank()) {
             store.ntfyTopic = "iris-${store.deviceId}-${Random.nextLong(1_000_000_000L, 9_999_999_999L)}"
         }
-        client.startHeartbeat()
-        // Prompt fast path: seed the channel directory + load the active lane's
-        // history the moment hello.ack lands (on the WS thread), not after the
-        // state collector (which can be starved for seconds on startup). This
-        // gets the history request out early so its response lands inside a
-        // flaky network's window.
         client.onHelloAck = { connected ->
             try {
                 onConnectedLane(connected)
+                // Auto-resend offline sends AFTER the outbox replay has been
+                // processed: replayed frames precede the hello on the stream,
+                // but the frame collector may still be draining them — a
+                // delivered message whose POST response was lost must
+                // reconcile (echo replaces the failed bubble) before we
+                // decide to resend it.
+                scope.launch {
+                    delay(2_000)
+                    reconcileAllFailedSends()
+                }
             } catch (e: Exception) {
-                // Must not throw on the WS thread (would break the connection).
+                // Must not throw on the SSE thread (would break the connection).
                 IrisLog.e("onConnectedLane failed: $e")
             }
         }
@@ -708,7 +976,7 @@ class IrisController(
     }
 
     /**
-     * Fast-path connect handler (runs on the WS thread via [GatewayClient.onHelloAck],
+     * Fast-path connect handler (runs on the gateway callback thread via [GatewayClient.onHelloAck],
      * promptly on every (re)connect). Seeds the channel directory and loads the
      * active lane's full history. The lane is the last-viewed one (restored from
      * the local cache) if it still exists on the server, else the home channel.
@@ -717,7 +985,11 @@ class IrisController(
      * refreshes (skipped on a plain reconnect via historyLoaded).
      */
     private fun onConnectedLane(connected: GatewayClient.State.Connected) {
-        channels.setAll(connected.channels)
+        _gatewayVersion.value = connected.caps.appVersion
+        // Never wipe the directory with an empty list: the long-poll restore
+        // path carries no channels when there was no prior SSE hello (lastAck
+        // null), and the cached directory is still valid then.
+        if (connected.channels.isNotEmpty()) channels.setAll(connected.channels)
         val home = connected.channels.firstOrNull { it.isDefault }?.chatId
         _homeChannel.value = home ?: ChatStore.DEFAULT_LANE
         if (home == null) return
@@ -755,6 +1027,18 @@ class IrisController(
 
     // ── M3: channel directory ops (server is authoritative) ───────────────
 
+    /** Answer an interactive choice picker (picker.choice card). Marks the
+     *  card resolved locally (optimistic) and sends picker.select; the
+     *  server's reply arrives as a normal message. An expired picker
+     *  (gateway restart) simply never replies. */
+    fun selectPicker(
+        pickerId: String,
+        value: String,
+    ) {
+        chat.resolvePicker(pickerId, value)
+        client.sendFrame(pickerSelectFrame(0, pickerId, value))
+    }
+
     fun createChannel(name: String) {
         val trimmed = name.trim()
         if (trimmed.isEmpty()) return
@@ -780,6 +1064,7 @@ class IrisController(
     }
 
     fun setDefaultChannel(chatId: String) {
+        channels.setDefault(chatId)
         client.sendFrame(channelSetDefaultFrame(0, chatId))
     }
 
@@ -788,6 +1073,7 @@ class IrisController(
         chatId: String,
         on: Boolean,
     ) {
+        channels.setFavorite(chatId, on)
         client.sendFrame(channelFavoriteFrame(0, chatId, on))
     }
 
@@ -797,6 +1083,7 @@ class IrisController(
         chatId: String,
         on: Boolean,
     ) {
+        channels.setAutomation(chatId, on)
         client.sendFrame(channelSetAutomationFrame(0, chatId, on))
     }
 
@@ -807,6 +1094,7 @@ class IrisController(
         icon: String?,
         color: String?,
     ) {
+        channels.setIcon(chatId, icon, color)
         client.sendFrame(channelIconFrame(0, chatId, icon, color))
     }
 
@@ -865,9 +1153,10 @@ class IrisController(
         val lane = chat.laneKey(chatId, threadId)
         if (lane in historyLoaded) return
         // Newest page, sized to restore a full working view on restart / first
-        // open (older pages are reachable via scroll-up pagination). The lane
+        // latest page only (older pages are not paginated in the current UI).
+        // The lane
         // is marked loaded when the response arrives (TYPE_HISTORY), not here —
-        // a request lost in a WS drop must be retryable on reconnect.
+        // a request lost in a connection drop must be retryable on reconnect.
         client.sendFrame(historyFrame(0, chatId, threadId, limit = 200))
     }
 
@@ -893,11 +1182,36 @@ class IrisController(
                     localPath = it.path,
                 )
             }
-        chat.addPending(trimmed, lane, media)
-        client.sendMessage(chatId, trimmed, threadId, refs, autoThread = wantsAutoThread(trimmed, threadId, chatId))
+        val messageId = chat.addPending(trimmed, lane, media)
+        client.sendMessage(
+            chatId,
+            trimmed,
+            threadId,
+            refs,
+            autoThread = wantsAutoThread(trimmed, threadId, chatId),
+            onResult = { status -> onSendResult(messageId, status) },
+        )
         _attachments.value = emptyList()
     }
 
+    /** POST result for an optimistic send: 2xx = accepted (the echo
+     *  reconciles the bubble); 0 = no response (offline / network failure) —
+     *  keep the bubble QUEUED (Pending) and remember it: it goes out on the
+     *  next (re)connect, so the user can compose and send while the network
+     *  is down; 4xx = gateway rejection — fail the bubble (tap to retry),
+     *  no auto-retry (the gateway said no). */
+    private fun onSendResult(
+        messageId: String,
+        status: Int,
+    ) {
+        if (status in 200..299) return
+        if (status == 0) {
+            networkFailed.add(messageId)
+        } else {
+            chat.failMessage(messageId)
+        }
+    }
+
     /** Auto-threading (Settings → "Threads", docs/06 §6.3): a message in the
      *  default channel's flat lane gets its own fresh thread, AI-named by the
      *  gateway (Telegram topic-mode workflow). Threading is only active on
@@ -927,9 +1241,53 @@ class IrisController(
             threadId,
             item.media.map { it.mediaId },
             autoThread = wantsAutoThread(item.text, threadId, chatId),
+            onResult = { status -> onSendResult(messageId, status) },
         )
     }
 
+    /** User message ids that failed for NETWORK reasons (status 0 — not a
+     *  gateway error frame): queued (Pending) or failed bubbles that go out
+     *  automatically on the next (re)connect. In-memory only — a process
+     *  death leaves them as tap-to-retry (the local cache restore already
+     *  marks pending sends failed). Synchronized: written by the send-result
+     *  callback (UI thread) and the frame collector. */
+    private val networkFailed = Collections.synchronizedSet(mutableSetOf<String>())
+
+    /** Resend queued/failed user messages of [lane] now that the link is
+     *  back: a message the server already has (the POST response was lost in
+     *  the drop) was reconciled by the echo / loadHistory dedupe, so anything
+     *  still queued or Failed here never arrived — send it. */
+    private fun reconcileFailedSends(lane: String) {
+        val items = chat.lanes.value[lane] ?: return
+        for (item in items) {
+            if (item !is MessageItem || item.role != ROLE_USER || item.id !in networkFailed) {
+                continue
+            }
+            if (item.status != MsgStatus.Pending && item.status != MsgStatus.Failed) {
+                continue
+            }
+            networkFailed.remove(item.id)
+            chat.rearmForRetry(lane, item.id) // no-op for queued (already Pending)
+            val (chatId, threadId) = chat.parseLane(lane)
+            client.sendMessage(
+                chatId,
+                item.text,
+                threadId,
+                item.media.map { it.mediaId },
+                autoThread = wantsAutoThread(item.text, threadId, chatId),
+                onResult = { status -> onSendResult(item.id, status) },
+            )
+        }
+    }
+
+    /** Reconcile every lane (offline sends may sit in any lane). */
+    private fun reconcileAllFailedSends() {
+        if (networkFailed.isEmpty()) return
+        for (lane in chat.lanes.value.keys) {
+            reconcileFailedSends(lane)
+        }
+    }
+
     /** Delete the given message(s) from the current lane (long-press select →
      *  delete). The server removes them from the outbox and broadcasts
      *  `message.deleted`; the local cache drops them on that frame (or
@@ -947,8 +1305,13 @@ class IrisController(
     /** Stage a picked file: upload it, then keep it as a pending attachment. */
     fun attachFile(picked: PickedFile) {
         val kind = kindFromMime(picked.mime)
+        // Per-attachment identity: the upload result is applied to THIS
+        // placeholder by id, so two files with the same name don't
+        // cross-update (M-6).
+        val id = "att_${Random.nextLong(1_000_000_000L, 9_999_999_999L)}"
         val placeholder =
             PendingAttachment(
+                id = id,
                 filename = picked.name,
                 mime = picked.mime,
                 size = picked.size,
@@ -968,7 +1331,7 @@ class IrisController(
                 )
             _attachments.value =
                 _attachments.value.map {
-                    if (it.filename == picked.name && it.uploading) {
+                    if (it.id == id && it.uploading) {
                         result.fold(
                             { ref -> it.copy(uploading = false, mediaRef = ref) },
                             { e -> it.copy(uploading = false, error = e.message) },
@@ -987,6 +1350,12 @@ class IrisController(
     /** Pull offered media into the local cache and record the path. */
     private fun pullMedia(offer: MediaOfferPayload) {
         scope.launch {
+            // Server-controlled id: reject path-traversal values before they
+            // reach the cache or the pull URL (M-2 / S-1).
+            if (!isValidMediaId(offer.mediaId)) {
+                IrisLog.w("rejecting media offer with invalid id: ${offer.mediaId.take(40)}")
+                return@launch
+            }
             // Already cached? Skip the pull.
             mediaCache.path(offer.mediaId, offer.mime)?.let {
                 chat.setMediaLocalPath(offer.mediaId, it)
@@ -1014,6 +1383,14 @@ class IrisController(
         return Result.success(Unit)
     }
 
+    /** TLS fingerprint confirm (docs/09 §9.4): pin the gateway's presented
+     *  certificate so its self-signed cert is accepted from now on. The
+     *  caller re-runs [connect] (or the connect loop picks the pin up on its
+     *  next attempt — the trust manager reads the store live). */
+    fun confirmTlsFingerprint(fingerprint: String) {
+        store.pinnedCertFingerprint = fingerprint
+    }
+
     fun forget() {
         store.clear()
         // A different gateway means a different chat universe — wipe the cache.
@@ -1025,11 +1402,13 @@ class IrisController(
 
     fun dispose() {
         client.stop()
-        // Final synchronous flush so the newest frames survive the process
-        // death (the debounce window may still hold unsaved changes).
+        // M-17: cancel the debounce job FIRST so a pending save can't fire
+        // after our final flush and clobber it; then do the final synchronous
+        // flush so the newest frames survive the process death (the debounce
+        // window may still hold unsaved changes).
+        job.cancel()
         chatDb.saveLanes(chat.lanes.value)
         chatDb.saveChannels(channels.channels.value)
-        job.cancel()
     }
 }
 
@@ -1050,12 +1429,15 @@ private fun HistoryMessage.toMessageItem(): MessageItem =
             },
     )
 
-// Gateway restart routine (hermes, same icon + wording on all platforms). The
-// app generates both notices locally, on the down/up state transition, so the
-// order is guaranteed (restarting before online) and there is no dependency on
-// the server frame (which may be dropped on shutdown or replayed out of order
-// by the sync catch-up). The core does not send a startup/online notice to this
-// platform, and its "restarting" commentary frame is dropped in ChatStore.
+// Gateway restart pair (hermes wording, same icon on all platforms). The app
+// generates both notices locally: "restarting" IMMEDIATELY on the gateway's
+// explicit status{state=restarting} frame (broadcast on its shutdown path —
+// not on the socket-drop transition, which can lag by the ~20 s ping
+// timeout) so a plain network drop doesn't claim a restart; and "online" on
+// the next reconnect, only when the "restarting" notice was posted (the
+// restartAnnounced latch). A plain network drop produces neither —
+// connection state is shown by the banner + status bubble only. The server's
+// lifecycle commentary frames are dropped in ChatStore.
 private const val GATEWAY_RESTARTING_MSG =
     "⚠️ Gateway restarting — Your current task will be interrupted. Send any message after restart and I'll try to resume where you left off."
 private const val GATEWAY_ONLINE_MSG =

app/shared/src/commonMain/kotlin/iris/ui/MarkdownText.kt

@@ -9,17 +9,21 @@ import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.key
+import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.rememberUpdatedState
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalClipboardManager
+import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.LinkAnnotation
 import androidx.compose.ui.text.LinkInteractionListener
-import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.SpanStyle
 import androidx.compose.ui.text.TextLinkStyles
 import androidx.compose.ui.text.TextStyle
@@ -37,15 +41,28 @@ import com.mikepenz.markdown.compose.elements.MarkdownHighlightedCode
 import com.mikepenz.markdown.m3.Markdown
 import com.mikepenz.markdown.m3.markdownColor
 import com.mikepenz.markdown.m3.markdownTypography
+import com.mikepenz.markdown.model.StreamingMarkdownState
 import com.mikepenz.markdown.model.markdownAnnotator
 import com.mikepenz.markdown.model.rememberMarkdownState
+import com.mikepenz.markdown.model.rememberStreamingMarkdownState
 import com.mikepenz.markdown.utils.getUnescapedTextInNode
 import dev.snipme.highlights.Highlights
 import dev.snipme.highlights.model.SyntaxThemes
 import iris.ui.theme.IrisColors
+import iris.util.STREAM_SMOOTHNESS_DEFAULT
+import iris.util.appendChunk
+import iris.util.prepareForMarkdown
+import iris.util.preserveNewlinesAsHardBreaks
+import iris.util.preserveNewlinesAsHardBreaksStreaming
+import iris.util.revealStep
+import iris.util.streamCharsPerSecond
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import org.intellij.markdown.MarkdownElementTypes
+import org.intellij.markdown.MarkdownTokenTypes
+
+/** Reveal tick for the streaming typewriter effect (docs/05 §5.1). */
+private const val STREAM_REVEAL_TICK_MS = 50L
 
 /**
  * Renders a chat message as markdown (M8): bold / italic / underscore, GFM
@@ -53,6 +70,12 @@ import org.intellij.markdown.MarkdownElementTypes
  * syntax highlighting (```json → JSON, ```kotlin → Kotlin, …). [text] is the
  * raw markdown; [color] and [fontSize] match the surrounding bubble so the
  * rendered text blends in.
+ *
+ * While [isStreaming], the text is revealed at a steady rate (controlled by
+ * [streamSmoothness], Settings → Streaming) and parsed INCREMENTALLY: settled
+ * blocks are parsed once and never re-laid out, only the tail re-renders per
+ * tick — so the bubble stays readable instead of reflowing (and flashing raw
+ * markdown) on every gateway update.
  */
 @Composable
 fun MarkdownText(
@@ -64,11 +87,30 @@ fun MarkdownText(
     // plain highlighted code — the artifact card (and its runnable preview)
     // only appears once the message is complete.
     isStreaming: Boolean = false,
+    streamSmoothness: Float = STREAM_SMOOTHNESS_DEFAULT,
 ) {
-    val state = rememberMarkdownState(text)
+    // Static path: transform once per text change (leading blanks stripped,
+    // single newlines → hard breaks).
+    val displayText = remember(text) { text.prepareForMarkdown().preserveNewlinesAsHardBreaks() }
+    // Whether this bubble has ever been streamed. Static history messages
+    // skip the reveal pipeline entirely.
+    val hasStreamed = remember { mutableStateOf(isStreaming) }
+    if (isStreaming) hasStreamed.value = true
+    val pipeline =
+        rememberStreamingMarkdownPipeline(
+            text = text,
+            smoothness = streamSmoothness,
+            active = hasStreamed.value,
+            streaming = isStreaming,
+        )
+    // Keep the streaming renderer until the reveal catches up, even after
+    // message.stop — a fast model that dumps the whole text at once still
+    // plays out the typewriter instead of jumping to the full message.
+    val useStreaming = hasStreamed.value && (isStreaming || !pipeline.done)
     // The app is always dark-themed, so force the dark highlight palette
     // (isSystemInDarkTheme() is unreliable on desktop).
-    val highlights = remember {
+    val highlights =
+        remember {
             Highlights.Builder().theme(SyntaxThemes.default(darkMode = true))
         }
     val base = TextStyle(color = color, fontSize = fontSize)
@@ -80,7 +122,8 @@ fun MarkdownText(
     // Brief green flash shown on the chip right after a copy, so the tap is
     // visible feedback (the clipboard write itself is silent).
     val copiedCodeSpanStyle =
-        base.copy(fontFamily = FontFamily.Monospace, background = IrisColors.statusGreen.copy(alpha = 0.30f))
+        base
+            .copy(fontFamily = FontFamily.Monospace, background = IrisColors.statusGreen.copy(alpha = 0.30f))
             .toSpanStyle()
     val clipboard = LocalClipboardManager.current
     val scope = rememberCoroutineScope()
@@ -92,9 +135,11 @@ fun MarkdownText(
     // Re-render it without the padding, and wrap it in a link so tapping the
     // inline code copies it to the clipboard (Telegram-style). The
     // LinkAnnotation carries the click listener; the URL is never opened.
-    val annotator = markdownAnnotator(
+    val annotator =
+        markdownAnnotator(
             annotate = { content, child ->
-            if (child.type == MarkdownElementTypes.CODE_SPAN) {
+                when {
+                    child.type == MarkdownElementTypes.CODE_SPAN -> {
                         val children = child.children
                         // Drop the surrounding backtick tokens (present as first/last child).
                         val inner = if (children.size >= 3) children.subList(1, children.size - 1) else children
@@ -106,13 +151,15 @@ fun MarkdownText(
                                 url = "iris:copy-code",
                                 // Keep every interaction state identical to the chip so
                                 // hover/press never restyles the inline code.
-                        styles = TextLinkStyles(
+                                styles =
+                                    TextLinkStyles(
                                         style = spanStyle,
                                         focusedStyle = spanStyle,
                                         hoveredStyle = spanStyle,
                                         pressedStyle = spanStyle,
                                     ),
-                        linkInteractionListener = LinkInteractionListener {
+                                linkInteractionListener =
+                                    LinkInteractionListener {
                                         clipboard.setText(AnnotatedString(code))
                                         copiedCode.value = code
                                         scope.launch {
@@ -126,23 +173,36 @@ fun MarkdownText(
                         }
                         pop()
                         true
-            } else {
+                    }
+
+                    // Streaming cursor: append ▉ to the last text leaf of the
+                    // document so the cursor sits at the end of the visible text.
+                    // The tail is re-annotated on every reveal tick, so the cursor
+                    // follows the text (and vanishes once the message is final).
+                    useStreaming &&
+                        child.type == MarkdownTokenTypes.TEXT &&
+                        content.length - child.endOffset <= 1 -> {
+                        append(child.getUnescapedTextInNode(content))
+                        append(" ▉")
+                        true
+                    }
+
+                    else -> {
                         false
                     }
+                }
             },
         )
-    Markdown(
-        markdownState = state,
-        modifier = modifier,
-        annotator = annotator,
-        colors = markdownColor(
+    val colors =
+        markdownColor(
             text = color,
             codeBackground = Color.Black.copy(alpha = 0.8f),
             inlineCodeBackground = inlineCodeBackground,
             dividerColor = IrisColors.divider,
             tableBackground = Color.White.copy(alpha = 0.03f),
-        ),
-        typography = markdownTypography(
+        )
+    val typography =
+        markdownTypography(
             h1 = base.copy(fontSize = fontSize * 1.3f, fontWeight = FontWeight.Bold),
             h2 = base.copy(fontSize = fontSize * 1.2f, fontWeight = FontWeight.Bold),
             h3 = base.copy(fontSize = fontSize * 1.1f, fontWeight = FontWeight.Bold),
@@ -157,15 +217,17 @@ fun MarkdownText(
             ordered = base,
             bullet = base,
             list = base,
-            textLink = TextLinkStyles(
+            textLink =
+                TextLinkStyles(
                     style = base.copy(textDecoration = TextDecoration.Underline).toSpanStyle(),
                 ),
             table = base.copy(fontSize = fontSize * 0.95f),
-        ),
-        components = markdownComponents(
+        )
+    val components =
+        markdownComponents(
             codeFence = { model ->
                 MarkdownCodeFence(model.content, model.node, model.typography.code) { code, language, style ->
-                    if (!isStreaming && isHtmlArtifact(language, code)) {
+                    if (!useStreaming && isHtmlArtifact(language, code)) {
                         HtmlArtifactCard(code = code, style = style, highlights = highlights)
                     } else {
                         CodeBlockWithCopy(code = code, language = language, style = style, highlights = highlights)
@@ -174,7 +236,7 @@ fun MarkdownText(
             },
             codeBlock = { model ->
                 MarkdownCodeBlock(model.content, model.node, model.typography.code) { code, language, style ->
-                    if (!isStreaming && isHtmlArtifact(language, code)) {
+                    if (!useStreaming && isHtmlArtifact(language, code)) {
                         HtmlArtifactCard(code = code, style = style, highlights = highlights)
                     } else {
                         CodeBlockWithCopy(code = code, language = language, style = style, highlights = highlights)
@@ -184,16 +246,128 @@ fun MarkdownText(
             // The core default checkbox renders literal "[x]"/"[ ]" text; use the
             // Material 3 checkbox instead.
             checkbox = {
-                com.mikepenz.markdown.m3.elements.MarkdownCheckBox(it.content, it.node, it.typography.text)
+                com.mikepenz.markdown.m3.elements
+                    .MarkdownCheckBox(it.content, it.node, it.typography.text)
             },
-        ),
+        )
+    if (useStreaming) {
+        if (pipeline.displayed.isEmpty()) {
+            // No text revealed yet (message.start, first tick pending): show
+            // just the cursor so the bubble is visible immediately.
+            Text("▉", modifier = modifier, color = color, fontSize = fontSize)
+        } else {
+            Markdown(
+                streamingMarkdownState = pipeline.state,
+                modifier = modifier,
+                annotator = annotator,
+                colors = colors,
+                typography = typography,
+                components = components,
+            )
+        }
+    } else {
+        // retainState: keep the last formatted output visible while the new
+        // text re-parses (async) — no raw-markdown flash between updates.
+        val state = rememberMarkdownState(displayText, retainState = true)
+        Markdown(
+            markdownState = state,
+            modifier = modifier,
+            annotator = annotator,
+            colors = colors,
+            typography = typography,
+            components = components,
             loading = { m ->
-            // While (re)parsing — e.g. on each streaming update — show the raw
-            // text so the bubble never goes blank between updates.
-            Text(text, modifier = m, color = color, fontSize = fontSize)
+                // First parse of a (long) message: show the text so the bubble
+                // never goes blank.
+                Text(displayText, modifier = m, color = color, fontSize = fontSize)
             },
         )
     }
+}
+
+/**
+ * Incremental streaming pipeline (docs/05 §5.1). [text] is the latest FULL
+ * snapshot from the gateway; it is revealed at a steady rate controlled by
+ * [smoothness] (typewriter effect), and the revealed prefix is fed into an
+ * append-only [StreamingMarkdownState]. Settled blocks are parsed once and
+ * keep their AST identity, so Compose never re-lays them out — only the
+ * unstable tail re-renders per tick.
+ *
+ * [active] is false for history messages (never streamed): the reveal is
+ * skipped and [StreamingPipeline.done] is true immediately. [streaming]
+ * indicates the message is still receiving updates; once the reveal catches
+ * up and the message is final, the reveal loop stops.
+ *
+ * Returns the parser state, the currently revealed text (read inside the
+ * composition so reveal ticks recompose the caller), and whether the reveal
+ * has caught up with the target.
+ */
+@Composable
+private fun rememberStreamingMarkdownPipeline(
+    text: String,
+    smoothness: Float,
+    active: Boolean,
+    streaming: Boolean,
+): StreamingPipeline {
+    // Prefix-preserving transform (see preserveNewlinesAsHardBreaksStreaming):
+    // a prefix of the revealed text always maps to a prefix of the target, so
+    // the diff between consecutive reveals is a pure append.
+    val target = remember(text) { text.prepareForMarkdown().preserveNewlinesAsHardBreaksStreaming() }
+    val displayed = remember { mutableStateOf("") }
+    val latestTarget = rememberUpdatedState(target)
+    val latestSmoothness = rememberUpdatedState(smoothness)
+    val latestStreaming = rememberUpdatedState(streaming)
+    // Bumped when the target is rewritten (not extended): the parser state is
+    // recreated via key() below and re-seeded with the full text.
+    val generation = remember { mutableIntStateOf(0) }
+    val state = key(generation.value) { rememberStreamingMarkdownState() }
+    LaunchedEffect(state, active) {
+        if (!active) {
+            // Never streamed (history message): reveal everything at once so
+            // the caller falls back to the static renderer immediately.
+            displayed.value = latestTarget.value
+            return@LaunchedEffect
+        }
+        var last = ""
+        while (true) {
+            delay(STREAM_REVEAL_TICK_MS)
+            val t = latestTarget.value
+            val cur = displayed.value
+            if (cur == t) {
+                // Reveal complete: keep ticking only while the message is
+                // still streaming (more text may arrive); otherwise stop so
+                // finished bubbles don't burn battery.
+                if (!latestStreaming.value) return@LaunchedEffect
+                continue
+            }
+            val step =
+                revealStep(
+                    remaining = t.length - cur.length,
+                    charsPerSecond = streamCharsPerSecond(latestSmoothness.value),
+                    tickSeconds = STREAM_REVEAL_TICK_MS / 1000.0,
+                )
+            val next = t.take(cur.length + step)
+            displayed.value = next
+            val chunk = appendChunk(last, next)
+            if (chunk == null) {
+                // Rewritten, not extended: recreate the parser state. The
+                // effect restarts (keyed on [state]) and re-seeds it.
+                generation.value++
+                return@LaunchedEffect
+            }
+            if (chunk.isNotEmpty()) state.append(chunk)
+            last = next
+        }
+    }
+    return StreamingPipeline(state, displayed.value, displayed.value == target)
+}
+
+/** Result of the streaming reveal pipeline. */
+private data class StreamingPipeline(
+    val state: StreamingMarkdownState,
+    val displayed: String,
+    val done: Boolean,
+)
 
 /**
  * Renders a highlighted code block with a copy button in the top-right corner
@@ -213,7 +387,8 @@ internal fun CodeBlockWithCopy(
         if (code.isNotBlank()) {
             IconButton(
                 onClick = { clipboard.setText(AnnotatedString(code)) },
-                modifier = Modifier
+                modifier =
+                    Modifier
                         .align(Alignment.TopEnd)
                         // MarkdownHighlightedCode insets its background by 8dp top;
                         // match that so the button sits inside the block, not above it.

app/shared/src/commonMain/kotlin/iris/ui/screens/ConnectScreen.kt

@@ -11,10 +11,12 @@ import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.Button
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
@@ -24,11 +26,16 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
+import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.input.KeyboardType
 import androidx.compose.ui.text.input.PasswordVisualTransformation
 import androidx.compose.ui.unit.dp
+import iris.net.TlsFingerprintRequired
+import iris.platform.QrScanButton
+import iris.platform.isDesktop
 import iris.state.IrisController
 import iris.ui.theme.IrisColors
+import iris.util.PairLink
 import kotlinx.coroutines.launch
 
 /**
@@ -41,18 +48,46 @@ fun ConnectScreen(
     prefillUrl: String = "",
     prefillToken: String = "",
     initialError: String? = null,
+    /** Gateway certificate fingerprint awaiting user confirmation (docs/09
+     *  §9.4) — shown as a confirm dialog on entry. */
+    tlsFingerprint: String? = null,
 ) {
     val scope = rememberCoroutineScope()
     // Default is a cleartext (non-TLS) URL because the typical gateway is on
-    // the LAN. A TLS gateway is reached by entering a secure (wss) URL instead.
-    // pi-lens-ignore: opengrep:javascript.lang.security.detect-insecure-websocket.detect-insecure-websocket
-    var url by remember { mutableStateOf(prefillUrl.ifBlank { "ws://" }) }
+    // the LAN. A TLS gateway is reached by entering a secure (https) URL instead.
+    var url by remember { mutableStateOf(prefillUrl.ifBlank { "http://" }) }
     var token by remember { mutableStateOf(prefillToken) }
     var busy by remember { mutableStateOf(false) }
     var error by remember { mutableStateOf(initialError) }
+    // Fingerprint the user still has to confirm (self-signed gateway cert,
+    // docs/09 §9.4): set on entry (TlsConfirmRequired state) or when a
+    // connect attempt fails with an untrusted certificate.
+    var pendingFingerprint by remember { mutableStateOf(tlsFingerprint) }
+
+    // "Test & Connect" (also the dialog's confirm action): real hello test,
+    // then save + (re)connect. An untrusted gateway certificate surfaces as
+    // the fingerprint confirm dialog instead of a plain error.
+    fun doConnect() {
+        if (busy) return
+        busy = true
+        error = null
+        scope.launch {
+            val result = controller.connect(url.trim(), token.trim())
+            busy = false
+            if (result.isFailure) {
+                val ex = result.exceptionOrNull()
+                if (ex is TlsFingerprintRequired) {
+                    pendingFingerprint = ex.fingerprint
+                } else {
+                    error = ex?.message ?: "connection failed"
+                }
+            }
+        }
+    }
 
     Column(
-        modifier = Modifier
+        modifier =
+            Modifier
                 .fillMaxSize()
                 .verticalScroll(rememberScrollState())
                 .padding(24.dp),
@@ -69,7 +104,8 @@ fun ConnectScreen(
         Spacer(modifier = Modifier.height(32.dp))
 
         Column(
-            modifier = Modifier
+            modifier =
+                Modifier
                     .fillMaxWidth()
                     .clip(RoundedCornerShape(16.dp))
                     .background(IrisColors.surface)
@@ -79,9 +115,8 @@ fun ConnectScreen(
                 value = url,
                 onValueChange = { url = it },
                 label = { Text("Server URL") },
-                // Example LAN URL; wss:// works too for TLS gateways.
-                // pi-lens-ignore: opengrep:javascript.lang.security.detect-insecure-websocket.detect-insecure-websocket
-                placeholder = { Text("ws://192.168.1.10:8790/ws") },
+                // Example LAN URL; https:// works too for TLS gateways.
+                placeholder = { Text("http://192.168.1.10:8791") },
                 singleLine = true,
                 keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Uri),
                 modifier = Modifier.fillMaxWidth(),
@@ -91,26 +126,29 @@ fun ConnectScreen(
                 value = token,
                 onValueChange = { token = it },
                 label = { Text("Pairing token") },
-                placeholder = { Text("ANDROID_TOKEN (64 hex)") },
+                placeholder = { Text("IRIS_TOKEN (64 hex)") },
                 singleLine = true,
                 visualTransformation = PasswordVisualTransformation(),
                 modifier = Modifier.fillMaxWidth(),
             )
+            if (!isDesktop) {
+                Spacer(modifier = Modifier.height(12.dp))
+                QrScanButton { raw ->
+                    if (raw != null) {
+                        val link = PairLink.parse(raw)
+                        if (link != null) {
+                            url = link.url
+                            token = link.token
+                        } else {
+                            error = "Couldn't read that QR code."
+                        }
+                    }
+                }
+            }
             Spacer(modifier = Modifier.height(24.dp))
 
             Button(
-                onClick = {
-                    if (busy) return@Button
-                    busy = true
-                    error = null
-                    scope.launch {
-                        val result = controller.connect(url.trim(), token.trim())
-                        busy = false
-                        if (result.isFailure) {
-                            error = result.exceptionOrNull()?.message ?: "connection failed"
-                        }
-                    }
-                },
+                onClick = { doConnect() },
                 enabled = !busy,
                 modifier = Modifier.fillMaxWidth(),
             ) {
@@ -129,11 +167,49 @@ fun ConnectScreen(
 
         Spacer(modifier = Modifier.height(24.dp))
         Text(
-            "Find the token in ~/.hermes/.env (ANDROID_TOKEN) or run\n" +
+            "Find the token in ~/.hermes/.env (IRIS_TOKEN) or run\n" +
                 "hermes gateway setup on the gateway host.",
             style = MaterialTheme.typography.bodySmall,
             color = MaterialTheme.colorScheme.onSurfaceVariant,
         )
     }
-}
 
+    // Fingerprint confirm (docs/09 §9.4): the gateway presents a certificate
+    // this device doesn't trust (self-signed). The user verifies the
+    // fingerprint on the gateway host, then confirms — the pin is stored in
+    // secure storage and the connect is retried, like an SSH host key.
+    if (pendingFingerprint != null) {
+        AlertDialog(
+            onDismissRequest = { pendingFingerprint = null },
+            title = { Text("Confirm gateway certificate") },
+            text = {
+                Column {
+                    Text(
+                        "The gateway presents a certificate this device doesn't trust. " +
+                            "Verify the fingerprint on the gateway host, then confirm to pin it.",
+                        style = MaterialTheme.typography.bodyMedium,
+                    )
+                    Spacer(modifier = Modifier.height(12.dp))
+                    Text(
+                        pendingFingerprint!!,
+                        style = MaterialTheme.typography.bodyMedium,
+                        fontFamily = FontFamily.Monospace,
+                    )
+                }
+            },
+            confirmButton = {
+                Button(
+                    onClick = {
+                        val fp = pendingFingerprint!!
+                        pendingFingerprint = null
+                        controller.confirmTlsFingerprint(fp)
+                        doConnect()
+                    },
+                ) { Text("Confirm & pin") }
+            },
+            dismissButton = {
+                TextButton(onClick = { pendingFingerprint = null }) { Text("Cancel") }
+            },
+        )
+    }
+}

app/shared/src/commonMain/kotlin/iris/ui/screens/SettingsScreen.kt

@@ -44,6 +44,8 @@ import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import iris.AppVersion
+import iris.net.ReleaseCheck
 import iris.platform.ImageFilePicker
 import iris.platform.decodeImageBytes
 import iris.platform.loadScaledImage
@@ -54,6 +56,8 @@ import iris.ui.theme.Backdrop
 import iris.ui.theme.BackgroundMode
 import iris.ui.theme.IrisColors
 import iris.ui.theme.LocalUserTheme
+import iris.util.STREAM_SMOOTHNESS_MAX
+import iris.util.STREAM_SMOOTHNESS_MIN
 import kotlin.math.roundToInt
 
 /**
@@ -71,13 +75,23 @@ fun SettingsScreen(
 ) {
     val threadsEnabled by controller.threadsEnabled.collectAsState()
     val streamingEnabled by controller.streamingEnabled.collectAsState()
+    val streamSmoothness by controller.streamSmoothness.collectAsState()
     val reasoningAutoCollapse by controller.reasoningAutoCollapse.collectAsState()
     val runtimeFooterEnabled by controller.runtimeFooterEnabled.collectAsState()
     val runtimeFooterFields by controller.runtimeFooterFields.collectAsState()
     val toolDetail by controller.toolDetail.collectAsState()
     val fontSizeScale by controller.fontSizeScale.collectAsState()
+    val gatewayVersion by controller.gatewayVersion.collectAsState()
     val theme = LocalUserTheme.current
     var pickerTarget by remember { mutableStateOf<PickerTarget?>(null) }
+    var showForgetConfirm by remember { mutableStateOf(false) }
+
+    // Best-effort latest-release check (docs/04): one query per screen open,
+    // failures stay silent (ReleaseCheck returns null).
+    var latestVersion by remember { mutableStateOf<String?>(null) }
+    LaunchedEffect(Unit) {
+        latestVersion = ReleaseCheck.latestVersion()
+    }
 
     Box(modifier = Modifier.fillMaxSize().background(theme.background)) {
         Column(
@@ -141,6 +155,27 @@ fun SettingsScreen(
                         onCheckedChange = { controller.toggleStreaming() },
                     )
                 }
+                if (streamingEnabled) {
+                    Spacer(modifier = Modifier.height(8.dp))
+                    Text("Streaming speed", fontSize = 12.sp, color = IrisColors.textDim)
+                    Text(
+                        "How fast new text appears while streaming — lower is faster",
+                        fontSize = 11.sp,
+                        color = IrisColors.textDim,
+                    )
+                    Spacer(modifier = Modifier.height(4.dp))
+                    Row(verticalAlignment = Alignment.CenterVertically) {
+                        Text("Fast", fontSize = 12.sp, color = IrisColors.textDim)
+                        Slider(
+                            value = streamSmoothness,
+                            onValueChange = { controller.setStreamSmoothness(it) },
+                            valueRange = STREAM_SMOOTHNESS_MIN..STREAM_SMOOTHNESS_MAX,
+                            steps = 5, // 0.2 / 0.3 / 0.4 / 0.5 / 0.6 / 0.7 / 0.8
+                            modifier = Modifier.weight(1f),
+                        )
+                        Text("Slow", fontSize = 12.sp, color = IrisColors.textDim)
+                    }
+                }
             }
             SettingsCard {
                 Row(
@@ -391,6 +426,37 @@ fun SettingsScreen(
                     }
                 }
             }
+
+            Text(
+                "Connection",
+                style = MaterialTheme.typography.titleSmall,
+                modifier = Modifier.padding(top = 12.dp, bottom = 4.dp),
+            )
+            SettingsCard {
+                Text("🔌 Forget pairing", fontSize = 14.sp)
+                Text(
+                    "Clears the gateway token and wipes local chat history",
+                    fontSize = 12.sp,
+                    color = IrisColors.textDim,
+                )
+                Spacer(modifier = Modifier.height(8.dp))
+                TextButton(onClick = { showForgetConfirm = true }) {
+                    Text("Forget pairing", fontSize = 12.sp)
+                }
+            }
+
+            Text(
+                "About",
+                style = MaterialTheme.typography.titleSmall,
+                modifier = Modifier.padding(top = 12.dp, bottom = 4.dp),
+            )
+            SettingsCard {
+                VersionCard(
+                    appVersion = AppVersion.VERSION,
+                    gatewayVersion = gatewayVersion,
+                    latestVersion = latestVersion,
+                )
+            }
         }
 
         when (pickerTarget) {
@@ -437,6 +503,32 @@ fun SettingsScreen(
                 Unit
             }
         }
+
+        if (showForgetConfirm) {
+            AlertDialog(
+                onDismissRequest = { showForgetConfirm = false },
+                title = { Text("Forget pairing?") },
+                text = {
+                    Text(
+                        "This clears the gateway token and wipes all local chat history on this device. You'll need to pair again to reconnect.",
+                        fontSize = 13.sp,
+                    )
+                },
+                confirmButton = {
+                    TextButton(onClick = {
+                        showForgetConfirm = false
+                        controller.forget()
+                    }) {
+                        Text("Forget")
+                    }
+                },
+                dismissButton = {
+                    TextButton(onClick = { showForgetConfirm = false }) {
+                        Text("Cancel")
+                    }
+                },
+            )
+        }
     }
 }
 
@@ -465,6 +557,47 @@ private fun BackArrow(
     }
 }
 
+/**
+ * About card (docs/04 hello.ack note): app version (repo-root VERSION baked in
+ * at build time), the connected gateway's version (hello.ack
+ * `server_caps.app_version`), a mismatch hint, and the latest Gitea release
+ * when the running build is older.
+ */
+@Composable
+private fun VersionCard(
+    appVersion: String,
+    gatewayVersion: String,
+    latestVersion: String?,
+) {
+    Text("📦 Version", fontSize = 14.sp)
+    Text(
+        "Iris app v$appVersion",
+        fontSize = 12.sp,
+        color = IrisColors.textSecondary,
+    )
+    if (gatewayVersion.isNotBlank()) {
+        Text(
+            "Gateway v$gatewayVersion",
+            fontSize = 12.sp,
+            color = IrisColors.textSecondary,
+        )
+        if (gatewayVersion != appVersion) {
+            Text(
+                "App and gateway versions differ — update the other side to match.",
+                fontSize = 12.sp,
+                color = IrisColors.statusAmber,
+            )
+        }
+    }
+    latestVersion?.takeIf { ReleaseCheck.isNewer(it, appVersion) }?.let { latest ->
+        Text(
+            "New version v$latest available — see the Gitea releases page.",
+            fontSize = 12.sp,
+            color = IrisColors.statusAmber,
+        )
+    }
+}
+
 /** Settings row container (panel card). */
 @Composable
 private fun SettingsCard(content: @Composable () -> Unit) {

app/shared/src/commonMain/kotlin/iris/ui/theme/Backdrop.kt

@@ -1,8 +1,9 @@
 package iris.ui.theme
 
 /**
- * A bundled backdrop image shipped in the app (Android `assets/backdrops/`,
- * desktop classpath `backdrops/`), loaded via [iris.platform.readBackdropBytes].
+ * A bundled backdrop image shipped in the app (Android: `androidApp` module
+ * `assets/backdrops/`; desktop: classpath `backdrops/`), loaded via
+ * [iris.platform.readBackdropBytes].
  *
  * Bundled backdrops are referenced in [UserTheme.backgroundImagePath] by the
  * sentinel path `backdrop://<id>` (see [path]); user-picked images use a real
@@ -18,9 +19,12 @@ data class Backdrop(
     companion object {
         const val PATH_PREFIX = "backdrop://"
 
+        /** Default background for new chats / fresh installs. */
+        val DEFAULT = Backdrop("pexels-yunszyveli-12368637", "Yun Syzveli")
+
         val ALL: List<Backdrop> =
             listOf(
-                Backdrop("pexels-yunszyveli-12368637", "Yun Syzveli"),
+                DEFAULT,
                 Backdrop("pexels-bogdankrupin-12049700", "Bogdan Krupin"),
                 Backdrop("pexels-bosichong-27940302", "Bosi Chong"),
                 Backdrop("pexels-farhan-najeer-644774196-32490483", "Farhan Najeer"),
@@ -28,9 +32,6 @@ data class Backdrop(
                 Backdrop("pexels-steve-29390703", "Steve"),
             )
 
-        /** Default background for new chats / fresh installs. */
-        val DEFAULT: Backdrop = ALL.first { it.id == "pexels-yunszyveli-12368637" }
-
         /** True when [path] references a bundled backdrop. */
         fun isBackdropPath(path: String?): Boolean = !path.isNullOrBlank() && path.startsWith(PATH_PREFIX)
 

app/shared/src/commonMain/kotlin/iris/ui/theme/Theme.kt

@@ -35,8 +35,6 @@ object IrisColors {
     val textDim = Color(0xFF8A93A6)
 
     // Bubbles
-    val bubbleUser = primary
-    val bubbleAssistant = Color(0xFF2A2E3B)
     val bubbleCommentary = Color(0xFF23262F)
 
     // Panels, chips, rows
@@ -47,7 +45,6 @@ object IrisColors {
     val divider = Color(0xFF2A2E3B)
 
     // Status
-    val statusGrey = Color(0xFF9E9E9E)
     val statusAmber = Color(0xFFFFC107)
     val statusGreen = Color(0xFF4CAF50)
     val statusRed = Color(0xFFF44336)

app/shared/src/commonMain/kotlin/iris/util/Markdown.kt

@@ -25,16 +25,107 @@ fun String.prepareForMarkdown(): String {
 fun String.preserveNewlinesAsHardBreaks(): String {
     val lines = split("\n")
     var inCodeBlock = false
-    val out = lines.map { line ->
+    val out =
+        lines.map { line ->
             val trimmed = line.trimStart()
             when {
                 trimmed.startsWith("```") || trimmed.startsWith("~~~") -> {
                     inCodeBlock = !inCodeBlock
                     line
                 }
-            inCodeBlock || line.isBlank() -> line
-            else -> line + "  "
+
+                inCodeBlock || line.isBlank() -> {
+                    line
+                }
+
+                else -> {
+                    line + "  "
+                }
             }
         }
     return out.joinToString("\n")
 }
+
+/**
+ * Streaming variant of [preserveNewlinesAsHardBreaks]: identical, except the
+ * trailing hard-break spaces are NOT added to the last (still-incomplete) line.
+ *
+ * This makes the transform *prefix-preserving*: for every prefix `p` of `s`,
+ * `p.preserveNewlinesAsHardBreaksStreaming()` is a prefix of
+ * `s.preserveNewlinesAsHardBreaksStreaming()`. That is what lets the streaming
+ * renderer feed the diff between consecutive snapshots into an append-only
+ * markdown parser (see `MarkdownText`). The final line's trailing spaces are
+ * invisible at the end of the document, so a finished message renders exactly
+ * like the static transform.
+ */
+fun String.preserveNewlinesAsHardBreaksStreaming(): String {
+    val lines = split("\n")
+    var inCodeBlock = false
+    val out =
+        lines.mapIndexed { index, line ->
+            val trimmed = line.trimStart()
+            when {
+                trimmed.startsWith("```") || trimmed.startsWith("~~~") -> {
+                    inCodeBlock = !inCodeBlock
+                    line
+                }
+
+                inCodeBlock || line.isBlank() -> {
+                    line
+                }
+
+                index == lines.lastIndex -> {
+                    line
+                }
+
+                // still being typed
+                else -> {
+                    line + "  "
+                }
+            }
+        }
+    return out.joinToString("\n")
+}
+
+/**
+ * Returns the suffix [next] adds on top of [last] (i.e. [next] minus its
+ * [last] prefix), or `null` when [next] is NOT an extension of [last] — the
+ * content was rewritten, not appended. The gateway sends full text snapshots
+ * on every `message.update`; this converts them into append chunks for the
+ * append-only streaming parser.
+ */
+fun appendChunk(
+    last: String,
+    next: String,
+): String? = if (next.startsWith(last)) next.substring(last.length) else null
+
+/**
+ * Number of characters to reveal on one streaming tick. The reveal rate comes
+ * from the smoothness setting; when the backlog exceeds ~2 s of reveal time
+ * (fast model, reconnect catch-up) everything is revealed at once so the
+ * display never lags far behind the received text.
+ */
+fun revealStep(
+    remaining: Int,
+    charsPerSecond: Double,
+    tickSeconds: Double,
+): Int {
+    if (remaining <= 0) return 0
+    if (remaining > charsPerSecond * 2.0) return remaining
+    return maxOf(1, (charsPerSecond * tickSeconds).toInt())
+}
+
+/**
+ * Range of the streaming-smoothness setting (seconds between visible text
+ * updates while streaming; lower = faster/smoother).
+ */
+const val STREAM_SMOOTHNESS_MIN = 0.2f
+const val STREAM_SMOOTHNESS_MAX = 0.8f
+const val STREAM_SMOOTHNESS_DEFAULT = 0.4f
+
+/**
+ * Reveal rate for a smoothness value. `60 / smoothness` keeps the display
+ * well ahead of the gateway's arrival rate (~24 chars per 0.8 s) across the
+ * whole range (0.2 → 300 chars/s, 0.8 → 75 chars/s).
+ */
+fun streamCharsPerSecond(smoothness: Float): Double = 60.0 / smoothness.coerceIn(STREAM_SMOOTHNESS_MIN, STREAM_SMOOTHNESS_MAX)

app/shared/src/commonMain/kotlin/iris/util/PairLink.kt

@@ -0,0 +1,97 @@
+package iris.util
+
+/**
+ * A parsed `iris://pair` deep link: the gateway URL to connect to plus the
+ * one-time pairing token. Produced by [PairLink.parse] from a scanned QR or a
+ * tapped `iris://pair` link (docs/20).
+ */
+data class PairLink(
+    val url: String,
+    val token: String,
+) {
+    companion object {
+        /** Default gateway HTTP port (docs/19). */
+        const val DEFAULT_PORT = 8791
+
+        /**
+         * Parse a pairing link into a [PairLink], or return null on any
+         * malformation.
+         *
+         * - scheme must be `iris` (case-insensitive); the URI host must be `pair`.
+         * - required query params: `host` (non-empty) and `token` (non-empty).
+         * - `port` defaults to [DEFAULT_PORT]; must be 1–65535 when present.
+         * - `secure` defaults to `0`; `1` selects https.
+         * - `host`/`token` are percent-decoded (the Python side `quote()`s them).
+         */
+        fun parse(raw: String): PairLink? {
+            val qIdx = raw.indexOf('?')
+            val authority = if (qIdx >= 0) raw.substring(0, qIdx) else raw
+            val query = if (qIdx >= 0) raw.substring(qIdx + 1) else ""
+
+            // authority is "iris://pair": scheme, then "://", then the URI host.
+            val sep = authority.indexOf("://")
+            if (sep <= 0) return null
+            val scheme = authority.substring(0, sep)
+            val uriHost = authority.substring(sep + 3)
+            if (scheme.lowercase() != "iris") return null
+            if (uriHost.lowercase() != "pair") return null
+
+            val params = parseQuery(query)
+            val host = params["host"]?.let { percentDecode(it) }?.trim().orEmpty()
+            val token = params["token"]?.let { percentDecode(it) }?.trim().orEmpty()
+            if (host.isEmpty() || token.isEmpty()) return null
+
+            val portRaw = params["port"]
+            val port =
+                if (portRaw.isNullOrEmpty()) {
+                    DEFAULT_PORT
+                } else {
+                    portRaw.toIntOrNull() ?: return null
+                }
+            if (port !in 1..65535) return null
+            val secure = params["secure"]?.toIntOrNull() ?: 0
+            val urlScheme = if (secure == 1) "https" else "http"
+            return PairLink("$urlScheme://$host:$port", token)
+        }
+
+        /** Split a `k=v&k=v` query string into a map (values may be empty). */
+        private fun parseQuery(query: String): Map<String, String> {
+            if (query.isEmpty()) return emptyMap()
+            val map = LinkedHashMap<String, String>()
+            for (pair in query.split('&')) {
+                if (pair.isEmpty()) continue
+                val eq = pair.indexOf('=')
+                if (eq < 0) {
+                    map[pair] = ""
+                } else {
+                    map[pair.substring(0, eq)] = pair.substring(eq + 1)
+                }
+            }
+            return map
+        }
+
+        /**
+         * Percent-decode `%XX` sequences (byte-wise; pairing payloads are ASCII
+         * — IPs and 64-hex tokens). A `%` that does not start a valid
+         * two-hex-digit escape is kept literally.
+         */
+        private fun percentDecode(s: String): String {
+            val sb = StringBuilder(s.length)
+            var i = 0
+            while (i < s.length) {
+                val c = s[i]
+                if (c == '%' && i + 2 < s.length) {
+                    val code = s.substring(i + 1, i + 3).toIntOrNull(16)
+                    if (code != null) {
+                        sb.append(code.toChar())
+                        i += 3
+                        continue
+                    }
+                }
+                sb.append(c)
+                i++
+            }
+            return sb.toString()
+        }
+    }
+}

app/shared/src/commonMain/kotlin/iris/util/TimeFormat.kt

@@ -11,9 +11,3 @@ expect fun localDayKey(epochMillis: Long): String
 
 /** Current wall-clock time in epoch milliseconds (for locally generated items). */
 expect fun nowMillis(): Long
-
-/** Host part of a pairing URL (the "host:port" of the full gateway ws URL). */
-fun hostFromUrl(url: String): String {
-    val noScheme = url.trim().substringAfter("://")
-    return noScheme.substringBefore("/").ifBlank { url.trim() }
-}

app/shared/src/commonMain/sqldelight/iris/db/Cache.sq

@@ -5,12 +5,20 @@
 
 CREATE TABLE message (
     lane TEXT NOT NULL, -- lane key: chatId or chatId::threadId
-    id TEXT NOT NULL, -- message id (server id, or local_/sys_ for optimistic)
+    id TEXT NOT NULL, -- message id (server id, or local<rand>/sys<rand> for optimistic)
     ts INTEGER NOT NULL, -- epoch millis (0 for optimistic, not yet echoed)
     payload TEXT NOT NULL, -- serialized MessageItem
     PRIMARY KEY (lane, id)
 );
 
+CREATE TABLE tool (
+    lane TEXT NOT NULL, -- lane key: chatId or chatId::threadId
+    id TEXT NOT NULL, -- local tool card id (tool<rand>)
+    seq INTEGER NOT NULL, -- card order within the lane (lane position)
+    payload TEXT NOT NULL, -- serialized ToolItem (carries its anchor_id)
+    PRIMARY KEY (lane, id)
+);
+
 CREATE TABLE channel (
     chat_id TEXT NOT NULL PRIMARY KEY,
     payload TEXT NOT NULL -- serialized ChannelInfo
@@ -33,6 +41,18 @@ VALUES (?, ?, ?, ?);
 clearMessages:
 DELETE FROM message;
 
+allTools:
+SELECT lane, seq, payload
+FROM tool
+ORDER BY lane, seq;
+
+upsertTool:
+INSERT OR REPLACE INTO tool (lane, id, seq, payload)
+VALUES (?, ?, ?, ?);
+
+clearTools:
+DELETE FROM tool;
+
 allChannels:
 SELECT chat_id, payload
 FROM channel;

app/shared/src/commonMain/sqldelight/migrations/1.sqm

@@ -0,0 +1,9 @@
+-- v1 -> v2: persist tool cards (M-cache: tool cards survive a restart,
+-- anchored to the message they follow — see ChatDb.loadLanes).
+CREATE TABLE tool (
+    lane TEXT NOT NULL,
+    id TEXT NOT NULL,
+    seq INTEGER NOT NULL,
+    payload TEXT NOT NULL,
+    PRIMARY KEY (lane, id)
+);

app/shared/src/commonTest/kotlin/iris/data/ChatStoreCacheTest.kt

@@ -1,7 +1,15 @@
 package iris.data
 
+import iris.protocol.Frame
+import iris.protocol.IrisJson
+import iris.protocol.TYPE_TODO_UPDATE
+import iris.protocol.TYPE_TOOL_START
+import iris.protocol.TodoItem
+import iris.protocol.TodoUpdatePayload
+import iris.protocol.ToolStartPayload
 import kotlin.test.Test
 import kotlin.test.assertEquals
+import kotlin.test.assertNull
 
 class ChatStoreCacheTest {
     @Test
@@ -9,21 +17,139 @@ class ChatStoreCacheTest {
         val store = ChatStore()
         store.loadFromCache(
             mapOf(
-                "android:default" to
-                    listOf(
+                "default" to
+                    listOf<ChatItem>(
                         MessageItem(id = "m1", role = "user", text = "hi", ts = 1),
+                        ToolItem(id = "tool_1", index = 0, name = "bash", done = true, anchorId = "m1"),
                         MessageItem(id = "m2", role = "assistant", text = "hello", ts = 2),
                     ),
             ),
         )
-        assertEquals(listOf("m1", "m2"), store.lanes.value["android:default"]!!.map { it.id })
+        assertEquals(listOf("m1", "tool_1", "m2"), store.lanes.value["default"]!!.map { it.id })
     }
 
     @Test
     fun loadFromCacheEmptyIsNoOp() {
         val store = ChatStore()
-        store.addPending("hello", "android:default")
+        store.addPending("hello", "default")
         store.loadFromCache(emptyMap())
-        assertEquals(1, store.lanes.value["android:default"]!!.size)
+        assertEquals(1, store.lanes.value["default"]!!.size)
     }
+
+    @Test
+    fun loadHistoryKeepsToolCardsAtAnchor() {
+        val store = ChatStore()
+        // Lane as restored from the cache: user message, tool card anchored
+        // to it, and the final answer.
+        store.loadFromCache(
+            mapOf(
+                "default" to
+                    listOf<ChatItem>(
+                        MessageItem(id = "m1", role = "user", text = "count", ts = 100),
+                        ToolItem(id = "tool_1", index = 0, name = "terminal", done = true, anchorId = "m1"),
+                        MessageItem(id = "m2", role = "assistant", text = "16", ts = 200),
+                    ),
+            ),
+        )
+        // A history refresh (authoritative messages, no tool cards) must keep
+        // the tool card between the user message and the answer — not push
+        // it to the end.
+        store.loadHistory(
+            "default",
+            listOf(
+                MessageItem(id = "m1", role = "user", text = "count", ts = 100),
+                MessageItem(id = "m2", role = "assistant", text = "16", ts = 200),
+            ),
+        )
+        assertEquals(listOf("m1", "tool_1", "m2"), store.lanes.value["default"]!!.map { it.id })
+    }
+
+    @Test
+    fun loadHistoryDedupesAndKeepsUnanchoredToolsLast() {
+        val store = ChatStore()
+        store.loadFromCache(
+            mapOf(
+                "default" to
+                    listOf<ChatItem>(
+                        MessageItem(id = "m1", role = "user", text = "count", ts = 100),
+                        ToolItem(id = "tool_1", index = 0, name = "bash", done = true),
+                    ),
+            ),
+        )
+        store.loadHistory(
+            "default",
+            listOf(MessageItem(id = "m1", role = "user", text = "count", ts = 100)),
+        )
+        // A card whose anchor is unknown falls to the end (degenerate case).
+        assertEquals(listOf("m1", "tool_1"), store.lanes.value["default"]!!.map { it.id })
+    }
+
+    @Test
+    fun toolStartIdsNeverCollideWithRestoredCards() {
+        val store = ChatStore()
+        // Lane restored from the cache after a restart, holding a persisted
+        // card minted by the PREVIOUS process.
+        store.loadFromCache(
+            mapOf(
+                "default" to
+                    listOf<ChatItem>(
+                        MessageItem(id = "m1", role = "user", text = "hi", ts = 1),
+                        ToolItem(id = "tool_1", index = 0, name = "bash", done = true, anchorId = "m1"),
+                    ),
+            ),
+        )
+        // A new turn must not re-mint an id the restored lane already holds
+        // (duplicate LazyColumn key / upsert overwrite under the same PK).
+        store.onFrame(
+            Frame(
+                type = TYPE_TOOL_START,
+                chatId = "iris:other",
+                payload =
+                    IrisJson.instance.encodeToJsonElement(
+                        ToolStartPayload.serializer(),
+                        ToolStartPayload(index = 0, name = "terminal", preview = "ls"),
+                    ),
+            ),
+        )
+        val ids = store.lanes.value["default"]!!.map { it.id }
+        assertEquals(ids.size, ids.toSet().size)
+    }
+
+    @Test
+    fun todoUpdateSetsLaneListLastWriteWins() {
+        val store = ChatStore()
+        assertNull(store.todos.value["default"])
+        store.onFrame(todoFrame("default", listOf(TodoItem("1", "a", "in_progress"))))
+        assertEquals(listOf("1"), store.todos.value["default"]!!.map { it.id })
+        // A second update REPLACES the list (the gateway always sends the
+        // full list), and other lanes are untouched.
+        store.onFrame(
+            todoFrame(
+                "default",
+                listOf(TodoItem("1", "a", "completed"), TodoItem("2", "b", "pending")),
+            ),
+        )
+        store.onFrame(todoFrame("chan_7", listOf(TodoItem("9", "z", "pending"))))
+        assertEquals(listOf("1", "2"), store.todos.value["default"]!!.map { it.id })
+        assertEquals("completed", store.todos.value["default"]!![0].status)
+        assertEquals(listOf("9"), store.todos.value["chan_7"]!!.map { it.id })
+        // An empty list clears the lane (the agent dropped its plan).
+        store.onFrame(todoFrame("default", emptyList()))
+        assertNull(store.todos.value["default"])
+        assertEquals(listOf("9"), store.todos.value["chan_7"]!!.map { it.id })
+    }
+
+    private fun todoFrame(
+        chatId: String,
+        todos: List<TodoItem>,
+    ): Frame =
+        Frame(
+            type = TYPE_TODO_UPDATE,
+            chatId = chatId,
+            payload =
+                IrisJson.instance.encodeToJsonElement(
+                    TodoUpdatePayload.serializer(),
+                    TodoUpdatePayload(todos = todos),
+                ),
+        )
 }

app/shared/src/commonTest/kotlin/iris/data/ChatStorePickerTest.kt

@@ -0,0 +1,108 @@
+package iris.data
+
+import iris.protocol.Frame
+import iris.protocol.IrisJson
+import iris.protocol.PickerChoice
+import iris.protocol.PickerChoicePayload
+import iris.protocol.TYPE_PICKER_CHOICE
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertIs
+import kotlin.test.assertNull
+import kotlin.test.assertTrue
+
+class ChatStorePickerTest {
+    private fun pickerFrame(
+        pickerId: String,
+        title: String = "Reasoning",
+        chatId: String = "chan_1",
+    ): Frame =
+        Frame(
+            type = TYPE_PICKER_CHOICE,
+            chatId = chatId,
+            payload =
+                IrisJson.instance.encodeToJsonElement(
+                    PickerChoicePayload.serializer(),
+                    PickerChoicePayload(
+                        pickerId = pickerId,
+                        title = title,
+                        choices =
+                            listOf(
+                                PickerChoice(value = "low", label = "Low"),
+                                PickerChoice(value = "high", label = "High", isCurrent = true),
+                            ),
+                    ),
+                ),
+        )
+
+    @Test
+    fun onPickerChoiceAddsItem() {
+        val store = ChatStore()
+        store.onFrame(pickerFrame("pk_1"))
+        val items = store.lanes.value["chan_1"]!!
+        assertEquals(1, items.size)
+        val picker = assertIs<PickerItem>(items[0])
+        assertEquals("pk_1", picker.id)
+        assertEquals("Reasoning", picker.title)
+        assertEquals(2, picker.choices.size)
+        assertNull(picker.selected)
+    }
+
+    @Test
+    fun onPickerChoiceIsIdempotent() {
+        val store = ChatStore()
+        store.onFrame(pickerFrame("pk_1"))
+        store.onFrame(pickerFrame("pk_1")) // duplicate (e.g. outbox re-delivery)
+        val items = store.lanes.value["chan_1"]!!
+        assertEquals(1, items.size)
+        assertEquals("pk_1", items[0].id)
+    }
+
+    @Test
+    fun resolvePickerMarksSelected() {
+        val store = ChatStore()
+        store.onFrame(pickerFrame("pk_1"))
+        store.resolvePicker("pk_1", "low")
+        val picker = assertIs<PickerItem>(store.lanes.value["chan_1"]!![0])
+        assertEquals("low", picker.selected)
+    }
+
+    @Test
+    fun resolvePickerIsOneShot() {
+        val store = ChatStore()
+        store.onFrame(pickerFrame("pk_1"))
+        store.resolvePicker("pk_1", "low")
+        store.resolvePicker("pk_1", "high") // second tap is ignored
+        val picker = assertIs<PickerItem>(store.lanes.value["chan_1"]!![0])
+        assertEquals("low", picker.selected)
+    }
+
+    @Test
+    fun resolvePickerUnknownIdIsNoop() {
+        val store = ChatStore()
+        store.onFrame(pickerFrame("pk_1"))
+        store.resolvePicker("pk_missing", "low") // stale select after restart
+        val picker = assertIs<PickerItem>(store.lanes.value["chan_1"]!![0])
+        assertNull(picker.selected)
+    }
+
+    @Test
+    fun pickerItemSerializationRoundTrip() {
+        val item =
+            PickerItem(
+                id = "pk_1",
+                title = "Reasoning",
+                choices =
+                    listOf(
+                        PickerChoice(value = "low", label = "Low"),
+                        PickerChoice(value = "high", label = "High", isCurrent = true),
+                    ),
+                ts = 1234L,
+                selected = "high",
+            )
+        val json = IrisJson.instance.encodeToString(PickerItem.serializer(), item)
+        val back = IrisJson.instance.decodeFromString(PickerItem.serializer(), json)
+        assertEquals(item, back)
+        assertTrue(back.choices[1].isCurrent)
+    }
+}

app/shared/src/commonTest/kotlin/iris/data/ChatStoreUnreadTest.kt

@@ -0,0 +1,70 @@
+package iris.data
+
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertNull
+
+/**
+ * M8: per-lane unread tracking (the data behind the channel-view / header
+ * unread indicator). The increment/clear *policy* (which incoming message is
+ * "being read") lives in IrisController; here we cover the store's count
+ * semantics that the UI and controller build on.
+ */
+class ChatStoreUnreadTest {
+    @Test
+    fun markUnreadIncrementsPerLane() {
+        val store = ChatStore()
+        assertEquals(0, store.unreadFor("default"))
+        store.markUnread("default")
+        store.markUnread("default")
+        store.markUnread("chan_7")
+        assertEquals(2, store.unreadFor("default"))
+        assertEquals(1, store.unreadFor("chan_7"))
+        // A lane that never had a message stays at 0.
+        assertEquals(0, store.unreadFor("chan_9"))
+    }
+
+    @Test
+    fun markLaneReadClearsOnlyThatLane() {
+        val store = ChatStore()
+        store.markUnread("default")
+        store.markUnread("chan_7")
+        store.markLaneRead("default")
+        assertEquals(0, store.unreadFor("default"))
+        // Other lanes are untouched.
+        assertEquals(1, store.unreadFor("chan_7"))
+    }
+
+    @Test
+    fun markLaneReadIsIdempotent() {
+        val store = ChatStore()
+        store.markLaneRead("default") // no unread -> no-op
+        assertEquals(0, store.unreadFor("default"))
+        store.markUnread("default")
+        store.markLaneRead("default")
+        store.markLaneRead("default") // clearing twice is safe
+        assertEquals(0, store.unreadFor("default"))
+    }
+
+    @Test
+    fun unreadMapReflectsCounts() {
+        val store = ChatStore()
+        assertNull(store.unread.value["default"])
+        store.markUnread("default")
+        assertEquals(1, store.unread.value["default"])
+        store.markLaneRead("default")
+        // A cleared lane is removed from the map (absent == 0 unread).
+        assertNull(store.unread.value["default"])
+    }
+
+    @Test
+    fun clearWipesUnread() {
+        val store = ChatStore()
+        store.markUnread("default")
+        store.markUnread("chan_7")
+        store.clear()
+        assertEquals(0, store.unreadFor("default"))
+        assertEquals(0, store.unreadFor("chan_7"))
+        assertEquals(emptyMap(), store.unread.value)
+    }
+}

app/shared/src/commonTest/kotlin/iris/net/HttpGatewayTest.kt

@@ -0,0 +1,203 @@
+package iris.net
+
+import iris.protocol.Frame
+import iris.protocol.IrisJson
+import iris.protocol.MessagePayload
+import iris.protocol.TYPE_MESSAGE
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+/**
+ * docs/19: unit tests for the HTTP fallback leg client.
+ *
+ * The SSE line parser is the trickiest pure logic (event/id/data fields,
+ * comments, multi-line data, Last-Event-ID bookkeeping), so it is factored
+ * into [SseParser] and tested directly. The WS->HTTP URL derivation is a
+ * pure function (unit-tested). Full transport behavior (health, POST, SSE
+ * catch-up, long-poll, delivery counting) is covered by the gateway-side
+ * Python tests (hermes-agent/tests/gateway/test_android_http.py).
+ */
+class HttpGatewayTest {
+    // ── URL derivation ────────────────────────────────────────────────────
+
+    @Test
+    fun deriveHttpUrlReplacesSchemeAndPort() {
+        assertEquals("http://192.168.1.10:8791", HttpGateway.deriveHttpUrl("ws://192.168.1.10:8790/ws"))
+        assertEquals("http://127.0.0.1:8791", HttpGateway.deriveHttpUrl("ws://127.0.0.1:8790/ws"))
+        assertEquals("https://gw.example.com:8791", HttpGateway.deriveHttpUrl("wss://gw.example.com:8790/ws"))
+        // No explicit port on the WS URL: still the HTTP leg's default port.
+        assertEquals("http://gw.example.com:8791", HttpGateway.deriveHttpUrl("ws://gw.example.com/ws"))
+    }
+
+    @Test
+    fun deriveHttpUrlPassesThroughHttpUrls() {
+        assertEquals("http://1.2.3.4:9000", HttpGateway.deriveHttpUrl("http://1.2.3.4:9000"))
+        assertEquals("https://a.b", HttpGateway.deriveHttpUrl("https://a.b"))
+    }
+
+    // ── SSE parser ────────────────────────────────────────────────────────
+
+    @Test
+    fun sseParsesHelloAndFrames() {
+        val parser = SseParser()
+        val hello = """{"v":1,"type":"hello.ack","payload":{"sync_cursor":5}}"""
+        val frame = """{"v":1,"type":"$TYPE_MESSAGE","payload":{"text":"hi"}}"""
+        val lines =
+            listOf(
+                "event: hello",
+                "data: $hello",
+                "",
+                "id: 7",
+                "event: frame",
+                "data: $frame",
+                "",
+            )
+        var helloCount = 0
+        var frameCount = 0
+        var lastCursor: Long? = null
+        for (line in lines) {
+            parser.feed(
+                line,
+                onHello = { helloCount++ },
+                onFrame = { frameCount++ },
+                onCursor = { lastCursor = it },
+            )
+        }
+        assertEquals(1, helloCount)
+        assertEquals(1, frameCount)
+        assertEquals(7L, lastCursor)
+    }
+
+    @Test
+    fun sseIgnoresHeartbeatComments() {
+        val parser = SseParser()
+        var frames = 0
+        parser.feed(": hb", onHello = {}, onFrame = { frames++ }, onCursor = {})
+        parser.feed("", onHello = {}, onFrame = { frames++ }, onCursor = {})
+        assertEquals(0, frames)
+    }
+
+    @Test
+    fun sseMultiLineDataJoinsWithNewline() {
+        val parser = SseParser()
+        var frame: Frame? = null
+        // SSE data may span multiple `data:` lines; the parser must join
+        // them with "\n" so the reassembled JSON still decodes. Split at a
+        // legal JSON whitespace point (right after a comma, between tokens).
+        val full =
+            """{"v":1,"type":"$TYPE_MESSAGE","payload":{"message_id":"m1","role":"assistant","text":"a\nb"}}"""
+        val cut = full.indexOf("\"m1\",") + "\"m1\",".length
+        val l1 = full.substring(0, cut)
+        val l2 = full.substring(cut)
+        parser.feed("event: frame", onHello = {}, onFrame = {}, onCursor = {})
+        parser.feed("data: $l1", onHello = {}, onFrame = {}, onCursor = {})
+        parser.feed("data: $l2", onHello = {}, onFrame = {}, onCursor = {})
+        parser.feed("", onHello = {}, onFrame = { frame = it }, onCursor = {})
+        assertEquals("a\nb", frame?.payloadAsText())
+    }
+
+    @Test
+    fun sseTracksLastEventIdAcrossFrames() {
+        val parser = SseParser()
+        val ids = mutableListOf<Long>()
+        val frame = """{"v":1,"type":"$TYPE_MESSAGE","payload":{}}"""
+        for (id in listOf(1L, 2L, 3L)) {
+            parser.feed("id: $id", onHello = {}, onFrame = {}, onCursor = { ids.add(it) })
+            parser.feed("event: frame", onHello = {}, onFrame = {}, onCursor = {})
+            parser.feed("data: $frame", onHello = {}, onFrame = {}, onCursor = {})
+            parser.feed("", onHello = {}, onFrame = {}, onCursor = {})
+        }
+        assertEquals(listOf(1L, 2L, 3L), ids)
+        assertEquals(3L, parser.lastEventId)
+    }
+
+    @Test
+    fun sseMalformedLineDoesNotThrow() {
+        val parser = SseParser()
+        parser.feed("garbage without colon", onHello = {}, onFrame = {}, onCursor = {})
+        parser.feed("id: notanumber", onHello = {}, onFrame = {}, onCursor = {})
+        parser.feed("data: {not json", onHello = {}, onFrame = {}, onCursor = {})
+        parser.feed("", onHello = {}, onFrame = {}, onCursor = {})
+        // No exception, no frame emitted for the malformed data.
+    }
+
+    @Test
+    fun sseDecodesFramePayload() {
+        val parser = SseParser()
+        var text: String? = null
+        val frame =
+            """{"v":1,"type":"$TYPE_MESSAGE","payload":{"message_id":"m1","role":"assistant","text":"hello"}}"""
+        parser.feed("event: frame", onHello = {}, onFrame = {}, onCursor = {})
+        parser.feed("data: $frame", onHello = {}, onFrame = {}, onCursor = {})
+        parser.feed("", onHello = {}, onFrame = { f -> text = f.payloadAsText() }, onCursor = {})
+        assertEquals("hello", text)
+    }
+}
+
+// ── SSE line parser (pure; shared by the live reader + tests) ─────────────
+
+/**
+ * Incremental SSE parser (docs/19 §19.5). Feed raw lines (without
+ * terminators); a blank line dispatches the buffered event. [lastEventId]
+ * is the most recent `id:` field (the outbox cursor) — the resume point for
+ * a reconnect.
+ */
+class SseParser {
+    var lastEventId: Long? = null
+        private set
+
+    private var eventId: String? = null
+    private val dataLines = mutableListOf<String>()
+
+    fun feed(
+        line: String,
+        onHello: (String) -> Unit,
+        onFrame: (Frame) -> Unit,
+        onCursor: (Long) -> Unit,
+    ) {
+        when {
+            line.isEmpty() -> {
+                if (dataLines.isNotEmpty()) {
+                    val data = dataLines.joinToString("\n")
+                    val frame =
+                        try {
+                            IrisJson.instance.decodeFromString(Frame.serializer(), data)
+                        } catch (e: Exception) {
+                            null
+                        }
+                    if (frame != null) {
+                        when (eventId) {
+                            "hello" -> onHello(data)
+                            else -> onFrame(frame)
+                        }
+                    }
+                }
+                eventId = null
+                dataLines.clear()
+            }
+
+            line.startsWith(":") -> {
+                Unit
+            }
+
+            // comment / heartbeat
+            line.startsWith("id:") -> {
+                val id = line.removePrefix("id:").trim().toLongOrNull()
+                if (id != null) {
+                    lastEventId = id
+                    onCursor(id)
+                }
+            }
+
+            line.startsWith("event:") -> {
+                eventId = line.removePrefix("event:").trim()
+            }
+
+            line.startsWith("data:") -> {
+                dataLines.add(line.removePrefix("data:").removePrefix(" "))
+            }
+        }
+    }
+}
+
+private fun Frame.payloadAsText(): String? = payloadAs<MessagePayload>()?.text

app/shared/src/commonTest/kotlin/iris/net/TlsPinningIntegrationTest.kt

@@ -0,0 +1,163 @@
+package iris.net
+
+import com.sun.net.httpserver.HttpsConfigurator
+import com.sun.net.httpserver.HttpsServer
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import java.io.ByteArrayInputStream
+import java.net.InetSocketAddress
+import java.security.KeyFactory
+import java.security.KeyStore
+import java.security.cert.CertificateFactory
+import java.security.spec.PKCS8EncodedKeySpec
+import java.util.Base64
+import javax.net.ssl.KeyManagerFactory
+import javax.net.ssl.SSLContext
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertFailsWith
+import kotlin.test.assertNotNull
+
+/**
+ * docs/09 §9.4: end-to-end test of the fingerprint-confirm flow over a real
+ * TLS handshake: a local HTTPS server presents the embedded self-signed
+ * certificate (SAN: 127.0.0.1) to an OkHttp client wired exactly like
+ * [GatewayClient] (pinning socket factory + trust manager).
+ *
+ * 1. Unpinned: the handshake fails and [tlsFingerprintRequired] unwraps the
+ *    presented fingerprint from the nested exception.
+ * 2. After "confirming" (setting the pin): the SAME client connects — the
+ *    pin is read live, no client rebuild.
+ *
+ * The embedded key is a throwaway test key, not a secret.
+ */
+class TlsPinningIntegrationTest {
+    private companion object {
+        // Self-signed with SAN DNS:localhost, IP:127.0.0.1 (OkHttp's hostname
+        // verifier requires a SAN; CN-only certs are rejected even when pinned).
+        val CERT_PEM =
+            """
+            -----BEGIN CERTIFICATE-----
+            MIIC+zCCAeOgAwIBAgIUGXu+y1gH9kUWHAFlHOzrN3h2TRQwDQYJKoZIhvcNAQEL
+            BQAwGDEWMBQGA1UEAwwNaXJpcy1pbnQtdGVzdDAeFw0yNjA4MjQxOTE1MTJaFw0z
+            NjA4MjExOTE1MTJaMBgxFjAUBgNVBAMMDWlyaXMtaW50LXRlc3QwggEiMA0GCSqG
+            SIb3DQEBAQUAA4IBDwAwggEKAoIBAQCtqNGuSQm7iO2GuQ+TemTZsThzPVkWrfdF
+            /R25eCHTVSHfpXnlI2gXgRf5sBMLLOKVD/eTynelf2zcfuJqwYjCc6aOv1I9Fz2C
+            Eb+GBeyLHwmh4hSrMeN3YnoeaCmZzvbqNCpjEEmmw13Heptg6ZBcwISpE+78WVFT
+            qIeMGJ7/5X9cvoVebrQ6eV0LVGmzz5iqMp9uwoPeHnT7bGN3YXO9TSbjogSQbzRs
+            PS/JcZIFIUsfbOYRbNogd3v9SfKCfz9Q2J7EB8sBx8eCqXn5Q9avxk/VVYxjQL9a
+            GqxRCp4uCgQZt3GACZYvGzbMRFGNFlvhoYf20jE7Hly7OrYzJ4v7AgMBAAGjPTA7
+            MBoGA1UdEQQTMBGCCWxvY2FsaG9zdIcEfwAAATAdBgNVHQ4EFgQUA9qqz6IWojYd
+            WSbngx8h5vq9CTYwDQYJKoZIhvcNAQELBQADggEBAGNIGSCEy1A42UNUd+xREsHm
+            EmBJ7TYzxJjmweByJwdK5GjxmpaOXgcBjUb8O0Fzm8+4P2DDr/CXhv+aNYUcSCJ3
+            Xf5cBIXzJmTVvkLzdNpCmB9w2d66J2ZQYxCOZ4pUzvcXI6gK7qkrB2HALq2LYGtE
+            dxVocLizu+FGtf4ve+CuCZs3/tJaQPZYzP4UqV1oVfkg3hV+Yg1oFYFfrAelsFkw
+            zNjVh2jTwFiEpK5E/4OJtQaThOUkbkNcSc50ATYkPau9mA1IUTsOU/UNjMTbYtG0
+            Ht5KgYObXkwm44X0rgiGHgW61wqgIEa5ogfVIeCJzHwHNcn2J9yYlgYsZ/o8vrU=
+            -----END CERTIFICATE-----
+            """.trimIndent()
+
+        val KEY_PEM =
+            """
+            -----BEGIN PRIVATE KEY-----
+            MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQCtqNGuSQm7iO2G
+            uQ+TemTZsThzPVkWrfdF/R25eCHTVSHfpXnlI2gXgRf5sBMLLOKVD/eTynelf2zc
+            fuJqwYjCc6aOv1I9Fz2CEb+GBeyLHwmh4hSrMeN3YnoeaCmZzvbqNCpjEEmmw13H
+            eptg6ZBcwISpE+78WVFTqIeMGJ7/5X9cvoVebrQ6eV0LVGmzz5iqMp9uwoPeHnT7
+            bGN3YXO9TSbjogSQbzRsPS/JcZIFIUsfbOYRbNogd3v9SfKCfz9Q2J7EB8sBx8eC
+            qXn5Q9avxk/VVYxjQL9aGqxRCp4uCgQZt3GACZYvGzbMRFGNFlvhoYf20jE7Hly7
+            OrYzJ4v7AgMBAAECggEABKYo2uQcrRcY2Mr6hkW4DnXmn3ssd+V3YbnJgm4bZbd5
+            PS4GaeJ9RmfP1wDmOZ3dgQUY6S1574XOScbh097ThPUop9iqYHVPUbyc5n8hGoZd
+            sSZGzGB9CPSrdUXvmy0FwjZcTiOg/SRszcrT/w+xrDIBOy+L7diMS1OPMWp1Uz9r
+            yHHxpjMtALToaMUHMNCRjyFRR0fgqGWnfwRVAwdKMxMQJZ0IiUXyuqgpdIBHZC+g
+            WIcntUDCiglHtuI34eoQQVVMhEm2ylaAq2tBaR7z3wGtXbbfdyWUi/DIkhS5o4HN
+            ux7AYF87WU87/0I8GpEQHdAFQKoqVgR8uaZmJ613YQKBgQDmcGZdYg4UtcjTVSDE
+            BHsLnFzapSjDebVsR2XWoztcvQIduqsh+2zV8RN3UGIOd7l9tEGWMm7rFFVOOs/f
+            utCAd4v5ZWtSs/KtSuL6PqbFuvD9jGVPaqsSAe/2WmAtG8vA/JIndFDC5CNo/Hem
+            Tj7XGAmEPKgTRLR9NY1fu0we2wKBgQDA7BemZXViw4RiEjUcsqX8yuFPGKlMyoCK
+            ieHsIO05dLD+s6BD7r8ang0twttwhCM4RoumxjEbEbRYMhu0EJKiC+wl53EM1Vcu
+            OBQAlgKMVGXKmp0K/moYOIdvb4JuHoITaYhKPyO+2/2rKLK3h+swnYJDrpOcOK7H
+            yqy1qeMBYQKBgQDRt+GxgxfFiVtn2cWkH1/MRVXMNxtOK2oNTT1FhfD0iZ9vZv9w
+            Qd3fJzPMFn/nItbRrEc0ZlnD4BFyzNt6hg5TnHjrVH3EGrj1NX40uOgWc/f3CNr6
+            190w2kqFLeLxqqZY0IRDG/yUIgSH+5z44aUXJG0kx/8+6fxJJ3+ubErumQKBgAZF
+            JhegYIpPNHRDhzphjAeFSIFbmdUHF9po1NDp2QvvAPmmOOU8UzW4QVFlbeBgSwy/
+            LjbDZkEs+CGNr1zQ1RMzM/+fYAs8u9Kiu/Ow7HBHJe/JyqTa0/Ppkm1KwIB3uV6M
+            JYPUPYMsfzga4IQahMhVtjAg8mc3aGbR7X8SAHDBAoGAOXIpfZ+mLejIlw4xUXQI
+            MMcw57cTWPQgU6w+YHt0njY4c5GcMKBxrbBMLFv0oeBj/2ZzBxw5TSWdXpA/4j3z
+            OBPuigr2mnlhJR8ahq1s0BSHhQbw7TIbazALi2cZ8Mdf7/hEIzuyY4efnyV7W+RO
+            sZ1EltfJHT57a0ub22mRtVc=
+            -----END PRIVATE KEY-----
+            """.trimIndent()
+
+        // `openssl x509 -noout -fingerprint -sha256` over CERT_PEM.
+        const val EXPECTED_FINGERPRINT =
+            "9B:25:54:2F:55:1B:20:32:34:B9:CF:E2:BB:DE:B3:E4:74:01:BF:FE:0F:5C:39:56:BE:F7:5E:E7:72:70:EB:44"
+
+        fun pemBody(pem: String): ByteArray {
+            val base64 = pem.replace(Regex("-----[A-Z ]+-----"), "").replace(" ", "").replace("\n", "")
+            return Base64.getDecoder().decode(base64)
+        }
+    }
+
+    @Test
+    fun selfSignedGatewayRequiresConfirmThenPins() {
+        val cert =
+            CertificateFactory
+                .getInstance("X.509")
+                .generateCertificate(ByteArrayInputStream(CERT_PEM.toByteArray()))
+                .let { it as java.security.cert.X509Certificate }
+        val key =
+            KeyFactory
+                .getInstance("RSA")
+                .generatePrivate(PKCS8EncodedKeySpec(pemBody(KEY_PEM)))
+
+        // Local HTTPS server presenting the self-signed cert.
+        val ks = KeyStore.getInstance(KeyStore.getDefaultType())
+        ks.load(null, null)
+        ks.setKeyEntry("iris", key, CharArray(0), arrayOf(cert))
+        val kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm())
+        kmf.init(ks, CharArray(0))
+        val serverCtx = SSLContext.getInstance("TLS")
+        serverCtx.init(kmf.keyManagers, null, null)
+
+        val server = HttpsServer.create(InetSocketAddress("127.0.0.1", 0), 0)
+        server.httpsConfigurator = HttpsConfigurator(serverCtx)
+        server.createContext("/v1/health") { exchange ->
+            val body = "ok".toByteArray()
+            exchange.sendResponseHeaders(200, body.size.toLong())
+            exchange.responseBody.use { it.write(body) }
+        }
+        server.start()
+
+        // The client is wired exactly like GatewayClient: pinning socket
+        // factory + trust manager, pin read live from a mutable holder.
+        var pin = ""
+        val tm = PinningTrustManager { pin }
+        val client = OkHttpClient.Builder().sslSocketFactory(pinningSslSocketFactory(tm), tm).build()
+        val request = Request.Builder().url("https://127.0.0.1:${server.address.port}/v1/health").build()
+
+        try {
+            // 1. Unpinned: the handshake fails; the unwrap finds the
+            //    presented fingerprint in the nested exception chain.
+            val e =
+                assertFailsWith<Exception> {
+                    client.newCall(request).execute().use { it.body!!.string() }
+                }
+            val tls = tlsFingerprintRequired(e)
+            assertNotNull(tls, "expected TlsFingerprintRequired nested in: $e")
+            assertEquals(EXPECTED_FINGERPRINT, tls.fingerprint)
+
+            // 2. User "confirms" the fingerprint: the SAME client now
+            //    connects (the pin is read live, no client rebuild).
+            pin = EXPECTED_FINGERPRINT
+            client.newCall(request).execute().use { response ->
+                assertEquals(200, response.code)
+                assertEquals("ok", response.body!!.string())
+            }
+        } finally {
+            server.stop(0)
+            client.dispatcher.executorService.shutdown()
+            client.connectionPool.evictAll()
+        }
+    }
+}

app/shared/src/commonTest/kotlin/iris/net/TlsPinningTest.kt

@@ -0,0 +1,129 @@
+package iris.net
+
+import java.io.ByteArrayInputStream
+import java.io.IOException
+import java.security.cert.CertificateFactory
+import java.security.cert.X509Certificate
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertFailsWith
+import kotlin.test.assertNotNull
+import kotlin.test.assertNull
+import kotlin.test.assertTrue
+
+/**
+ * docs/09 §9.4: unit tests for the TLS fingerprint-confirm flow.
+ *
+ * The embedded certificate is a self-signed cert (CN=iris-test-gateway) the
+ * platform trust store does NOT contain, so it exercises the exact path a
+ * self-signed gateway hits: default trust manager rejects → the pinning
+ * manager either offers the fingerprint for confirmation or accepts the
+ * user-confirmed pin.
+ */
+class TlsPinningTest {
+    private companion object {
+        // Self-signed, 10-year validity — generated with:
+        //   openssl req -x509 -newkey rsa:2048 -nodes -subj "/CN=iris-test-gateway"
+        val SELF_SIGNED_PEM =
+            """
+            -----BEGIN CERTIFICATE-----
+            MIIDGTCCAgGgAwIBAgIUTNKIelZvTA7iFA+jx819cazOkE0wDQYJKoZIhvcNAQEL
+            BQAwHDEaMBgGA1UEAwwRaXJpcy10ZXN0LWdhdGV3YXkwHhcNMjYwODI0MTkxMDA3
+            WhcNMzYwODIxMTkxMDA3WjAcMRowGAYDVQQDDBFpcmlzLXRlc3QtZ2F0ZXdheTCC
+            ASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANZ2zK/jRQFB+dHSCfXVm9pp
+            9+scyP3CjQr7Ec6b/aNfBKGoOXM5m8fvmYjJefeWgBLpr8I+g0BIn2+BNK80Tp3V
+            LlHiu3DQMmPfd7XTVQhmq19pjEYYsCcZ8QnPZ/WwMSRaQar0NKK6TS2MOHA8VdEs
+            BjeQoiTczO+HXlzXf20nhEtnWfNc3RBM0y6GIu+eKKKb9Hiri6LdpecQ9pGdxLXc
+            HZP6SjM5FH/prqoVPGV+Q1wCh6K0iwUjCGrsO0QDFvoe4W2eLG1QW6LEpNj7ym66
+            UmVG3aB9q3zpZ4Cc3kHVV43QqSgp+t5BtBLIWM0bnZ2IPbdSexpI22+AANliY3UC
+            AwEAAaNTMFEwHQYDVR0OBBYEFKUZIe8CbNWYSNkZBMRKRIYpGErJMB8GA1UdIwQY
+            MBaAFKUZIe8CbNWYSNkZBMRKRIYpGErJMA8GA1UdEwEB/wQFMAMBAf8wDQYJKoZI
+            hvcNAQELBQADggEBACJLF9A7OKWQU3wBWw00ezf6zdQcZHJvGcBTr0WSDg5/QNsj
+            GD8Dz8Feu1zCVEKXAxB3NaiO7IS/S/kR8Oo0SVs55JEfW5BHGs5Mdt74/Ch8khy/
+            Wvvj2BZakmqyW5LZkxlIPEoyhhyoCSBGQIpmCDQXKAlSrUZj9gaAn4uaBOVBIu4S
+            vIQZTtouhc1rX+Ov0HgwBCBbDPL2pBjkUUKqUrD249eyL2+qTWLAf6J56x6UYFAA
+            I2Eg5W3bTqLYz8CbnmKrR7KhfTAmkgCY1HIQpWoIVAsXRmaebzPsYeGK5gf6tnP2
+            vn2/tqbereUqqCMRr0wBZjaJzPnu46N43yOGrEs=
+            -----END CERTIFICATE-----
+            """.trimIndent()
+
+        // `openssl x509 -noout -fingerprint -sha256` over the same cert.
+        const val EXPECTED_FINGERPRINT =
+            "C8:16:8E:7A:7F:9D:6E:20:07:6F:85:50:F7:B3:E4:B4:9C:DB:70:CA:D8:18:1B:4B:50:FA:5D:FC:4A:62:8C:FA"
+
+        val CERT: X509Certificate by lazy {
+            CertificateFactory
+                .getInstance("X.509")
+                .generateCertificate(ByteArrayInputStream(SELF_SIGNED_PEM.toByteArray()))
+                .let { it as X509Certificate }
+        }
+    }
+
+    @Test
+    fun certFingerprintMatchesOpenSsl() {
+        assertEquals(EXPECTED_FINGERPRINT, certFingerprint(CERT))
+    }
+
+    @Test
+    fun unpinnedSelfSignedCertOffersFingerprintForConfirmation() {
+        val tm = PinningTrustManager { "" }
+        val e =
+            assertFailsWith<TlsFingerprintRequired> {
+                tm.checkServerTrusted(arrayOf(CERT), "RSA")
+            }
+        assertEquals(EXPECTED_FINGERPRINT, e.fingerprint)
+    }
+
+    @Test
+    fun confirmedPinAcceptsTheSelfSignedCert() {
+        val tm = PinningTrustManager { EXPECTED_FINGERPRINT }
+        // Must not throw: the user confirmed exactly this certificate.
+        tm.checkServerTrusted(arrayOf(CERT), "RSA")
+    }
+
+    @Test
+    fun wrongPinStillFailsWithThePresentedFingerprint() {
+        val tm = PinningTrustManager { "DE:AD:BE:EF" }
+        val e =
+            assertFailsWith<TlsFingerprintRequired> {
+                tm.checkServerTrusted(arrayOf(CERT), "RSA")
+            }
+        assertEquals(EXPECTED_FINGERPRINT, e.fingerprint)
+    }
+
+    @Test
+    fun pinIsReadLive() {
+        // The provider is a lambda: a pin saved AFTER the manager was built
+        // (the confirm dialog's action) takes effect without rebuilding it.
+        var pin = ""
+        val tm = PinningTrustManager { pin }
+        assertFailsWith<TlsFingerprintRequired> {
+            tm.checkServerTrusted(arrayOf(CERT), "RSA")
+        }
+        pin = EXPECTED_FINGERPRINT
+        tm.checkServerTrusted(arrayOf(CERT), "RSA")
+    }
+
+    @Test
+    fun unwrapFindsNestedTlsFingerprintRequired() {
+        val inner = TlsFingerprintRequired(EXPECTED_FINGERPRINT)
+        // The JSSE/OkHttp layers wrap the trust manager's exception in an
+        // (SSL) handshake IOException — the unwrap must find it nested.
+        val wrapped = IOException("PKIX path building failed", inner)
+        val found = tlsFingerprintRequired(wrapped)
+        assertNotNull(found)
+        assertEquals(EXPECTED_FINGERPRINT, found.fingerprint)
+        // Unrelated failures must not be misread as a confirm request.
+        assertNull(tlsFingerprintRequired(IOException("remote host closed connection")))
+        assertNull(tlsFingerprintRequired(IllegalStateException("gateway unreachable")))
+    }
+
+    @Test
+    fun pinningSocketFactoryCreatesSockets() {
+        val tm = PinningTrustManager { "" }
+        val factory = pinningSslSocketFactory(tm)
+        val socket = factory.createSocket()
+        assertTrue(socket.javaClass.name.contains("SSL"))
+        socket.close()
+    }
+}

app/shared/src/commonTest/kotlin/iris/protocol/ChannelCreatedWireTest.kt

@@ -0,0 +1,52 @@
+package iris.protocol
+
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+/** Wire tests for the channel directory `created` field (thread ordering). */
+class ChannelCreatedWireTest {
+    @Test
+    fun channelInfoDeserializesCreated() {
+        val raw =
+            """
+            {"v":1,"type":"channel.created","payload":{"chat_id":"t_9","name":"New topic",
+              "kind":"thread","parent_chat_id":"default","created":1787648374.37}}
+            """.trimIndent()
+        val frame = IrisJson.instance.decodeFromString(Frame.serializer(), raw)
+        val info = frame.payloadAs<ChannelInfo>()
+        assertEquals("t_9", info?.chatId)
+        assertEquals(1787648374.37, info?.created)
+    }
+
+    @Test
+    fun channelInfoDefaultsCreatedToZero() {
+        // Legacy gateways omit the field; the app falls back to name ordering.
+        val raw =
+            """{"v":1,"type":"channel.created","payload":{"chat_id":"t_1","name":"Old","kind":"thread"}}"""
+        val frame = IrisJson.instance.decodeFromString(Frame.serializer(), raw)
+        assertEquals(0.0, frame.payloadAs<ChannelInfo>()?.created)
+    }
+
+    @Test
+    fun threadsSortNewestFirst() {
+        // Mirrors the topic-switcher ordering in ChatScreen: created desc,
+        // name asc as the tie-break (e.g. for legacy entries with created==0).
+        val threads =
+            listOf(
+                ChannelInfo(chatId = "t_2", name = "Capital of Romania", kind = "thread", parentChatId = "default", created = 1787232736.0),
+                ChannelInfo(chatId = "t_1", name = "Capital of France", kind = "thread", parentChatId = "default", created = 1787232221.0),
+                ChannelInfo(
+                    chatId = "t_9",
+                    name = "Test file operations",
+                    kind = "thread",
+                    parentChatId = "default",
+                    created = 1787422924.0,
+                ),
+                ChannelInfo(chatId = "t_0", name = "Legacy b", kind = "thread", parentChatId = "default"),
+                ChannelInfo(chatId = "t_0a", name = "Legacy a", kind = "thread", parentChatId = "default"),
+            )
+        val ordered =
+            threads.sortedWith(compareByDescending<ChannelInfo> { it.created }.thenBy { it.name.lowercase() })
+        assertEquals(listOf("t_9", "t_2", "t_1", "t_0a", "t_0"), ordered.map { it.chatId })
+    }
+}

app/shared/src/commonTest/kotlin/iris/protocol/HelloAckWireTest.kt

@@ -0,0 +1,31 @@
+package iris.protocol
+
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+/** Wire tests for the hello.ack payload (docs/04). */
+class HelloAckWireTest {
+    @Test
+    fun helloAckDeserializesDeviceToken() {
+        val raw =
+            """
+            {"v":1,"type":"hello.ack","payload":{"sync_cursor":5,
+              "last_pushed_cursor":3,"device_token":"9f2c64hex"}}
+            """.trimIndent()
+        val frame = IrisJson.instance.decodeFromString(Frame.serializer(), raw)
+        assertEquals("hello.ack", frame.type)
+        val p = frame.payloadAs<HelloAckPayload>()
+        assertEquals("9f2c64hex", p?.deviceToken)
+        assertEquals(5L, p?.syncCursor)
+        assertEquals(3L, p?.lastPushedCursor)
+    }
+
+    @Test
+    fun helloAckDefaultsDeviceTokenToEmpty() {
+        // Legacy gateways (pre per-device tokens) omit the field entirely.
+        val raw = """{"v":1,"type":"hello.ack","payload":{"sync_cursor":1}}"""
+        val frame = IrisJson.instance.decodeFromString(Frame.serializer(), raw)
+        val p = frame.payloadAs<HelloAckPayload>()
+        assertEquals("", p?.deviceToken)
+    }
+}

app/shared/src/commonTest/kotlin/iris/util/MarkdownTest.kt

@@ -2,9 +2,9 @@ package iris.util
 
 import kotlin.test.Test
 import kotlin.test.assertEquals
+import kotlin.test.assertTrue
 
 class MarkdownTest {
-
     @Test
     fun stripsLeadingNewlines() {
         assertEquals("Hello", "\n\nHello".prepareForMarkdown())
@@ -61,4 +61,90 @@ class MarkdownTest {
         val md = "**Title:** x\n**Model:** y"
         assertEquals("**Title:** x  \n**Model:** y  ", md.preserveNewlinesAsHardBreaks())
     }
+
+    @Test
+    fun streamingTransformSkipsLastLineOnly() {
+        // Identical to the static transform except the (still-incomplete)
+        // last line gets no trailing hard-break spaces.
+        assertEquals("a  \nb", "a\nb".preserveNewlinesAsHardBreaksStreaming())
+        assertEquals("a  \n\nb", "a\n\nb".preserveNewlinesAsHardBreaksStreaming())
+        assertEquals("a", "a".preserveNewlinesAsHardBreaksStreaming())
+    }
+
+    @Test
+    fun streamingTransformLeavesFencedCodeBlocksUntouched() {
+        val md = "```kotlin\nval a = 1\nval b = 2\n```"
+        assertEquals(md, md.preserveNewlinesAsHardBreaksStreaming())
+    }
+
+    @Test
+    fun streamingTransformIsPrefixPreserving() {
+        // The core invariant the incremental renderer relies on: for every
+        // prefix p of s, transform(p) is a prefix of transform(s).
+        val docs =
+            listOf(
+                "a\nb",
+                "a\n\nb\nc",
+                "**bold** and `code`",
+                "```kotlin\nval a = 1\n```\nthen text",
+                "~~~\nx\n~~~\ny",
+                "| a | b |\n| - | - |\n| 1 | 2 |",
+                "- item\n- item2",
+                "line with trailing spaces  \nnext",
+                "",
+                "\n\n  \n",
+            )
+        for (s in docs) {
+            val whole = s.preserveNewlinesAsHardBreaksStreaming()
+            for (i in 0..s.length) {
+                val p = s.take(i)
+                val tp = p.preserveNewlinesAsHardBreaksStreaming()
+                assertTrue(
+                    whole.startsWith(tp),
+                    "prefix <$tp> not a prefix of <$whole> (doc=<$s>)",
+                )
+            }
+        }
+    }
+
+    @Test
+    fun appendChunkReturnsSuffixOnExtension() {
+        assertEquals(" world", appendChunk("Hello", "Hello world"))
+        assertEquals("", appendChunk("abc", "abc"))
+        assertEquals("abc", appendChunk("", "abc"))
+    }
+
+    @Test
+    fun appendChunkReturnsNullOnRewrite() {
+        assertEquals(null, appendChunk("Hello", "Hi"))
+        assertEquals(null, appendChunk("Hello world", "Hello"))
+        assertEquals(null, appendChunk("a  ", "ab")) // hard-break spaces shift
+    }
+
+    @Test
+    fun revealStepRevealsAtLeastOneChar() {
+        assertEquals(1, revealStep(2, charsPerSecond = 1.0, tickSeconds = 0.05))
+        assertEquals(3, revealStep(100, charsPerSecond = 60.0, tickSeconds = 0.05))
+        assertEquals(0, revealStep(0, charsPerSecond = 60.0, tickSeconds = 0.05))
+    }
+
+    @Test
+    fun revealStepCatchesUpWhenBacklogIsLarge() {
+        // Backlog beyond ~2 s of reveal time (120 * 2 = 240) jumps at once.
+        assertEquals(500, revealStep(500, charsPerSecond = 120.0, tickSeconds = 0.05))
+        assertEquals(241, revealStep(241, charsPerSecond = 120.0, tickSeconds = 0.05))
+        // At exactly 2 s of backlog it still steps normally (6 = 120 * 0.05).
+        assertEquals(6, revealStep(240, charsPerSecond = 120.0, tickSeconds = 0.05))
+    }
+
+    @Test
+    fun streamCharsPerSecondMapsSmoothnessRange() {
+        // 0.2 → 300 chars/s (fast), 0.8 → 75 chars/s (slow); out-of-range
+        // values are clamped to the ends.
+        assertEquals(300.0, streamCharsPerSecond(0.2f), 0.001)
+        assertEquals(150.0, streamCharsPerSecond(0.4f), 0.001)
+        assertEquals(75.0, streamCharsPerSecond(0.8f), 0.001)
+        assertEquals(300.0, streamCharsPerSecond(0.05f), 0.001)
+        assertEquals(75.0, streamCharsPerSecond(2.0f), 0.001)
+    }
 }

app/shared/src/desktopMain/kotlin/iris/platform/DesktopBridge.kt

@@ -1,6 +1,7 @@
 package iris.platform
 
 import iris.state.IrisController
+import java.util.concurrent.CopyOnWriteArrayList
 
 /**
  * M6: bridge between the desktop shell (tray / window) and the shared
@@ -12,19 +13,35 @@ typealias NotificationListener =
     (chatId: String?, title: String, body: String, threadId: String?) -> Unit
 
 object DesktopBridge {
+    /** True while the window has focus (set by the shell). A change is
+     *  forwarded to the controller (M8: unread clear on focus). */
     @Volatile
     var foreground: Boolean = true
+        set(value) {
+            if (field != value) {
+                field = value
+                controller?.setForeground(value)
+            }
+        }
 
     @Volatile
     var controller: IrisController? = null
 
-    private val notificationListeners = mutableListOf<NotificationListener>()
+    // M-13: CopyOnWriteArrayList — listeners are added from the UI thread and
+    // iterated from the OkHttp callback thread; a plain mutableListOf's
+    // .toList() copy is not atomic with a concurrent add.
+    private val notificationListeners = CopyOnWriteArrayList<NotificationListener>()
 
     fun onNotification(listener: NotificationListener) {
         notificationListeners.add(listener)
     }
 
-    fun notifyListeners(chatId: String?, title: String, body: String, threadId: String?) {
-        notificationListeners.toList().forEach { it(chatId, title, body, threadId) }
+    fun notifyListeners(
+        chatId: String?,
+        title: String,
+        body: String,
+        threadId: String?,
+    ) {
+        notificationListeners.forEach { it(chatId, title, body, threadId) }
     }
 }

app/shared/src/desktopMain/kotlin/iris/platform/DesktopMedia.kt

@@ -1,7 +1,6 @@
 package iris.platform
 
 import androidx.compose.foundation.background
-import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
@@ -35,7 +34,6 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.withContext
 import kotlinx.serialization.json.Json
-import kotlinx.serialization.json.JsonArray
 import kotlinx.serialization.json.JsonObject
 import kotlinx.serialization.json.JsonPrimitive
 import kotlinx.serialization.json.buildJsonArray
@@ -62,7 +60,6 @@ import kotlin.random.Random
  */
 @Composable
 actual fun MediaFilePicker(onPicked: (PickedFile?) -> Unit) {
-    var busy by remember { mutableStateOf(false) }
     Column(
         modifier =
             Modifier
@@ -71,16 +68,10 @@ actual fun MediaFilePicker(onPicked: (PickedFile?) -> Unit) {
     ) {
         Text("Attach a file:", fontSize = 13.sp)
         Spacer(modifier = Modifier.height(8.dp))
-        Button(
-            onClick = {
-                busy = true
-                val picked = pickFile()
-                busy = false
-                onPicked(picked)
-            },
-            enabled = !busy,
-        ) {
-            Text(if (busy) "Choosing…" else "Choose file…")
+        // pickFile() blocks the UI thread (JFileChooser is modal), so there's
+        // no in-flight state to show while the dialog is open.
+        Button(onClick = { onPicked(pickFile()) }) {
+            Text("Choose file…")
         }
     }
 }
@@ -138,7 +129,8 @@ private fun guessMime(name: String): String {
         "mov" -> "video/quicktime"
         "mkv" -> "video/x-matroska"
         "mp3" -> "audio/mpeg"
-        "m4a", "aac" -> "audio/mp4"
+        "m4a" -> "audio/mp4"
+        "aac" -> "audio/aac"
         "ogg", "opus" -> "audio/ogg"
         "wav" -> "audio/wav"
         "flac" -> "audio/flac"

app/shared/src/desktopMain/kotlin/iris/platform/DesktopPush.kt

@@ -59,7 +59,7 @@ object DesktopNotifier {
                                 "\$n = New-Object System.Windows.Forms.NotifyIcon; " +
                                 "\$n.Icon = [System.Drawing.SystemIcons]::Information; " +
                                 "\$n.Visible = \$true; " +
-                                "\$n.ShowBalloonTip(4000, \"${esc(title)}\", \"${esc(body)}\", " +
+                                "\$n.ShowBalloonTip(4000, \"${psEsc(title)}\", \"${psEsc(body)}\", " +
                                 "[System.Windows.Forms.ToolTipIcon]::Info); " +
                                 "Start-Sleep -Milliseconds 4500; \$n.Dispose()",
                         )
@@ -71,4 +71,16 @@ object DesktopNotifier {
     }
 
     private fun esc(s: String): String = s.replace("\\", "\\\\").replace("\"", "\\\"").replace("\n", " ")
+
+    // M-16: PowerShell uses backtick escaping (not backslash) and treats `$`
+    // as a variable reference, so a body containing `$foo` would be mangled or
+    // error. Escape backtick first (so the backticks we add aren't doubled),
+    // then `$` and `"`. Newlines collapse to spaces (balloon tips are single
+    // line).
+    private fun psEsc(s: String): String =
+        s
+            .replace("`", "``")
+            .replace("$", "`$")
+            .replace("\"", "`\"")
+            .replace("\n", " ")
 }

app/shared/src/desktopMain/kotlin/iris/platform/DesktopSecureStore.kt

@@ -5,6 +5,7 @@ import iris.protocol.IrisJson
 import iris.ui.theme.Backdrop
 import iris.ui.theme.BackgroundMode
 import iris.ui.theme.UserTheme
+import iris.util.STREAM_SMOOTHNESS_DEFAULT
 import kotlinx.serialization.Serializable
 import java.io.File
 import java.security.SecureRandom
@@ -27,7 +28,30 @@ class DesktopSecureStore : SecureStore {
     private val baseDir = File(System.getProperty("user.home"), ".iris")
     private val settingsFile = File(baseDir, "settings.json")
     private val legacyFile = File(baseDir, "pairing.json")
-    private val secret = SecretBackend(baseDir)
+    private val secret =
+        SecretBackend(
+            baseDir,
+            keyringService = "iris-gateway-token",
+            keyringLabel = "Iris gateway token",
+            keyringAttr = "iris",
+            encFileName = "pairing.enc",
+        )
+
+    // Per-device token (docs/09 §9.3): a second secret slot, same backends.
+    private val deviceSecret =
+        SecretBackend(
+            baseDir,
+            keyringService = "iris-device-token",
+            keyringLabel = "Iris device token",
+            keyringAttr = "iris-device",
+            encFileName = "device_token.enc",
+        )
+
+    // M-8: cache the parsed settings so hot-path getters (serverUrl/token per
+    // connect attempt) don't re-read + re-parse the file on every access.
+    // Invalidated on every save(). DesktopSecureStore is a per-process
+    // singleton (created once in Main.kt), so a per-instance cache is safe.
+    private var cached: Settings? = null
 
     @Serializable
     private data class Settings(
@@ -41,6 +65,7 @@ class DesktopSecureStore : SecureStore {
         val threadsEnabled: Boolean = false,
         val toolDetail: String = "truncated",
         val streamingEnabled: Boolean = true,
+        val streamSmoothness: Float = STREAM_SMOOTHNESS_DEFAULT,
         val reasoningAutoCollapse: Boolean = true,
         val userBubbleColor: Int = UserTheme.DEFAULT_USER_BUBBLE,
         val agentBubbleColor: Int = UserTheme.DEFAULT_AGENT_BUBBLE,
@@ -50,6 +75,7 @@ class DesktopSecureStore : SecureStore {
         val fontSizeScale: Float = 1.0f,
         val runtimeFooterEnabled: Boolean = false,
         val runtimeFooterFields: String = "",
+        val pinnedCertFingerprint: String = "",
     )
 
     init {
@@ -77,11 +103,15 @@ class DesktopSecureStore : SecureStore {
                 ),
             )
             if (legacy.token.isNotBlank()) secret.write(legacy.token)
-        }
+            // L-49: only delete the legacy file after a successful migration;
+            // a parse failure (legacy == null) must not destroy the data.
             legacyFile.delete()
         }
+    }
 
-    private fun load(): Settings =
+    private fun load(): Settings {
+        cached?.let { return it }
+        val s =
             if (settingsFile.exists()) {
                 try {
                     IrisJson.instance.decodeFromString(Settings.serializer(), settingsFile.readText())
@@ -91,10 +121,14 @@ class DesktopSecureStore : SecureStore {
             } else {
                 Settings()
             }
+        cached = s
+        return s
+    }
 
     private fun save(data: Settings) {
         baseDir.mkdirs()
         settingsFile.writeText(IrisJson.instance.encodeToString(Settings.serializer(), data))
+        cached = data
     }
 
     override var serverUrl: String
@@ -110,6 +144,12 @@ class DesktopSecureStore : SecureStore {
             if (value.isBlank()) secret.clear() else secret.write(value.trim())
         }
 
+    override var deviceToken: String
+        get() = deviceSecret.read().orEmpty()
+        set(value) {
+            if (value.isBlank()) deviceSecret.clear() else deviceSecret.write(value.trim())
+        }
+
     override val deviceId: String
         get() {
             val d = load()
@@ -184,6 +224,13 @@ class DesktopSecureStore : SecureStore {
             save(d.copy(streamingEnabled = value))
         }
 
+    override var streamSmoothness: Float
+        get() = load().streamSmoothness
+        set(value) {
+            val d = load()
+            save(d.copy(streamSmoothness = value))
+        }
+
     override var reasoningAutoCollapse: Boolean
         get() = load().reasoningAutoCollapse
         set(value) {
@@ -206,7 +253,7 @@ class DesktopSecureStore : SecureStore {
         }
 
     override var backgroundMode: String
-        get() = load().backgroundMode.ifBlank { "color" }
+        get() = load().backgroundMode.ifBlank { BackgroundMode.Image.name.lowercase() }
         set(value) {
             val d = load()
             save(d.copy(backgroundMode = value))
@@ -247,6 +294,13 @@ class DesktopSecureStore : SecureStore {
             save(d.copy(runtimeFooterFields = value))
         }
 
+    override var pinnedCertFingerprint: String
+        get() = load().pinnedCertFingerprint
+        set(value) {
+            val d = load()
+            save(d.copy(pinnedCertFingerprint = value.trim()))
+        }
+
     override fun savePairing(
         url: String,
         token: String,
@@ -254,12 +308,31 @@ class DesktopSecureStore : SecureStore {
         val d = load()
         save(d.copy(serverUrl = url.trim()))
         if (token.isBlank()) secret.clear() else secret.write(token.trim())
+        // A (re-)pair may target a different gateway: the old per-device
+        // token is dead there. The next hello.ack re-mints/returns it.
+        deviceSecret.clear()
     }
 
     override fun clear() {
+        // M-10: clearing pairing must also wipe the device identity + push
+        // state, otherwise a re-pair to a different gateway would keep the old
+        // deviceId/syncCursor/ntfyTopic and the server would treat the new
+        // pairing as the same device.
         val d = load()
-        save(d.copy(serverUrl = ""))
+        save(
+            d.copy(
+                serverUrl = "",
+                deviceId = "",
+                syncCursor = 0L,
+                fcmToken = "",
+                ntfyTopic = "",
+                ntfyServer = "",
+                pushBackend = "",
+                pinnedCertFingerprint = "",
+            ),
+        )
         secret.clear()
+        deviceSecret.clear()
     }
 }
 
@@ -278,20 +351,33 @@ private data class PairingData(
 /**
  * Token storage: OS keyring when available, else an AES-GCM encrypted file.
  * All backend failures degrade to the encrypted file (never plaintext).
+ *
+ * Parameterized so the shared gateway token and the per-device token
+ * (docs/09 §9.3) each get their own keyring entry / encrypted file.
  */
 private class SecretBackend(
     private val baseDir: File,
+    private val keyringService: String,
+    private val keyringLabel: String,
+    private val keyringAttr: String,
+    encFileName: String,
 ) {
-    private val encFile = File(baseDir, "pairing.enc")
+    private val encFile = File(baseDir, encFileName)
     private val keyFile = File(baseDir, ".key")
-    private val keyring: KeyringBackend? = KeyringBackend().takeIf { it.available }
+    private val keyring: KeyringBackend? =
+        KeyringBackend(keyringService, keyringLabel, keyringAttr).takeIf { it.available }
 
     fun read(): String? = keyring?.read() ?: readEncrypted()
 
     fun write(value: String) {
         if (keyring != null) {
             keyring.write(value)
-            if (keyring.read() == value) return
+            if (keyring.read() == value) {
+                // L-50: the keyring now holds the secret; drop the stale
+                // encrypted file so the old token can't be read back.
+                encFile.delete()
+                return
+            }
             // Keyring accepted the write but did not persist it (e.g. KWallet
             // without a live daemon). Drop the stale entry and fall back to
             // the encrypted file so the token survives a restart.
@@ -355,7 +441,11 @@ private class SecretBackend(
 }
 
 /** OS keyring via the platform CLI (best effort). */
-private class KeyringBackend {
+private class KeyringBackend(
+    private val service: String,
+    private val label: String,
+    private val attr: String,
+) {
     private val os = System.getProperty("os.name").lowercase()
     private val isMac = os.contains("mac")
     private val isLinux = os.contains("linux")
@@ -374,9 +464,9 @@ private class KeyringBackend {
     fun read(): String? =
         try {
             if (isMac) {
-                out(listOf("security", "find-generic-password", "-a", "iris", "-s", "iris-gateway-token", "-w"))
+                out(listOf("security", "find-generic-password", "-a", "iris", "-s", service, "-w"))
             } else {
-                out(listOf("secret-tool", "lookup", "app", "iris"))
+                out(listOf("secret-tool", "lookup", "app", attr))
             }
         } catch (_: Exception) {
             null
@@ -384,28 +474,28 @@ private class KeyringBackend {
 
     fun write(value: String) {
         try {
+            // M-9: pass the secret on stdin, not as a CLI argument. A trailing
+            // argument is visible in the process list (`ps`); `secret-tool
+            // store` and `security add-generic-password -w` both read the
+            // secret from stdin when no value argument is given.
+            val cmd =
                 if (isMac) {
-                ProcessBuilder(
+                    listOf(
                         "security",
                         "add-generic-password",
                         "-U",
                         "-a",
                         "iris",
                         "-s",
-                    "iris-gateway-token",
+                        service,
                         "-w",
-                    value,
-                ).inheritIO().start().waitFor()
+                    )
                 } else {
-                ProcessBuilder(
-                    "secret-tool",
-                    "store",
-                    "--label=Iris gateway token",
-                    "app",
-                    "iris",
-                    "token",
-                    value,
-                ).inheritIO().start().waitFor()
+                    listOf("secret-tool", "store", "--label=$label", "app", attr)
+                }
+            ProcessBuilder(cmd).start().apply {
+                outputStream.use { it.write(value.toByteArray(Charsets.UTF_8)) }
+                waitFor()
             }
         } catch (_: Exception) {
         }
@@ -420,14 +510,14 @@ private class KeyringBackend {
                     "-a",
                     "iris",
                     "-s",
-                    "iris-gateway-token",
+                    service,
                 ).inheritIO().start().waitFor()
             } else {
                 ProcessBuilder(
                     "secret-tool",
                     "clear",
                     "app",
-                    "iris",
+                    attr,
                 ).inheritIO().start().waitFor()
             }
         } catch (_: Exception) {

app/shared/src/desktopMain/kotlin/iris/platform/DesktopStorage.kt

@@ -4,13 +4,41 @@ import app.cash.sqldelight.db.SqlDriver
 import app.cash.sqldelight.driver.jdbc.sqlite.JdbcSqliteDriver
 import iris.db.IrisDatabase
 import java.io.File
+import java.sql.DriverManager
+import java.util.Properties
 
 actual fun appDataDir(): String = File(System.getProperty("user.home"), ".iris").apply { mkdirs() }.absolutePath
 
-actual fun createCacheDriver(): SqlDriver {
-    val driver = JdbcSqliteDriver("jdbc:sqlite:${File(appDataDir(), "iris_cache.db").absolutePath}")
-    // v1: create the schema (no migrations yet; add .sqm files +
-    // `Schema.migrate` when the schema changes).
-    IrisDatabase.Schema.create(driver)
-    return driver
+actual fun createCacheDriver(): SqlDriver = createCacheDriver(File(appDataDir(), "iris_cache.db"))
+
+/** Schema-aware driver for the cache DB at [file]: creates the schema on
+ *  first run, applies pending .sqm migrations on existing DBs (e.g. v1 ->
+ *  v2: the `tool` table), and persists the schema version (PRAGMA
+ *  user_version). */
+internal fun createCacheDriver(file: File): SqlDriver {
+    stampLegacyV1(file)
+    return JdbcSqliteDriver("jdbc:sqlite:${file.absolutePath}", Properties(), IrisDatabase.Schema)
+}
+
+/** One-time shim for pre-existing desktop cache DBs: the old code called
+ *  `Schema.create()` directly, which never stamped PRAGMA user_version — so
+ *  those files hold the v1 schema at user_version 0, which the schema-aware
+ *  driver would treat as a fresh DB and crash on (`CREATE TABLE message` on
+ *  an existing table). Stamp them as v1 so the 1 -> 2 migration runs. */
+internal fun stampLegacyV1(file: File) {
+    if (!file.exists()) return
+    DriverManager.getConnection("jdbc:sqlite:${file.absolutePath}").use { conn ->
+        val userVersion =
+            conn.createStatement().use { st ->
+                st.executeQuery("PRAGMA user_version").use { rs -> if (rs.next()) rs.getInt(1) else 0 }
+            }
+        if (userVersion != 0) return
+        val hasMessageTable =
+            conn.createStatement().use { st ->
+                st
+                    .executeQuery("SELECT 1 FROM sqlite_master WHERE type = 'table' AND name = 'message'")
+                    .use { rs -> rs.next() }
+            }
+        if (hasMessageTable) conn.createStatement().use { st -> st.execute("PRAGMA user_version = 1") }
+    }
 }

app/shared/src/desktopMain/kotlin/iris/platform/PlatformQr.kt

@@ -0,0 +1,12 @@
+package iris.platform
+
+import androidx.compose.runtime.Composable
+
+/**
+ * Desktop has no camera, so there is nothing to scan. The Connect screen hides
+ * this button on desktop (`isDesktop`), so this is never rendered.
+ */
+@Composable
+actual fun QrScanButton(onResult: (String?) -> Unit) {
+    // No-op on desktop.
+}

app/shared/src/desktopTest/kotlin/iris/data/CacheMigrationTest.kt

@@ -0,0 +1,97 @@
+package iris.data
+
+import iris.platform.createCacheDriver
+import java.io.File
+import java.nio.file.Files
+import java.sql.DriverManager
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+/** Migration path for pre-existing desktop cache DBs: the schema-aware
+ *  driver plus the legacy user_version-0 shim (DesktopStorage). */
+class CacheMigrationTest {
+    private val v1Schema =
+        """
+        CREATE TABLE message (
+            lane TEXT NOT NULL,
+            id TEXT NOT NULL,
+            ts INTEGER NOT NULL,
+            payload TEXT NOT NULL,
+            PRIMARY KEY (lane, id)
+        );
+        CREATE TABLE channel (
+            chat_id TEXT NOT NULL,
+            payload TEXT NOT NULL,
+            PRIMARY KEY (chat_id)
+        );
+        CREATE TABLE meta (
+            key TEXT NOT NULL,
+            value TEXT NOT NULL,
+            PRIMARY KEY (key)
+        );
+        """.trimIndent()
+
+    private fun tempDb(name: String): File = Files.createTempDirectory("iris_cache_test").toFile().let { File(it, name) }
+
+    private fun File.queryInt(sql: String): Int =
+        DriverManager.getConnection("jdbc:sqlite:$absolutePath").use { conn ->
+            conn.createStatement().use { st ->
+                st.executeQuery(sql).use { rs -> if (rs.next()) rs.getInt(1) else -1 }
+            }
+        }
+
+    private fun File.writeV1(userVersion: Int) {
+        DriverManager.getConnection("jdbc:sqlite:$absolutePath").use { conn ->
+            conn.createStatement().use { st ->
+                v1Schema
+                    .split(";")
+                    .map { it.trim() }
+                    .filter { it.isNotEmpty() }
+                    .forEach { st.execute(it) }
+                st.execute("INSERT INTO message (lane, id, ts, payload) VALUES ('l', 'm1', 1, '{}')")
+                // (row simulates a legacy DB with data; must survive migration)
+                if (userVersion > 0) st.execute("PRAGMA user_version = $userVersion")
+            }
+        }
+    }
+
+    @Test
+    fun legacyV1DbWithZeroUserVersionMigrates() {
+        val file = tempDb("legacy0.db")
+        try {
+            // The old desktop code called Schema.create() directly, which
+            // never stamped user_version: v1 tables at user_version 0.
+            file.writeV1(userVersion = 0)
+            // Must migrate (1 -> 2 via the shim), not crash on
+            // `CREATE TABLE message` against the existing table.
+            createCacheDriver(file).use { }
+            assertEquals(1, file.queryInt("SELECT COUNT(*) FROM message"))
+            assertEquals(1, file.queryInt("SELECT 1 FROM sqlite_master WHERE type = 'table' AND name = 'tool'"))
+        } finally {
+            file.parentFile?.deleteRecursively()
+        }
+    }
+
+    @Test
+    fun legacyV1DbWithStampedVersionMigrates() {
+        val file = tempDb("legacy1.db")
+        try {
+            file.writeV1(userVersion = 1)
+            createCacheDriver(file).use { }
+            assertEquals(1, file.queryInt("SELECT 1 FROM sqlite_master WHERE type = 'table' AND name = 'tool'"))
+        } finally {
+            file.parentFile?.deleteRecursively()
+        }
+    }
+
+    @Test
+    fun freshDbCreatesSchema() {
+        val file = tempDb("fresh.db")
+        try {
+            createCacheDriver(file).use { }
+            assertEquals(1, file.queryInt("SELECT 1 FROM sqlite_master WHERE type = 'table' AND name = 'tool'"))
+        } finally {
+            file.parentFile?.deleteRecursively()
+        }
+    }
+}

app/shared/src/jvmMain/kotlin/iris/media/FileSourceJvm.kt

@@ -1,16 +0,0 @@
-package iris.media
-
-import java.io.File
-
-actual class FileSource actual constructor(path: String) : AutoCloseable {
-    private val file = File(path)
-    private val input = file.inputStream()
-
-    actual fun size(): Long = file.length()
-
-    actual fun read(buf: ByteArray): Int = input.read(buf)
-
-    override fun close() {
-        input.close()
-    }
-}

app/shared/src/jvmMain/kotlin/iris/media/MediaCacheJvm.kt

@@ -5,22 +5,44 @@ import java.io.FileOutputStream
 
 actual interface MediaWriter : AutoCloseable {
     actual val path: String
+
     actual fun write(bytes: ByteArray)
 }
 
-actual class MediaCache actual constructor(baseDir: String) {
+actual class MediaCache actual constructor(
+    baseDir: String,
+) {
     private val maxBytes: Long = 500L * 1024 * 1024
     private val mediaDir: File = File(baseDir, "media").apply { mkdirs() }
 
-    actual fun path(mediaId: String, mime: String): String? {
-        val f = File(mediaDir, "$mediaId${extForMime(mime)}")
+    /**
+     * Resolve the cache file for [mediaId]. The id is server-controlled
+     * (`media.offer`); reject path-traversal values so a hostile gateway can't
+     * write outside [mediaDir] (M-2 / S-1). Returns null when the id is
+     * invalid.
+     */
+    private fun fileFor(
+        mediaId: String,
+        mime: String,
+    ): File? = if (!isValidMediaId(mediaId)) null else File(mediaDir, "$mediaId${extForMime(mime)}")
+
+    actual fun path(
+        mediaId: String,
+        mime: String,
+    ): String? {
+        val f = fileFor(mediaId, mime) ?: return null
         return if (f.exists()) f.absolutePath else null
     }
 
-    actual fun openWriter(mediaId: String, mime: String): MediaWriter =
-        JvmMediaWriter(File(mediaDir, "$mediaId${extForMime(mime)}"), this)
+    actual fun openWriter(
+        mediaId: String,
+        mime: String,
+    ): MediaWriter = JvmMediaWriter(fileFor(mediaId, mime) ?: throw IllegalArgumentException("invalid media id"), this)
 
-    actual fun remove(mediaId: String, mime: String) {
+    actual fun remove(
+        mediaId: String,
+        mime: String,
+    ) {
         path(mediaId, mime)?.let { File(it).delete() }
     }
 
@@ -36,7 +58,10 @@ actual class MediaCache actual constructor(baseDir: String) {
     }
 }
 
-private class JvmMediaWriter(private val target: File, private val cache: MediaCache) : MediaWriter {
+private class JvmMediaWriter(
+    private val target: File,
+    private val cache: MediaCache,
+) : MediaWriter {
     private val out: FileOutputStream = FileOutputStream(File(target.parentFile, "${target.name}.part"))
 
     override val path: String get() = target.absolutePath

app/shared/src/jvmTest/kotlin/iris/data/ChatDbTest.kt

@@ -6,7 +6,9 @@ import iris.protocol.ChannelInfo
 import iris.protocol.RuntimeMeta
 import kotlin.test.Test
 import kotlin.test.assertEquals
+import kotlin.test.assertFalse
 import kotlin.test.assertNull
+import kotlin.test.assertTrue
 
 /** Cache DB round-trip tests (JDBC in-memory SQLite; shared by both host targets). */
 class ChatDbTest {
@@ -41,31 +43,89 @@ class ChatDbTest {
         val db = newDb()
         db.saveLanes(
             mapOf(
-                "android:default" to
-                    listOf(
+                "default" to
+                    listOf<ChatItem>(
                         msg("m1", ts = 100),
+                        ToolItem(id = "tool_1", index = 0, name = "bash", anchorId = "m1"),
                         msg("m2", role = "assistant", text = "hi", ts = 200),
-                        ToolItem(id = "tool_1", index = 0, name = "bash"),
                     ),
-                "android:default::thr_1" to listOf(msg("m3", ts = 300)),
+                "default::thr_1" to listOf<ChatItem>(msg("m3", ts = 300)),
             ),
         )
         val loaded = db.loadLanes()
-        assertEquals(setOf("android:default", "android:default::thr_1"), loaded.keys)
-        // Tool cards are ephemeral — not persisted.
-        assertEquals(listOf("m1", "m2"), loaded["android:default"]!!.map { it.id })
-        assertEquals(listOf("m3"), loaded["android:default::thr_1"]!!.map { it.id })
-        // Ordered by ts.
-        assertEquals(100L, loaded["android:default"]!![0].ts)
-        assertEquals(200L, loaded["android:default"]!![1].ts)
+        assertEquals(setOf("default", "default::thr_1"), loaded.keys)
+        // Tool cards are persisted and restored at their anchored position
+        // (after the message they follow, before the answer).
+        assertEquals(listOf("m1", "tool_1", "m2"), loaded["default"]!!.map { it.id })
+        assertEquals(listOf("m3"), loaded["default::thr_1"]!!.map { it.id })
+        // Messages ordered by ts.
+        assertEquals(100L, (loaded["default"]!![0] as MessageItem).ts)
+        assertEquals(200L, (loaded["default"]!![2] as MessageItem).ts)
+    }
+
+    @Test
+    fun toolCardsShareAnchorKeepOrder() {
+        val db = newDb()
+        db.saveLanes(
+            mapOf(
+                "default" to
+                    listOf<ChatItem>(
+                        msg("m1", ts = 100),
+                        ToolItem(id = "tool_1", index = 0, name = "search_files", anchorId = "m1"),
+                        ToolItem(id = "tool_2", index = 1, name = "terminal", anchorId = "m1"),
+                        msg("m2", role = "assistant", ts = 200),
+                    ),
+            ),
+        )
+        assertEquals(listOf("m1", "tool_1", "tool_2", "m2"), db.loadLanes()["default"]!!.map { it.id })
+    }
+
+    @Test
+    fun toolCardWithMissingAnchorFallsToEnd() {
+        val db = newDb()
+        db.saveLanes(
+            mapOf(
+                "default" to
+                    listOf<ChatItem>(
+                        msg("m1", ts = 100),
+                        ToolItem(id = "tool_1", index = 0, name = "bash", anchorId = "deleted"),
+                        msg("m2", role = "assistant", ts = 200),
+                    ),
+            ),
+        )
+        assertEquals(listOf("m1", "m2", "tool_1"), db.loadLanes()["default"]!!.map { it.id })
+    }
+
+    @Test
+    fun restoreClosesOpenToolCard() {
+        val db = newDb()
+        db.saveLanes(
+            mapOf(
+                "default" to
+                    listOf<ChatItem>(
+                        msg("m1", ts = 100),
+                        ToolItem(id = "tool_1", index = 0, name = "bash", done = false, anchorId = "m1"),
+                        ToolItem(id = "tool_2", index = 1, name = "ls", done = true, ok = true, anchorId = "m1"),
+                    ),
+            ),
+        )
+        val lane = db.loadLanes()["default"]!!
+        // The process died before tool.end — the open card is closed as
+        // interrupted, not left spinning.
+        val open = lane.first { it.id == "tool_1" } as ToolItem
+        assertTrue(open.done)
+        assertFalse(open.ok)
+        // A completed card is untouched.
+        val done = lane.first { it.id == "tool_2" } as ToolItem
+        assertTrue(done.ok)
     }
 
     @Test
     fun saveLanesReplacesPreviousSnapshot() {
         val db = newDb()
-        db.saveLanes(mapOf("android:default" to listOf(msg("m1"), msg("m2"))))
-        db.saveLanes(mapOf("android:default" to listOf(msg("m2"))))
-        assertEquals(listOf("m2"), db.loadLanes()["android:default"]!!.map { it.id })
+        db.saveLanes(mapOf("default" to listOf(msg("m1"), msg("m2"))))
+        db.saveLanes(mapOf("default" to listOf(msg("m2"))))
+        assertEquals(listOf("m2"), db.loadLanes()["default"]!!.map { it.id })
     }
 
     @Test
@@ -73,7 +133,7 @@ class ChatDbTest {
         val db = newDb()
         db.saveLanes(
             mapOf(
-                "android:default" to
+                "default" to
                     listOf(
                         msg("p1", status = MsgStatus.Pending, pending = true, ts = 0),
                         msg("s1", role = "assistant", streaming = true, ts = 500),
@@ -81,22 +141,23 @@ class ChatDbTest {
                     ),
             ),
         )
-        val lane = db.loadLanes()["android:default"]!!
+        val lane = db.loadLanes()["default"]!!
+        val msgItem = { id: String -> lane.first { it.id == id } as MessageItem }
         // A pending send becomes failed (tap to retry); the gateway never
         // acknowledged it before the process died.
-        assertEquals(MsgStatus.Failed, lane.first { it.id == "p1" }.status)
-        assertEquals(false, lane.first { it.id == "p1" }.pending)
+        assertEquals(MsgStatus.Failed, msgItem("p1").status)
+        assertEquals(false, msgItem("p1").pending)
         // A streaming bubble is restored as finalized.
-        assertEquals(false, lane.first { it.id == "s1" }.streaming)
+        assertEquals(false, msgItem("s1").streaming)
         // Read status is preserved.
-        assertEquals(MsgStatus.Read, lane.first { it.id == "r1" }.status)
+        assertEquals(MsgStatus.Read, msgItem("r1").status)
     }
 
     @Test
     fun systemMessagesAreNotPersisted() {
         val db = newDb()
-        db.saveLanes(mapOf("android:default" to listOf(msg("sys_1", role = "system", isSystem = true))))
-        assertEquals(emptyMap<String, List<MessageItem>>(), db.loadLanes())
+        db.saveLanes(mapOf("default" to listOf<ChatItem>(msg("sys_1", role = "system", isSystem = true))))
+        assertTrue(db.loadLanes().isEmpty())
     }
 
     @Test
@@ -121,8 +182,8 @@ class ChatDbTest {
                         ),
                     ),
             )
-        db.saveLanes(mapOf("android:default" to listOf(item)))
-        val loaded = db.loadLanes()["android:default"]!!.first()
+        db.saveLanes(mapOf("default" to listOf<ChatItem>(item)))
+        val loaded = db.loadLanes()["default"]!!.first() as MessageItem
         assertEquals("gpt", loaded.runtime?.model)
         assertEquals("/tmp/a.png", loaded.media.first().localPath)
     }
@@ -132,28 +193,28 @@ class ChatDbTest {
         val db = newDb()
         db.saveChannels(
             listOf(
-                ChannelInfo(chatId = "android:default", name = "General", isDefault = true),
-                ChannelInfo(chatId = "android:chan_1", name = "Work"),
-                ChannelInfo(chatId = "thr_1", name = "Topic", kind = "thread", parentChatId = "android:chan_1"),
+                ChannelInfo(chatId = "default", name = "General", isDefault = true),
+                ChannelInfo(chatId = "chan_1", name = "Work"),
+                ChannelInfo(chatId = "thr_1", name = "Topic", kind = "thread", parentChatId = "chan_1"),
             ),
         )
         val loaded = db.loadChannels()
         assertEquals(3, loaded.size)
-        assertEquals("Work", loaded.first { it.chatId == "android:chan_1" }.name)
+        assertEquals("Work", loaded.first { it.chatId == "chan_1" }.name)
         assertEquals("thread", loaded.first { it.chatId == "thr_1" }.kind)
-        assertEquals(true, loaded.first { it.chatId == "android:default" }.isDefault)
+        assertEquals(true, loaded.first { it.chatId == "default" }.isDefault)
     }
 
     @Test
     fun metaRoundTripAndClearAll() {
         val db = newDb()
         assertNull(db.metaGet("last_lane"))
-        db.metaPut("last_lane", "android:chan_1")
-        assertEquals("android:chan_1", db.metaGet("last_lane"))
-        db.saveLanes(mapOf("android:default" to listOf(msg("m1"))))
-        db.saveChannels(listOf(ChannelInfo(chatId = "android:default", name = "General")))
+        db.metaPut("last_lane", "chan_1")
+        assertEquals("chan_1", db.metaGet("last_lane"))
+        db.saveLanes(mapOf("default" to listOf<ChatItem>(msg("m1"))))
+        db.saveChannels(listOf(ChannelInfo(chatId = "default", name = "General")))
         db.clearAll()
-        assertEquals(emptyMap<String, List<MessageItem>>(), db.loadLanes())
+        assertTrue(db.loadLanes().isEmpty())
         assertEquals(emptyList<ChannelInfo>(), db.loadChannels())
         assertNull(db.metaGet("last_lane"))
     }

app/shared/src/jvmTest/kotlin/iris/util/PairLinkTest.kt

@@ -0,0 +1,89 @@
+package iris.util
+
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertNull
+import kotlin.test.assertTrue
+
+/**
+ * Parser tests for `iris://pair` links (docs/20). The payload shape mirrors
+ * `pairing.qr_payload` on the gateway side.
+ */
+class PairLinkTest {
+    private val token = "ab".repeat(32) // 64 hex chars
+
+    @Test
+    fun parsesValidLink() {
+        val link = PairLink.parse("iris://pair?host=192.168.1.50&port=8791&secure=0&token=$token")
+        assertEquals("http://192.168.1.50:8791", link?.url)
+        assertEquals(token, link?.token)
+    }
+
+    @Test
+    fun defaultsPortTo8791() {
+        val link = PairLink.parse("iris://pair?host=10.0.0.5&token=$token")
+        assertEquals("http://10.0.0.5:8791", link?.url)
+    }
+
+    @Test
+    fun secureOneSelectsHttps() {
+        val link = PairLink.parse("iris://pair?host=10.0.0.5&port=8443&secure=1&token=$token")
+        assertEquals("https://10.0.0.5:8443", link?.url)
+    }
+
+    @Test
+    fun schemeIsCaseInsensitive() {
+        val link = PairLink.parse("IRIS://pair?host=10.0.0.5&token=$token")
+        assertEquals("http://10.0.0.5:8791", link?.url)
+    }
+
+    @Test
+    fun percentDecodesHost() {
+        // A hostname with a space would be %20 on the wire.
+        val link = PairLink.parse("iris://pair?host=my%20host&token=$token")
+        assertEquals("http://my host:8791", link?.url)
+    }
+
+    @Test
+    fun rejectsMissingToken() {
+        assertNull(PairLink.parse("iris://pair?host=10.0.0.5&port=8791"))
+    }
+
+    @Test
+    fun rejectsEmptyToken() {
+        assertNull(PairLink.parse("iris://pair?host=10.0.0.5&token="))
+    }
+
+    @Test
+    fun rejectsMissingHost() {
+        assertNull(PairLink.parse("iris://pair?port=8791&token=$token"))
+    }
+
+    @Test
+    fun rejectsBadPort() {
+        assertNull(PairLink.parse("iris://pair?host=10.0.0.5&port=0&token=$token"))
+        assertNull(PairLink.parse("iris://pair?host=10.0.0.5&port=70000&token=$token"))
+        assertNull(PairLink.parse("iris://pair?host=10.0.0.5&port=abc&token=$token"))
+    }
+
+    @Test
+    fun rejectsWrongScheme() {
+        assertNull(PairLink.parse("foo://pair?host=10.0.0.5&token=$token"))
+    }
+
+    @Test
+    fun rejectsWrongHost() {
+        assertNull(PairLink.parse("iris://chat?host=10.0.0.5&token=$token"))
+    }
+
+    @Test
+    fun rejectsNoAuthority() {
+        assertNull(PairLink.parse("pair?host=10.0.0.5&token=$token"))
+    }
+
+    @Test
+    fun acceptsBoundaryPorts() {
+        assertTrue(PairLink.parse("iris://pair?host=h&port=1&token=$token") != null)
+        assertTrue(PairLink.parse("iris://pair?host=h&port=65535&token=$token") != null)
+    }
+}

docs/00-overview.md

@@ -11,8 +11,8 @@ create.
 
 ## Goals
 
-- **Native feel.** Real Android app (Kotlin/Compose), not a WebView. Desktop
-  app that is the same app, resized for a big screen.
+- **Native feel.** Real native app (Iris on Android, Kotlin/Compose), not a
+  WebView. Desktop app that is the same app, resized for a big screen.
 - **First-class gateway citizen.** The app is a hermes *messaging platform*, so
   everything the gateway already does "just works": slash commands, cron
   delivery, `send_message` routing, coexistence with Telegram/Discord/etc.
@@ -46,7 +46,7 @@ Everything in the feature checklist below.
 | Tool output (app decides how much) | Emits **structured** tool events | App setting: everything / truncated / nothing |
 | Reasoning shown before message | Captures + splits reasoning | Collapsible "Reasoning" block above message |
 | Intermediate messages | Forwards `Commentary` events | Distinct dimmed bubble |
-| Threading + channels; default chat; user channels for cron | `chat_id`/`thread_id` model; cron `deliver=android:<chat>[:<thread>]` | Channel list, thread toggle, "new channel" |
+| Threading + channels; default chat; user channels for cron | `chat_id`/`thread_id` model; cron `deliver=iris:<chat>[:<thread>]` | Channel list, thread toggle, "new channel" |
 | Search ("everywhere" / "this chat/channel") | FTS5 session search bridge | Search UI + scope toggle |
 | Attach media (music/video/images/docs) | Inbound cache; outbound `send_*` | Pickers + chunked upload + preview |
 | Push notifications | FCM (primary) / ntfy (fallback) | FCM token / ntfy topic + notification service |
@@ -57,7 +57,7 @@ Everything in the feature checklist below.
 | Decision | Choice |
 | --- | --- |
 | Desktop app tech | **Compose Multiplatform** (shares Android code; "tweaked" for big screen) |
-| Push backend | **Both** — FCM primary, ntfy fallback (`ANDROID_PUSH_BACKEND`) |
+| Push backend | **Both** — ntfy default, FCM optional (`IRIS_PUSH_BACKEND`) |
 | Media transport | **Over the WebSocket** (chunked binary frames; no extra Python deps) |
 | Phone default layout | **User-toggleable, single-pane default** (auto two-pane on large screens) |
 
@@ -66,7 +66,7 @@ Everything in the feature checklist below.
 1. **`hermes-agent/` is a read-only research reference.** It lives next to this
    folder for study only. It is **git-ignored** and must **never** be committed,
    pushed, or included in any artifact. Our plugin is *installed* into a live
-   hermes home (`~/.hermes/plugins/android`); we never edit hermes core files.
+   hermes home (`~/.hermes/plugins/iris`); we never edit hermes core files.
 2. **ADB is available and a device is connected** (`a5ca2a4b`, Xiaomi MIX 2S,
    Android 10 / API 29). Use `adb install` / `adb logcat` / `adb shell am start`
    to install, launch, and debug the app on-device throughout the build.
@@ -88,6 +88,6 @@ Everything in the feature checklist below.
 ## Naming
 
 - Product/effort name: **Iris × Hermes** (folder `iris_x_hermes`).
-- hermes platform name: **`android`** (the plugin registers `Platform("android")`).
+- hermes platform name: **`iris`** (the plugin registers `Platform("iris")`).
 - WS default port: **8790** (configurable).
-- Default chat id: **`android:default`** (the home channel).
+- Default chat id: **`default`** (the home channel).

docs/01-architecture.md

@@ -11,8 +11,8 @@
 │   │        │                                                                          │           │
 │   │        ▼  legacy stream callbacks (delta / tool-progress / commentary)           │           │
 │   │  ┌──────────────────────────────┐         ┌────────────────────────────────┐     │           │
-│   │  │  android PLATFORM PLUGIN     │◄───────►│  WebSocket SERVER (websockets) │     │           │
-│   │  │  AndroidAdapter              │  JSON   │  ws://host:8790/ws             │     │           │
+│   │  │  IRIS PLATFORM PLUGIN        │◄───────►│  WebSocket SERVER (websockets) │     │           │
+│   │  │  IrisAdapter              │  JSON   │  ws://host:8790/ws             │     │           │
 │   │  │  (BasePlatformAdapter)       │ frames  │  + media + FCM-token + pairing │     │           │
 │   │  │  • send / edit / stream      │         └───────────────┬────────────────┘     │           │
 │   │  │  • media cache               │                         │ WSS                  │           │
@@ -26,7 +26,7 @@
                                              │                 │   Google FCM cloud  │
                                              ▼                 │            │        │
                                   ┌────────────────────────┐   │            ▼        │
-                                  │  ANDROID APP           │◄──┴── (wake) ┌──────────┐
+                                  │  IRIS APP (ANDROID)    │◄──┴── (wake) ┌──────────┐
                                   │  (Kotlin / Compose)    │   WSS       │  PHONE   │
                                   │  • WS client (OkHttp)  │◄───────────►│ MIX 2S   │
                                   │  • ExoPlayer           │             │ (API 29) │
@@ -40,8 +40,8 @@
 ## Process model
 
 - **One `hermes gateway` process** hosts the agent core, the session store, the
-  cron scheduler, *and* our `android` platform plugin. The plugin's WebSocket
-  server runs on the gateway's asyncio loop (started in `AndroidAdapter.connect()`).
+  cron scheduler, *and* our `iris` platform plugin. The plugin's WebSocket
+  server runs on the gateway's asyncio loop (started in `IrisAdapter.connect()`).
 - **The app is a client.** It *initiates* the WS connection to the gateway
   (outbound), so no inbound port is needed on the phone. For LAN/remote access
   the user points the app at the gateway's LAN IP / Tailscale name / a WSS
@@ -56,7 +56,7 @@ serves Telegram/Discord/… and cron) and the **`tui_gateway`** JSON-RPC backend
 (used by the TUI and the existing Electron desktop app). We deliberately use the
 **messaging gateway** because:
 
-1. **Cron delivery is native.** Cron jobs resolve `deliver=android:<chat>[:<thread>]`
+1. **Cron delivery is native.** Cron jobs resolve `deliver=iris:<chat>[:<thread>]`
    through the platform registry and call our adapter's `send()`. No bridging.
 2. **`send_message` tool routing** works out of the box (plugin
    `parse_target_ref_fn`).
@@ -80,13 +80,13 @@ protocol (`04-wire-protocol.md`) that borrows familiar names (`message.*`,
 | **Reasoning split in the adapter** | The gateway prepends reasoning to the final text when `show_reasoning` is on; the adapter splits the stable prefix into a `reasoning` field so the app renders a clean collapsible block. |
 | **Channels/threads = `chat_id`/`thread_id`** | The gateway's `SessionSource` already models this; cron delivery already targets `platform:chat_id:thread_id`. We map app concepts onto existing primitives. |
 | **SQLite outbox + sync cursor** | Offline delivery + reconnect catch-up without re-reading full history. |
-| **Compose Multiplatform** | Desktop is "the Android app, tweaked" → share protocol/state/UI; only platform services + layout differ. |
+| **Compose Multiplatform** | Desktop is "the Iris app, tweaked" → share protocol/state/UI; only platform services + layout differ. |
 
 ## Data flow (one turn)
 
 1. App sends `message.send {text}` (or `/cmd`).
 2. Plugin builds a `MessageEvent` (+ `media_urls` if attachments) →
-   `AndroidAdapter.handle_message(event)`.
+   `IrisAdapter.handle_message(event)`.
 3. Gateway resolves the session (`chat_id`/`thread_id`), runs the agent.
 4. Agent streams: `stream_delta_callback` → `GatewayStreamConsumer` →
    `adapter.send()` (first) / `adapter.edit_message()` (updates) →

docs/02-monorepo.md

@@ -13,10 +13,10 @@ iris_x_hermes/
 │
 ├── hermes-agent/               # ⚠️ READ-ONLY REFERENCE — NEVER PUSHED (git-ignored)
 │
-├── gateway-plugin/             # ① Python plugin → installed to ~/.hermes/plugins/android
+├── gateway-plugin/             # ① Python plugin → installed to ~/.hermes/plugins/iris
 │   ├── plugin.yaml             #    manifest (kind: platform, env vars, home channel)
 │   ├── __init__.py
-│   ├── adapter.py              #    AndroidAdapter(BasePlatformAdapter) + register(ctx)
+│   ├── adapter.py              #    IrisAdapter(BasePlatformAdapter) + register(ctx)
 │   ├── ws_server.py            #    websockets server, connection registry, framing
 │   ├── protocol.py             #    frame schemas (source of truth, mirrored in Kotlin)
 │   ├── media.py                #    inbound cache + outbound chunked streaming
@@ -50,9 +50,10 @@ iris_x_hermes/
 ## Module responsibilities
 
 ### `gateway-plugin/` (Python)
-- **`plugin.yaml`** — manifest: `name: android-platform`, `kind: platform`,
+
+- **`plugin.yaml`** — manifest: `name: iris-platform`, `kind: platform`,
   `requires_env` / `optional_env` (surfaced in `hermes config`/setup).
-- **`adapter.py`** — `AndroidAdapter(BasePlatformAdapter)` + `register(ctx)`.
+- **`adapter.py`** — `IrisAdapter(BasePlatformAdapter)` + `register(ctx)`.
   The heart of the plugin. See `03-gateway-plugin.md`.
 - **`ws_server.py`** — `websockets` server, per-device connection registry,
   frame encode/decode, heartbeat, broadcast routing to all connected devices.
@@ -61,13 +62,14 @@ iris_x_hermes/
 - **`media.py`** — inbound chunked upload → `cache_*_from_bytes`; outbound
   `media.offer`/`media.pull` chunked streaming.
 - **`outbox.py`** — SQLite outbox per `chat_id` + monotonic sync cursor.
-- **`push.py`** — `PushBackend` interface; `FcmBackend` (httpx, FCM HTTP v1) and
-  `NtfyBackend` (reuses hermes ntfy publish). Selected by `ANDROID_PUSH_BACKEND`.
+- **`push.py`** — `PushBackend` interface; `NtfyBackend` (default) and
+  `FcmBackend` (httpx, FCM HTTP v1). Selected by `IRIS_PUSH_BACKEND`.
 - **`pairing.py`** — token generation/verification (constant-time), device
   registry (SQLite), QR payload.
 - **`search.py`** — FTS5 query bridge over the hermes session store.
 
 ### `app/shared` (Kotlin KMP)
+
 - **`commonMain`** — protocol models (kotlinx-serialization), `GatewayClient`
   (OkHttp WS), repositories (Room), ViewModels (StateFlow), and the Compose UI
   (design system, screens). ~80% of app code.
@@ -77,13 +79,14 @@ iris_x_hermes/
   window management, `MediaPlayer` actual.
 
 ### `app/androidApp` / `app/desktopApp`
+
 Thin shells: `Application`/`MainActivity` (Android) and `main()`/window
 (Desktop). They compose the `shared` UI and inject platform services.
 
 ## Build systems
 
 - **Python plugin:** no build step (pure Python, stdlib + hermes core deps).
-  Installed by copying/symlinking into `~/.hermes/plugins/android`. Tested with
+  Installed by copying/symlinking into `~/.hermes/plugins/iris`. Tested with
   hermes's `scripts/run_tests.sh`.
 - **Kotlin/CMP:** Gradle (Kotlin DSL) with the Compose Multiplatform plugin.
   `./gradlew :androidApp:installDebug`, `./gradlew :desktopApp:run`,
@@ -124,7 +127,7 @@ keystore.jks
 
 ## Install layout (runtime)
 
-- **Plugin:** `~/.hermes/plugins/android/` ← copy of `gateway-plugin/`
+- **Plugin:** `~/.hermes/plugins/iris/` ← copy of `gateway-plugin/`
   (or a symlink for dev). Discovered by hermes's `PluginManager`.
 - **App (dev):** installed on-device via `./gradlew :androidApp:installDebug`.
 - **App (desktop, dev):** `./gradlew :desktopApp:run`.

docs/03-gateway-plugin.md

@@ -1,6 +1,6 @@
 # 03 — Gateway Plugin (Python)
 
-The plugin is a **community-style hermes platform plugin** named `android`.
+The plugin is a **community-style hermes platform plugin** named `iris`.
 It follows the "Plugin Path" in `hermes-agent/gateway/platforms/ADDING_A_PLATFORM.md`
 and the canonical example `hermes-agent/plugins/platforms/irc/adapter.py`.
 **Zero hermes-core changes. Zero new Python dependencies** (`websockets` and
@@ -11,8 +11,8 @@ and the canonical example `hermes-agent/plugins/platforms/irc/adapter.py`.
 ## 3.1 `plugin.yaml` (manifest)
 
 ```yaml
-name: android-platform
-label: Android
+name: iris-platform
+label: Iris
 kind: platform
 version: 0.1.0
 description: >
@@ -22,63 +22,63 @@ description: >
   channels/threads, media, FTS5 search, and FCM/ntfy push.
 author: <you>
 requires_env:
-  - name: ANDROID_TOKEN
+  - name: IRIS_TOKEN
     description: "Shared pairing token the app presents on connect"
-    prompt: "Android pairing token"
+    prompt: "Iris pairing token"
     password: true
 optional_env:
-  - name: ANDROID_WS_HOST
-    description: "WS bind host (default 127.0.0.1; use 0.0.0.0 for LAN)"
-    prompt: "WS host"
+  - name: IRIS_HTTP_HOST
+    description: "HTTP bind host (default 127.0.0.1; use 0.0.0.0 for LAN)"
+    prompt: "HTTP host"
     password: false
-  - name: ANDROID_WS_PORT
-    description: "WS port (default 8790)"
-    prompt: "WS port"
+  - name: IRIS_HTTP_PORT
+    description: "HTTP port (default 8791)"
+    prompt: "HTTP port"
     password: false
-  - name: ANDROID_HOME_CHANNEL
-    description: "Default chat id for cron/notification delivery (default android:default)"
+  - name: IRIS_HOME_CHANNEL
+    description: "Default chat id for cron/notification delivery (default default)"
     prompt: "Home channel"
     password: false
-  - name: ANDROID_ALLOWED_USERS
+  - name: IRIS_ALLOWED_USERS
     description: "Comma-separated allowed device_ids (empty = token-only auth)"
     prompt: "Allowed device ids"
     password: false
-  - name: ANDROID_ALLOW_ALL_USERS
+  - name: IRIS_ALLOW_ALL_USERS
     description: "Allow any paired device (dev only)"
     prompt: "Allow all devices? (true/false)"
     password: false
-  - name: ANDROID_PUSH_BACKEND
-    description: "Push backend: fcm (default) or ntfy"
+  - name: IRIS_PUSH_BACKEND
+    description: "Push backend: ntfy (default, keeps metadata off Google) or fcm"
     prompt: "Push backend"
     password: false
-  - name: ANDROID_FCM_SERVICE_ACCOUNT
+  - name: IRIS_FCM_SERVICE_ACCOUNT
     description: "Path to Firebase service-account JSON (FCM HTTP v1)"
     prompt: "FCM service account path"
     password: true
-  - name: ANDROID_FCM_SERVER_KEY
+  - name: IRIS_FCM_SERVER_KEY
     description: "Legacy FCM server key (fallback if no service account)"
     prompt: "FCM server key"
     password: true
   - name: NTFY_TOPIC
-    description: "ntfy topic for push (when ANDROID_PUSH_BACKEND=ntfy)"
+    description: "ntfy topic for push (when IRIS_PUSH_BACKEND=ntfy)"
     prompt: "ntfy topic"
     password: false
   - name: NTFY_SERVER_URL
     description: "ntfy server URL (default https://ntfy.sh)"
     prompt: "ntfy server URL"
     password: false
-  - name: ANDROID_WS_CERT
-    description: "TLS cert path for WSS (optional)"
-    prompt: "WSS cert"
+  - name: IRIS_HTTP_CERT
+    description: "TLS cert path for HTTPS (optional)"
+    prompt: "HTTPS cert"
     password: false
-  - name: ANDROID_WS_KEY
-    description: "TLS key path for WSS (optional)"
-    prompt: "WSS key"
+  - name: IRIS_HTTP_KEY
+    description: "TLS key path for HTTPS (optional)"
+    prompt: "HTTPS key"
     password: false
 ```
 
 Behavioral (non-secret) settings live in `config.yaml` under
-`gateway.platforms.android.extra` (host, port, home_channel, outbox retention,
+`gateway.platforms.iris.extra` (host, port, home_channel, outbox retention,
 max upload bytes, tls). Secrets live in `.env`. (hermes policy: `.env` = secrets
 only.)
 
@@ -87,21 +87,21 @@ only.)
 ```python
 def register(ctx):
     ctx.register_platform(
-        name="android",
-        label="Android",
-        adapter_factory=lambda cfg: AndroidAdapter(cfg),
+        name="iris",
+        label="Iris",
+        adapter_factory=lambda cfg: IrisAdapter(cfg),
         check_fn=check_requirements,          # passive: websockets importable + token set
         validate_config=validate_config,      # host/port/token present
         is_connected=is_connected,
-        required_env=["ANDROID_TOKEN"],
+        required_env=["IRIS_TOKEN"],
         install_hint="No extra packages needed (websockets + httpx are core deps)",
         setup_fn=interactive_setup,           # hermes gateway setup flow
         env_enablement_fn=_env_enablement,    # seed extra + home_channel from env
-        cron_deliver_env_var="ANDROID_HOME_CHANNEL",
+        cron_deliver_env_var="IRIS_HOME_CHANNEL",
         standalone_sender_fn=_standalone_send,  # best-effort out-of-proc cron (stretch)
-        parse_target_ref_fn=_parse_target_ref,  # "android:<chat>[:<thread>]"
-        allowed_users_env="ANDROID_ALLOWED_USERS",
-        allow_all_env="ANDROID_ALLOW_ALL_USERS",
+        parse_target_ref_fn=_parse_target_ref,  # "iris:<chat>[:<thread>]"
+        allowed_users_env="IRIS_ALLOWED_USERS",
+        allow_all_env="IRIS_ALLOW_ALL_USERS",
         max_message_length=0,                 # 0 = no limit (WS has none)
         emoji="📱",
         pii_safe=False,
@@ -123,26 +123,29 @@ Field reference (all from `PlatformEntry`, `gateway/platform_registry.py:63`):
 `ensure_deps_fn`.
 
 - **`check_requirements()`** — passive probe: `import websockets` succeeds and
-  `ANDROID_TOKEN` is set. Never installs.
+  `IRIS_TOKEN` is set. Never installs.
 - **`_env_enablement()`** — returns a dict seeding `PlatformConfig.extra`
   (host/port/home_channel/push_backend) + a `home_channel` key
-  `{"chat_id": "android:default", "name": "Default"}` so `hermes gateway status`
+  `{"chat_id": "default", "name": "Default"}` so `hermes gateway status`
   and cron home-channel resolution work without instantiating the adapter.
-- **`_parse_target_ref(ref)`** — if `ref` starts with `android:`, return
-  `(chat_id, thread_id)` parsed from `android:<chat>[:<thread>]`; else `None`.
+- **`_parse_target_ref(ref)`** — the core strips the platform prefix first, so
+  `ref` is the direct chat id (e.g. `chan_7`, `default`) with an optional
+  `:t_<n>` thread suffix; friendly names resolve via the channel directory.
+  Returns `(chat_id, thread_id)` or `None`.
 - **`interactive_setup()`** — prompts for token (or generates one), host/port,
   push backend + credentials, prints a QR code (pairing) and the app URL.
 
-## 3.3 `AndroidAdapter(BasePlatformAdapter)`
+## 3.3 `IrisAdapter(BasePlatformAdapter)`
 
-Constructor: `super().__init__(config=config, platform=Platform("android"))`.
+Constructor: `super().__init__(config=config, platform=Platform("iris"))`.
 Reads `config.extra` (env overrides win). Initializes: WS server (not started
 until `connect()`), connection registry, outbox (SQLite under
-`get_hermes_home()/"android"`), push backend, pairing store, channel directory.
+`get_hermes_home()/"iris"`), push backend, pairing store, channel directory.
 
 ### Lifecycle
+
 - **`connect(*, is_reconnect=False) -> bool`**
-  - Acquire scoped lock (`gateway.status.acquire_scoped_lock("android", key)`)
+  - Acquire scoped lock (`gateway.status.acquire_scoped_lock("iris", key)`)
     so two profiles can't bind the same port/identity.
   - Start the `websockets` server on `host:port` (TLS if cert/key set).
   - `_mark_connected()`; return True.
@@ -150,6 +153,7 @@ until `connect()`), connection registry, outbox (SQLite under
   - Stop server, close all device sockets, release lock, `_mark_disconnected()`.
 
 ### Inbound (app → agent)
+
 - WS `message.send {text, reply_to?, media_refs?}` → build `SessionSource` via
   `self.build_source(chat_id, chat_name, chat_type, user_id, user_name,
   thread_id)` → build `MessageEvent(text=…, message_type=TEXT, source=…,
@@ -171,6 +175,7 @@ until `connect()`), connection registry, outbox (SQLite under
 - `sync {cursor}` → `outbox.py` → replay frames since cursor.
 
 ### Outbound (agent → app)
+
 - **`send(chat_id, content, reply_to=None, metadata=None) -> SendResult`**
   - Split reasoning prefix (see `05-streaming.md`) → `reasoning` field.
   - If **any** device is connected: broadcast `message` frame to all.
@@ -195,7 +200,9 @@ until `connect()`), connection registry, outbox (SQLite under
   channel directory, return it (used by cron "continuable" threads).
 
 ### Streaming hooks
+
 The main gateway drives delivery through the **legacy callback path**:
+
 - `stream_delta_callback` → `GatewayStreamConsumer` → `send()` (first) +
   `edit_message()` (updates) → `message.start` / `message.update`.
 - `tool_progress_callback` → progress queue → `send_progress_messages` →
@@ -208,29 +215,28 @@ The adapter tracks per-chat **turn state** (in-turn, current streaming
 `message` vs `tool.*` vs `commentary`. The exact classification markers are
 verified empirically in M2 (see `13-testing.md`).
 
-## 3.4 WebSocket server (`ws_server.py`)
+## 3.4 HTTP server (`http_server.py`)
 
-- Library: **`websockets`** (core dep, v15). `websockets.serve(handler, host,
-  port, ssl=ctx)`.
-- **Handler** per connection:
-  1. Await first frame; must be `hello {token, device_id, device_name, caps,
-     fcm_token?}`. Verify token (constant-time) + allowlist. On failure: send
-     `error {code:"auth"}` and close.
-  2. On success: register in connection registry
-     (`device_id → {ws, caps, fcm_token}`), send
-     `hello.ack {server_caps, sync_cursor, channels[]}`.
-  3. Loop: decode frames, dispatch to adapter inbound handlers.
-  4. On close: deregister; if no devices remain, ensure pending outbox
-     frames have push fired.
+- Library: **stdlib `http.server`** (`ThreadingHTTPServer` +
+  `BaseHTTPRequestHandler`) in a daemon thread; bridges into the gateway's
+  asyncio loop via `asyncio.run_coroutine_threadsafe`. Optional TLS via
+  `ssl.SSLContext` (`IRIS_HTTP_CERT`/`IRIS_HTTP_KEY`). Full design:
+  `19-http-fallback-transport.md`.
+- **Auth:** `Authorization: Bearer <token>` (constant-time `verify_token`)
+  - device allowlist via `X-Iris-Device`; `401` on failure.
+- **Endpoints:** `GET /v1/health` (unauthenticated liveness),
+  `POST /v1/frame` (any JSON frame the protocol accepts),
+  `GET /v1/events?cursor=N` (SSE: outbox catch-up + live frames),
+  `GET /v1/poll?cursor=N` (long-poll fallback), `POST /v1/media` +
+  `GET /v1/media/{id}` (media upload/pull).
 - **Routing:** `emit(chat_id, frame)` → broadcast to **all** connected
   devices (no per-chat subscribe; single-user model). Global frames
   (`channel.*`, `status`) also broadcast to all.
-- **Heartbeat:** WS ping/pong + app-level `ping`/`pong`; dead peers reaped.
-- **Backpressure:** per-connection send queue with a bounded buffer; drop
-  `message.update` (coalesce to latest) under pressure, never drop
-  `message`/`tool.end`/`notification`.
+- **Limits:** 64 KiB request body cap, per-device token-bucket rate limit
+  (20/s, burst 40) → `429`; media uploads bounded by the per-upload total
+  cap. No CORS (app clients only).
 
-## 3.5 State & storage (all under `get_hermes_home()/"android"`)
+## 3.5 State & storage (all under `get_hermes_home()/"iris"`)
 
 > Use `get_hermes_home()` from `hermes_constants` for **all** paths (profile-safe).
 > Never hardcode `~/.hermes`.
@@ -245,19 +251,20 @@ verified empirically in M2 (see `13-testing.md`).
 
 ## 3.6 Config resolution
 
-- **Secrets (`.env`):** `ANDROID_TOKEN`, `ANDROID_FCM_SERVICE_ACCOUNT`,
-  `ANDROID_FCM_SERVER_KEY`, `ANDROID_WS_CERT/KEY`, `NTFY_TOPIC` (if secret).
-- **Behavioral (`config.yaml` → `gateway.platforms.android.extra`):** `host`,
-  `port`, `home_channel`, `allowed_users`, `push_backend`, `outbox_retention_hours`,
-  `max_upload_bytes`, `tls`.
+- **Secrets (`.env`):** `IRIS_TOKEN`, `IRIS_FCM_SERVICE_ACCOUNT`,
+  `IRIS_FCM_SERVER_KEY`, `IRIS_HTTP_CERT/KEY`, `NTFY_TOPIC` (if secret).
+- **Behavioral (`config.yaml` → `gateway.platforms.iris.extra`):** `host`,
+  `http_port`, `home_channel`, `allowed_users`, `push_backend`, `outbox_retention_hours`,
+  `max_upload_bytes`, `http_cert`/`http_key`.
 - Env vars override `config.yaml` (hermes convention). Read secrets with the
   scope-aware `_get_scoped_secret` pattern (see `plugins/platforms/irc/adapter.py:42`)
   so multiplexed profiles don't leak each other's tokens.
 
 ## 3.7 Failure & lifecycle safety
 
-- WS server bind failure → `_set_fatal_error("bind_failed", …, retryable=True)`.
-- All outbound sends are best-effort; a dead socket latches and the frame falls
-  to the outbox.
-- `disconnect()` cancels the server task and closes sockets cleanly.
+- HTTP server bind failure → non-fatal: log a warning, disable the HTTP leg,
+  show it in the inspector (the plugin keeps working for other platforms).
+- All outbound sends are best-effort; a dead stream latches and the frame
+  falls to the outbox.
+- `disconnect()` stops the HTTP server and closes streams cleanly.
 - Token/PII redaction in all logs (hermes PII policy).

docs/04-wire-protocol.md

@@ -12,7 +12,7 @@ Every frame:
   "v": 1,
   "id": 42,                 // optional; present on requests + their responses
   "type": "message",        // frame type (below)
-  "chat_id": "android:default",   // optional; scope for chat-scoped frames
+  "chat_id": "default",   // optional; scope for chat-scoped frames
   "thread_id": "t_123",           // optional
   "payload": { }             // type-specific object
 }
@@ -40,24 +40,40 @@ Pairing succeeded.
 ```json
 {"type":"hello.ack","payload":{
   "server_caps":{"streaming":true,"reasoning":true,"tools":true,"media":true,
-                 "search":true,"push":"fcm","pickers":true},
+                 "search":true,"push":"fcm","pickers":true,
+                 "app_version":"0.1.2"},
   "sync_cursor":1042,
   "last_pushed_cursor":1040,
-  "channels":[{"chat_id":"android:default","name":"Default","kind":"default","is_default":true}]
+  "device_token":"9f2c…(64 hex)",
+  "channels":[{"chat_id":"default","name":"Default","kind":"default","is_default":true}]
 }}
 ```
 
+`server_caps.app_version` is the gateway plugin's release version (the
+repo-root `VERSION` file, `gateway-plugin/version.py`). The app shows it in
+Settings → About (next to its own version) and hints when the app and
+gateway versions differ.
+The app reports its own version on the SSE open via the
+`X-Iris-App-Version` header (stored in the device registry's `caps` JSON,
+visible in `~/.hermes/.../devices.db`).
+
 `last_pushed_cursor` is the highest outbox cursor already delivered to THIS
 device via the push backend (0 = never). The app skips system notifications
 for sync-replayed frames with `cursor <= last_pushed_cursor` — they already
 woke the device via push (dedupe, `08-push.md` §8.7).
 
+`device_token` is the per-device token minted at pairing (docs/09 §9.3):
+the app stores it and presents it in the `Authorization` header INSTEAD of
+the shared `IRIS_TOKEN` from then on, so the gateway can revoke one device
+without affecting the others. Empty when the gateway didn't issue one
+(legacy).
+
 ### `message`
 
 A final / standalone message.
 
 ```json
-{"type":"message","chat_id":"android:default","thread_id":null,
+{"type":"message","chat_id":"default","thread_id":null,
  "payload":{
    "message_id":"m_9001","role":"assistant",
    "text":"Here is the answer…",
@@ -107,7 +123,7 @@ them drop the message(s) from their cache. Also outboxed, so a device that was
 offline learns of the deletion on its next `sync`.
 
 ```json
-{"type":"message.deleted","id":30,"chat_id":"android:default","thread_id":null,
+{"type":"message.deleted","id":30,"chat_id":"default","thread_id":null,
  "payload":{"message_ids":["m_9001","m_9002"]}}
 ```
 
@@ -126,7 +142,7 @@ truncated / nothing).
 
 ```json
 {"type":"tool.start","chat_id":"…","payload":{
-   "index":3,"name":"terminal","preview":"pytest -q","args":{"command":"pytest -q"}}}
+   "index":3,"name":"terminal","preview":"pytest -q","args":{"command":"pytest -q"},"emoji":"💻"}}
 {"type":"tool.progress","chat_id":"…","payload":{"index":3,"name":"terminal","note":"running…"}}
 {"type":"tool.end","chat_id":"…","payload":{"index":3,"name":"terminal","ok":true,"duration":12.4,
    "output_preview":"12 passed"}}
@@ -135,6 +151,36 @@ truncated / nothing).
 `args` may be large; the app truncates per its setting. `output_preview` is a
 short tail (full output is not streamed — it lives in agent history).
 
+`emoji` is a cosmetic per-tool glyph resolved server-side via hermes'
+`get_tool_emoji` (active-skin overrides, then the tool registry's per-tool
+`emoji` — e.g. `read_file` 📖, `write_file` ✍️, `terminal` 💻). Omitted when
+the tool is unknown, so the app falls back to its own default glyph.
+
+### `todo.update`
+
+The agent's **full current todo list** for a chat/thread lane (last-write-wins).
+Emitted whenever the `todo` tool completes — the tool *result* is the
+authoritative list, which also covers `merge` writes (whose args carry only
+the changed items) and read-only calls — and, as a **snapshot**, right after
+`hello` when a device opens its event stream.
+
+```json
+{"type":"todo.update","chat_id":"default","thread_id":null,"payload":{
+   "todos":[
+     {"id":"1","content":"Scaffold the module","status":"completed"},
+     {"id":"2","content":"Wire the store","status":"in_progress"},
+     {"id":"3","content":"Add tests","status":"pending"}
+   ]}}
+```
+
+`status` is one of `pending | in_progress | completed | cancelled`. The frame
+is **ephemeral**: it is never outboxed, so a reconnecting device learns the
+current list from the snapshot (not a replay), and a gateway restart drops it
+(the agent re-emits on the next `todo` call). The app renders it as a compact
+scrollable strip above the composer (max 3 lines; auto-scrolls to the item
+whose status just changed) and hides it once the list is empty or fully
+resolved.
+
 ### `typing` / `typing.stop`
 
 ```json
@@ -156,6 +202,16 @@ In-app banner (foreground) and/or push mirror (background).
 
 Interactive prompts. App renders a native picker; answers via `picker.select`.
 
+`picker.choice` is implemented (the generic finite-choice menu used by
+`/reasoning`, `/fast`, and any future finite-choice slash command — hermes
+calls the adapter's `send_choice_picker` when the platform supports it).
+The server runs the command's selection callback on `picker.select` and
+delivers its reply as a normal `message` in the picker's chat. The frame is
+outboxed (a reconnecting device re-renders a still-pending picker); pending
+state is in-memory only, so a gateway restart expires it (a stale
+`picker.select` is a no-op). With no live device the adapter reports failure
+and hermes falls back to the text status card.
+
 ```json
 {"type":"picker.model","chat_id":"…","payload":{
    "picker_id":"pm_1","current_model":"qwen3-27b","current_provider":"local",
@@ -171,7 +227,7 @@ Channel directory updates. **Broadcast to all connected devices** (no explicit
 subscribe; the server pushes to every open WS).
 
 ```json
-{"type":"channel.created","payload":{"chat_id":"android:chan_7","name":"Cron Reports",
+{"type":"channel.created","payload":{"chat_id":"chan_7","name":"Cron Reports",
    "kind":"channel","parent_chat_id":null}}
 ```
 
@@ -185,7 +241,7 @@ title.
 Response to a `history` request. Returns a page of messages for a chat/thread.
 
 ```json
-{"type":"history","id":20,"chat_id":"android:default","thread_id":null,
+{"type":"history","id":20,"chat_id":"default","thread_id":null,
  "payload":{
    "messages":[
      {"message_id":"m_8990","role":"user","text":"Hi","ts":1723990000000},
@@ -239,9 +295,9 @@ Response to a `commands.complete` request. Autocomplete matches for a typed pref
 Agent lifecycle for a chat/thread. App shows a "thinking…" indicator on `busy`.
 
 ```json
-{"type":"agent.busy","chat_id":"android:default","thread_id":null,
+{"type":"agent.busy","chat_id":"default","thread_id":null,
  "payload":{"reason":"processing"}}
-{"type":"agent.idle","chat_id":"android:default","thread_id":null,"payload":{}}
+{"type":"agent.idle","chat_id":"default","thread_id":null,"payload":{}}
 ```
 
 `reason` ∈ `processing | tool | waiting_input | cron`.
@@ -251,7 +307,7 @@ Agent lifecycle for a chat/thread. App shows a "thinking…" indicator on `busy`
 ```json
 {"type":"search.results","id":7,"payload":{
    "query":"deploy","scope":"all","hits":[
-     {"message_id":"m_123","chat_id":"android:chan_7","thread_id":null,
+     {"message_id":"m_123","chat_id":"chan_7","thread_id":null,
       "role":"assistant","snippet":"…deploy the service…","ts":1723900000000}]}}
 ```
 
@@ -270,7 +326,7 @@ The gateway acknowledges that the agent has received and started processing
 the user's message. The app uses it to show ✓✓ on user bubbles.
 
 ```json
-{"type":"read.receipt","chat_id":"android:default","payload":{"message_id":"m_9001"}}
+{"type":"read.receipt","chat_id":"default","payload":{"message_id":"m_9001"}}
 ```
 
 Emitted to the originating connection when a `message.send` is accepted for
@@ -280,7 +336,13 @@ messages only.
 ### `status`
 
 Gateway health state. Broadcast to all connected clients at startup
-(`state: "online"`); `restarting` / `degraded` are reserved for future use.
+(`state: "online"`) and to late joiners on `hello.ack`. The gateway also
+broadcasts `state: "restarting"` on its shutdown path (restart/stop), right
+before closing the sockets — the app posts the "Gateway restarting" chat
+notice immediately on that frame (the socket can take up to the ~20 s ping
+timeout to actually drop, so the notice must not wait for the disconnect);
+a plain network drop shows just the reconnect banner. `degraded` is reserved
+for future use.
 
 ```json
 {"type":"status","payload":{"state":"online"}}
@@ -308,7 +370,7 @@ First frame; auth + caps.
 
 ```json
 {"type":"hello","payload":{
-   "token":"<ANDROID_TOKEN>","device_id":"dev_a1b2","device_name":"MIX 2S",
+   "token":"<IRIS_TOKEN>","device_id":"dev_a1b2","device_name":"MIX 2S",
    "caps":{"min_protocol":1,"media":true,"push":"fcm"},
    "fcm_token":"<FCM token>","ntfy_topic":"<topic, if ntfy>"}}
 ```
@@ -318,7 +380,7 @@ First frame; auth + caps.
 Send text (or a `/slash-command`).
 
 ```json
-{"type":"message.send","id":10,"chat_id":"android:default","thread_id":null,
+{"type":"message.send","id":10,"chat_id":"default","thread_id":null,
  "payload":{"text":"/model qwen3-27b","reply_to":"m_9001","media_refs":["mu_1"],
             "auto_thread":false}}
 ```
@@ -372,8 +434,8 @@ Answer an interactive picker.
 
 ```json
 {"type":"channel.create","id":14,"payload":{"name":"Cron Reports","kind":"channel"}}
-{"type":"channel.rename","id":15,"chat_id":"android:chan_7","payload":{"name":"Reports"}}
-{"type":"channel.set_default","id":16,"chat_id":"android:chan_7","payload":{}}
+{"type":"channel.rename","id":15,"chat_id":"chan_7","payload":{"name":"Reports"}}
+{"type":"channel.set_default","id":16,"chat_id":"chan_7","payload":{}}
 ```
 
 `channel.delete` is a **hard delete**: the channel/thread row is removed from
@@ -385,7 +447,7 @@ removes its threads. The default channel cannot be deleted.
 
 ```json
 {"type":"search","id":17,"payload":{"query":"deploy","scope":"all"}}
-{"type":"search","id":18,"payload":{"query":"deploy","scope":"chat","chat_id":"android:chan_7","thread_id":null}}
+{"type":"search","id":18,"payload":{"query":"deploy","scope":"chat","chat_id":"chan_7","thread_id":null}}
 ```
 
 `scope` ∈ `all | chat`.
@@ -397,7 +459,7 @@ broadcasts to other devices (for multi-device ✓✓ sync). The app uses it to
 mark messages as read locally (✓✓ on user bubbles).
 
 ```json
-{"type":"read.receipt","payload":{"chat_id":"android:default","message_id":"m_9001"}}
+{"type":"read.receipt","payload":{"chat_id":"default","message_id":"m_9001"}}
 ```
 
 ### `history`
@@ -405,7 +467,7 @@ mark messages as read locally (✓✓ on user bubbles).
 Load a page of messages for a chat/thread (initial open, scroll-up pagination).
 
 ```json
-{"type":"history","id":20,"chat_id":"android:default","thread_id":null,
+{"type":"history","id":20,"chat_id":"default","thread_id":null,
  "payload":{"before_message_id":"m_8990","limit":50}}
 ```
 
@@ -422,7 +484,7 @@ message already gone (pruned by retention) still yields a `message.deleted`
 broadcast so live caches drop it.
 
 ```json
-{"type":"message.delete","id":30,"chat_id":"android:default","thread_id":null,
+{"type":"message.delete","id":30,"chat_id":"default","thread_id":null,
  "payload":{"message_ids":["m_9001","m_9002"]}}
 ```
 
@@ -447,7 +509,7 @@ Autocomplete for a typed `/prefix`.
 Stop the current agent turn (abort generation / tool execution).
 
 ```json
-{"type":"agent.stop","id":23,"chat_id":"android:default","thread_id":null,"payload":{}}
+{"type":"agent.stop","id":23,"chat_id":"default","thread_id":null,"payload":{}}
 ```
 
 ### `agent.steer`
@@ -455,7 +517,7 @@ Stop the current agent turn (abort generation / tool execution).
 Inject a steering message mid-turn (redirects the agent without a new turn).
 
 ```json
-{"type":"agent.steer","id":24,"chat_id":"android:default","thread_id":null,
+{"type":"agent.steer","id":24,"chat_id":"default","thread_id":null,
  "payload":{"text":"Actually, focus on the error case."}}
 ```
 

docs/05-streaming.md

@@ -12,11 +12,13 @@ produced by the gateway and rendered by the app.
 **Gateway side.** The agent's `stream_delta_callback` feeds a
 `GatewayStreamConsumer` (`gateway/stream_consumer.py:156`). The consumer
 accumulates text and, at intervals / thresholds, calls:
+
 - `adapter.send(chat_id, text)` — first time a bubble is created.
 - `adapter.edit_message(chat_id, message_id, text)` — subsequent updates
   (each carries the **full** accumulated text).
 
 **Adapter → frames.**
+
 - First `send()` of a turn segment → `message.start {message_id, role}`.
 - Each `edit_message()` → `message.update {message_id, text}` (full text).
 - Segment/turn finalization → `message.stop {message_id, final_text, reasoning?,
@@ -27,8 +29,45 @@ replace the bubble text (cheap: it's a full snapshot). On `message.stop`,
 finalize (attach reasoning/model/tokens footer, stop the cursor). Auto-scroll
 while the user is at the bottom.
 
+**Smooth streaming (app-side rendering).** Re-parsing + re-laying-out the
+whole bubble on every update made streamed text unreadable (raw-markdown
+flashes, constant reflow). `MarkdownText` therefore renders streaming bubbles
+incrementally:
+
+- **Reveal (typewriter):** the latest full snapshot is revealed at a steady
+  rate instead of jumping per gateway update. The rate is user-adjustable:
+  Settings → "Streaming speed" (`streamSmoothness`, 0.2–0.8 s between visible
+  updates, lower = faster; `streamCharsPerSecond` maps it to chars/s:
+  `60 / smoothness`, so 0.2 → 300 chars/s, 0.8 → 75 chars/s). Applied on the
+  fly; a backlog exceeding ~2 s of reveal time is revealed at once (fast
+  model / reconnect catch-up).
+- **Wait for the reveal:** the streaming renderer stays active until the
+  reveal catches up, even after `message.stop` — a fast model that dumps the
+  whole text in one or two frames still plays out the typewriter instead of
+  jumping to the full message. Only then does the bubble switch to the static
+  renderer (which also enables the HTML artifact card).
+- **Incremental parse:** the revealed prefix is fed as append chunks
+  (`appendChunk`) into the library's `StreamingMarkdownState`
+  (`rememberStreamingMarkdownState`, mikepenz 0.44.0) — an append-only parser
+  that re-parses only the unstable tail. Settled blocks keep AST identity, so
+  Compose never re-lays them out; only the tail re-renders per tick. A
+  non-extension snapshot (rewrite) recreates the parser state and re-seeds it.
+- **Prefix-preserving transform:** `preserveNewlinesAsHardBreaksStreaming()`
+  is like `preserveNewlinesAsHardBreaks()` but skips the still-incomplete last
+  line, so the transform of a prefix is always a prefix of the transform of
+  the whole (required for pure-append diffs). The static path keeps the
+  original transform plus `retainState = true` (last formatted output stays
+  visible during re-parses — no raw flash).
+- **Cursor:** the ▉ is appended to the last text leaf by the annotator (not to
+  the parse input, which would break the append diff).
+
+The gateway cadence (`edit_interval` / `buffer_threshold`, default 0.8 s /
+24 chars) is unchanged — smoothing happens entirely client-side, so it works
+with any gateway and per device.
+
 **Streaming on/off.** Two levels:
-- **Gateway side:** hermes `display.platforms.android.streaming` (default
+
+- **Gateway side:** hermes `display.platforms.iris.streaming` (default
   follows global). When off, the app just gets one final `message` frame.
 - **App side (per device):** Settings → "Streaming" toggle (default on). When
   off, the app ignores `message.start`/`message.update` frames and
@@ -45,26 +84,30 @@ reference screenshot's "Reasoning:" panel with a copy button).
 **Gateway side.** hermes prepends reasoning to the final response when
 `show_reasoning` is enabled (`gateway/run.py:20089`). The format is stable and
 chosen by `reasoning_style` (`gateway/display_config.py:37`):
+
 - `code` (default): `💭 **Reasoning:**\n```\n<reasoning>\n```\n\n<response>`
 - `blockquote`: `> 💭 **Reasoning:**\n> …\n\n<response>`
 - `subtext`: `-# 💭 Reasoning\n-# …\n\n<response>` (Discord-style)
 
-**Plugin config.** Set for the `android` platform:
+**Plugin config.** Set for the `iris` platform:
+
 ```yaml
 display:
   platforms:
-    android:
+    iris:
       show_reasoning: true
       reasoning_style: code     # we split on the code-fence form
 ```
 
 **Adapter split.** In `send()`, detect the `code`-style prefix and split:
+
 ```
 prefix = "💭 **Reasoning:**\n```\n"
 # find the closing "\n```\n\n" after the prefix
 reasoning = text[len(prefix):close_idx]
 body      = text[close_idx + len("\n```\n\n"):]
 ```
+
 Emit `message {reasoning: <reasoning>, text: <body>, …}`. If no prefix is found
 (reasoning off / no reasoning), emit `message {text: …}` with no `reasoning`.
 
@@ -89,6 +132,7 @@ gateway progress queue → `send_progress_messages` (`gateway/run.py:4603`) →
 
 **Adapter → frames.** The adapter classifies tool activity (via turn-state +
 line format) and emits **structured** frames — not pre-formatted strings:
+
 - `tool.start {index, name, preview, args}` — a tool call began.
 - `tool.progress {index, name, note}` — in-progress update (optional).
 - `tool.end {index, name, ok, duration, output_preview}` — completed.
@@ -99,6 +143,7 @@ short tail; full tool output is **not** streamed (it lives in agent history and
 is reachable via search).
 
 **App side — the verbosity setting** (Settings → "Tool detail"):
+
 - **Everything** — show tool name, full args (collapsible), and output preview.
 - **Truncated** (default) — show `emoji name: "short preview"` one-liner,
   collapsible to expand.

docs/06-channels-cron-search.md

@@ -9,10 +9,10 @@ gateway identity concepts**.
 
 | App concept | hermes primitive | Example |
 | --- | --- | --- |
-| Default chat | home channel `chat_id` | `android:default` |
-| A thread (inside default chat) | `thread_id` under the default `chat_id` | `chat_id=android:default, thread_id=t_12` |
-| A user-created channel | a new `chat_id` | `android:chan_7` |
-| A thread inside a channel | `thread_id` under that `chat_id` | `chat_id=android:chan_7, thread_id=t_31` |
+| Default chat | home channel `chat_id` | `default` |
+| A thread (inside default chat) | `thread_id` under the default `chat_id` | `chat_id=default, thread_id=t_12` |
+| A user-created channel | a new `chat_id` | `chan_7` |
+| A thread inside a channel | `thread_id` under that `chat_id` | `chat_id=chan_7, thread_id=t_31` |
 
 - **`chat_id`** = the conversation lane (a channel or the default chat).
 - **`thread_id`** = an optional sub-lane within a `chat_id` (topic-like).
@@ -23,10 +23,10 @@ gateway identity concepts**.
 ## 6.2 Default chat
 
 - On first connect, the plugin ensures a **default channel** exists:
-  `chat_id = ANDROID_HOME_CHANNEL` (default `android:default`), `kind=default`,
+  `chat_id = IRIS_HOME_CHANNEL` (default `default`), `kind=default`,
   `is_default=true`, name "Default".
 - It is also the **cron home channel** (`cron_deliver_env_var=
-  ANDROID_HOME_CHANNEL`), so `deliver=android` (bare) routes here.
+  IRIS_HOME_CHANNEL`), so `deliver=iris` (bare) routes here.
 - The app opens the default chat on launch.
 
 ## 6.3 Threads (toggle for overview)
@@ -37,7 +37,7 @@ gateway identity concepts**.
   - **Threads OFF** — flat conversation; all messages use `thread_id=null`.
   - **Threads ON** — the app groups the conversation into topic-like lanes.
     Each new "topic" mints a `thread_id` (via `channel.create {kind:thread,
-    parent_chat_id:android:default}` or an implicit thread). The UI shows a
+    parent_chat_id:default}` or an implicit thread). The UI shows a
     topic switcher (like Telegram topics) above the message list.
 - Threads are **app-organized** but **gateway-real**: each `thread_id` is a
   distinct hermes session lane, so context is isolated per thread and cron can
@@ -82,7 +82,7 @@ lane (nothing to title / session-scoped, not conversation starters).
 - **Requirement:** the user creates new channels so **cron job outputs can be
   delegated to them** instead of the default chat.
 - **`channel.create {name, kind:"channel"}`** → plugin mints
-  `chat_id = android:chan_<n>`, stores in directory, broadcasts
+  `chat_id = chan_<n>`, stores in directory, broadcasts
   `channel.created` to all devices. The new channel appears in the channel list.
 - **`channel.rename` / `channel.set_default` / `channel.delete`** manage the
   directory (rename broadcasts `channel.renamed`; delete is a **hard delete**
@@ -104,9 +104,9 @@ lane (nothing to title / session-scoped, not conversation starters).
 - **Cron targeting** (the key payoff): because the plugin registers
   `parse_target_ref_fn` and `cron_deliver_env_var`, cron jobs and the
   `send_message` tool can target any channel/thread:
-  - `deliver="android"` → home (default) channel.
-  - `deliver="android:android:chan_7"` → that channel.
-  - `deliver="android:android:chan_7:t_31"` → that channel's thread.
+  - `deliver="iris"` → home (default) channel.
+  - `deliver="iris:chan_7"` → that channel.
+  - `deliver="iris:chan_7:t_31"` → that channel's thread.
   - In-chat: the agent's `cronjob` tool can be told "deliver to the *Cron
     Reports* channel"; the gateway resolves the name via the channel directory.
 - **In-app affordance:** each channel's menu has "Set as cron target" / shows a
@@ -118,7 +118,7 @@ lane (nothing to title / session-scoped, not conversation starters).
 - Cron resolves delivery targets in `cron/scheduler.py:2148`
   (`_resolve_single_delivery_target`). For `platform:chat_id[:thread_id]` it
   calls `tools.send_message_tool.resolve_send_target`, which uses our
-  `parse_target_ref_fn` to parse `android:<chat>[:<thread>]`.
+  `parse_target_ref_fn` to parse `iris:<chat>[:<thread>]`.
 - Delivery then calls the **live adapter's `send(chat_id, text, …)`** (gateway
   running) → our WS `message` frame (or outbox+push if the app is offline).
 - Cron deliveries are framed with a `[Cron delivery: <name>]` header by hermes;

docs/07-media.md

@@ -1,12 +1,15 @@
 # 07 — Media (upload, download, playback)
 
-Media travels **over the WebSocket** as chunked binary frames (decision: no
-separate HTTP server; keeps the plugin to `websockets` only). Both directions
-use the same chunking.
+Media travels **over HTTP** (`POST /v1/media` for upload,
+`GET /v1/media/{id}` for pull; see `19-http-fallback-transport.md` §19.15).
+HTTP is the only transport — the WebSocket leg (chunked binary frames) was
+removed entirely. The contracts below (kinds, sha256, re-sniffing, delivery
+validation) apply to both directions.
 
 ## 7.1 Kinds & MIME
 
 `kind` ∈ `image | audio | video | document | voice`.
+
 - `image` — `image/*` (jpg/png/webp/gif/heic).
 - `audio` — `audio/*` (mp3/m4a/ogg/…) — music.
 - `video` — `video/*` (mp4/webm/mov).
@@ -20,32 +23,38 @@ receipt (don't trust the client) using hermes helpers
 ## 7.2 Inbound (app → agent) — `media.upload`
 
 **Flow:**
-1. App picks a file (SAF) → reads size + MIME.
-2. App sends `media.upload.start {media_ref, kind, mime, size, filename}`.
-3. App streams the file as **binary WS frames** (e.g. 256 KiB chunks).
-4. App sends `media.upload.end {media_ref, sha256}`.
-5. Plugin verifies size ≤ `max_upload_bytes` and sha256, writes to the media
+
+1. App picks a file (SAF) → reads size + MIME, computes sha256.
+2. App `POST /v1/media` with the raw file body; metadata in
+   `X-Iris-Media-*` headers (`media_ref`, `kind`, `mime`, `filename`,
+   `sha256`).
+3. Plugin verifies size ≤ `max_upload_bytes` and sha256, writes to the media
    cache via hermes `cache_*_from_bytes`:
    - image → `cache_image_from_bytes`
    - audio/voice → `cache_audio_from_bytes`
    - video → `cache_video_from_bytes`
    - document → `cache_document_from_bytes`
    → returns a local path.
- 5b. Plugin replies `media.upload.ack {ok, media_ref}` (failures use `error`).
- 6. The path is attached to the next `message.send` via `media_refs`, becoming
+4. Plugin replies `media.upload.ack {ok, media_ref}` (failures use `error`).
+5. The path is attached to the next `message.send` via `media_refs`, becoming
    `MessageEvent.media_urls` + `media_types`
    (`gateway/platforms/base.py:2337`). The agent's vision/audio tools can then
    read the file.
 
-**Limits:** `get_inbound_media_max_bytes()` / `validate_inbound_media_size`
-(`base.py:758/779`) enforce the cap; over-limit → `error {code:"media_too_large"}`.
+**Limits:** two caps apply — the plugin's `max_upload_bytes` (default
+100 MiB) and hermes's `gateway.max_inbound_media_bytes` (default 128 MiB,
+enforced by `get_inbound_media_max_bytes()` / `validate_inbound_media_size`,
+`base.py:758/779`); over-limit → 413 + `error {code:"media_too_large"}`.
+Effective limit is the **min** of both; see §7.7. (The 1 MiB
+`MAX_BODY_BYTES` cap applies to JSON *frame* bodies only, not media uploads.)
 
-**Backpressure:** large uploads use the WS flow control; the plugin reads
-binary frames into a temp file (not memory) to bound RAM.
+**Single-shot:** no chunking/resumability — HTTP carries the body; single-user
+scale makes a one-shot upload sufficient.
 
 ## 7.3 Outbound (agent → app) — `media.offer` / `media.pull`
 
 **Flow:**
+
 1. Agent produces/references media (e.g. generates an image, or replies with a
    `MEDIA:` tag / image URL). hermes base `extract_media` / `extract_images`
    (`base.py:4439/4884`) pull these out and call the adapter's
@@ -54,14 +63,13 @@ binary frames into a temp file (not memory) to bound RAM.
 2. Adapter stages the file in the media cache, mints a `media_id`, and emits
    `media.offer {media_id, kind, mime, size, filename}` (inside/with the
    `message` frame's `media[]`).
-3. App sends `media.pull {media_id}`.
-4. Plugin streams the file as **binary WS frames**; ends with
-   `media.pull.end {ok:true}`.
-5. App writes to its cache dir and hands the path to the player/viewer.
+3. App `GET /v1/media/{id}` — the full file body.
+4. App writes to its cache dir and hands the path to the player/viewer.
 
 **Security:** `validate_media_delivery_path` (`base.py:1684`) + the media
 delivery root/recency/denied-path checks (`base.py:1312-1480`) ensure the plugin
-only serves files hermes is allowed to deliver (no arbitrary file read).
+only serves files hermes is allowed to deliver (no arbitrary file read). The
+delivery-path check is re-run **at pull time**, not just at offer time.
 
 ## 7.4 Live playback (AI-sent music/video)
 
@@ -79,19 +87,59 @@ only serves files hermes is allowed to deliver (no arbitrary file read).
   a desktop backend (see `11-desktop-app.md`): a `libmpv`/`mpv`-backed surface
   or a WebView fallback for video, and a desktop audio player for music.
 
-## 7.5 Chunking parameters
+## 7.5 Integrity
 
-- Chunk size: **256 KiB** (tunable). 
-- Binary frames carry raw bytes only; framing/metadata is in the JSON header +
-  end frames.
-- Reassembly is ordered (WS preserves order); a gap/corruption → abort +
-  `error {code:"internal"}` + retry the whole transfer.
-- `sha256` in `media.upload.end` / a size check on pull verify integrity.
+- Upload: `sha256` (precomputed by the app, sent in `X-Iris-Media-Sha256`)
+  is verified by the plugin; mismatch → `media.upload.ack {ok:false}`.
+- Pull: the app checks the received size against the offered `size`.
+- A failed transfer → retry the whole upload (single-shot, no resume).
 
 ## 7.6 App-side storage
 
-- Cache dir: app-specific external cache (`getExternalCacheDir()/media`).
-- LRU eviction by size (configurable, default 500 MB) so old media doesn't fill
-  the device.
+- Cache dir: app-specific external cache (`getExternalCacheDir()/media`,
+  internal `cacheDir` fallback; desktop: `~/.iris/cache/media`).
+- LRU eviction by size (hardcoded 500 MB, `MediaCacheJvm.kt` `maxBytes`) so old
+  media doesn't fill the device.
 - A `MediaRepository` tracks `{media_id, local_path, kind, size, ts}` in Room so
   bubbles can re-render players after process death.
+
+## 7.7 Size limits & where files live
+
+**Inbound (app → agent) — two caps, effective limit is the min:**
+
+| Cap | Default | Set via | Enforced by |
+| --- | --- | --- | --- |
+| Plugin `max_upload_bytes` | 100 MiB | `gateway.platforms.iris.extra.max_upload_bytes` (config.yaml) | `http_server.py` (Content-Length pre-check) + `media.py` `UploadSession.feed` (mid-stream) → `media_too_large` |
+| Hermes `gateway.max_inbound_media_bytes` | 128 MiB | `gateway.max_inbound_media_bytes` (config.yaml) | `validate_inbound_media_size` inside `cache_*_from_bytes` (`base.py:758/779`) → `media_too_large` |
+
+Both are **pure config** — raising the limit needs no code change in the plugin
+or hermes-agent. The app itself has no upload cap.
+
+**Why the caps exist:** the upload is streamed to a temp file (disk, bounded
+RAM in flight), but at completion the plugin reads the **entire blob into
+memory** (`UploadSession.read_bytes()` → `cache_*_from_bytes` →
+`write_bytes`), so peak RAM ≈ file size per upload. Hermes's cap exists to
+prevent OOM-killing the gateway (comment at `base.py:740-749`).
+
+**Inbound storage (gateway host):**
+
+- In flight: temp file `upl_*` under `~/.hermes/iris/media/tmp` (removed after
+  completion or failure).
+- After caching: hermes media cache — `~/.hermes/cache/images/img_<uuid12><ext>`,
+  `cache/audio/audio_<uuid12><ext>`, `cache/videos/video_<uuid12><ext>`,
+  `cache/documents/doc_<uuid12>_<original filename>`. Video/image/audio lose
+  their original filename; documents keep it.
+- Lifetime: hermes `cleanup_video_cache(max_age_hours=24)` deletes videos older
+  than 24 h.
+
+**Outbound (agent → app) — no size cap at the gateway.** `media.offer` carries
+metadata; `GET /v1/media/{id}` streams the full file in 256 KiB chunks
+regardless of size. The only constraints are the delivery-path re-validation at
+pull time and the 24 h offer TTL (`MediaStore.prune_outbound`).
+
+**The effective outbound limit is set by the app:** the device media cache is
+LRU-capped at 500 MB (§7.6) and `evict()` runs right after each pull completes.
+A single file > 500 MB makes the eviction loop delete everything — *including
+the file it just downloaded*. So files > ~500 MB arrive but are immediately
+discarded. To retain large agent→app files, raise `maxBytes` in
+`MediaCacheJvm.kt` (or exempt files from eviction).

docs/08-push.md

@@ -1,17 +1,54 @@
 # 08 — Push Notifications, Outbox & Sync
 
 The gateway can't reach a sleeping phone directly. Push goes through a cloud
-relay. **Decision: FCM primary, ntfy fallback** (`ANDROID_PUSH_BACKEND`).
+relay. **Decision: ntfy default, FCM optional** (`IRIS_PUSH_BACKEND`).
+Privacy: FCM push metadata (notification title, device token) is routed
+through Google's servers. ntfy is the private option — **but note the default
+`NTFY_SERVER_URL` is the public `https://ntfy.sh` cloud service**, so push
+metadata passes through ntfy.sh's servers unless you self-host ntfy (set
+`NTFY_SERVER_URL`); only a self-hosted ntfy keeps everything on your own
+infrastructure.
 
 ## 8.1 When push fires
 
-- A frame targets a `chat_id` whose device is **disconnected** (WS closed) →
-  drop to **outbox** + fire **push**.
+- A frame targets a `chat_id` whose device is **disconnected** (no live
+  SSE/long-poll subscriber) → drop to **outbox** + fire **push** — with one
+  refinement, *turn-aware push* (below).
 - Also fire push for high-priority foreground events the user should see even if
   the app is backgrounded (approvals, clarifies, cron completions) — the app
   decides whether to also show an in-app banner.
 - If the device is **connected**, no push (the live frame is enough).
 
+### 8.1.1 Turn-aware push (one push per turn, final answer as body)
+
+An agent turn can span minutes and emit several completed status messages
+("researching X…", "found Y…", "writing findings…", final answer). Pushing each
+parked message would spam an offline user with the steps in between. So while
+the agent's turn is **in flight** (hermes holds the typing indicator on from
+turn start until the handler's `finally` at turn end), normal-priority
+`message` / `message.stop` / `media.offer` frames that park with no live
+device are **held back** per chat instead of pushing; the latest one is pushed
+when the turn ends (`stop_typing`), so the offline user gets **one push with
+the final answer**. Details:
+
+- Turn state is tracked per `chat_id` from the typing indicator
+  (`send_typing` → in flight, `stop_typing` → ended; hermes fires
+  `stop_typing` in the handler's `finally`, after the final send, so the
+  flush always sees the final frame).
+- The held-back frame is still parked in the outbox — sync catch-up is
+  unaffected; only the push is deferred.
+- **High-priority notifications** (approval/clarify/cron) push immediately,
+  even mid-turn — they need user action.
+- If the device **reconnects mid-turn** (SSE/long-poll open), the held-back
+  push is dropped: the app syncs the parked frames and must not get a
+duplicate push at turn end.
+- If the turn ends while the device is live, nothing is pushed (the frames
+  were delivered live / synced).
+- Turns without a typing indicator (e.g. typing disabled in config) and
+  non-turn deliveries (cron, standalone sends) push immediately as before.
+- Best-effort: a gateway crash mid-turn loses the held-back push (the frames
+  remain in the outbox and sync on reconnect).
+
 ## 8.2 `PushBackend` interface (`push.py`)
 
 ```python
@@ -23,13 +60,14 @@ class PushBackend(Protocol):
     def configured(self) -> bool: ...
 ```
 
-Selected at adapter init by `ANDROID_PUSH_BACKEND` (`fcm` default, `ntfy`).
+Selected at adapter init by `IRIS_PUSH_BACKEND` (`ntfy` default, `fcm`).
+
+### 8.2.1 `FcmBackend` (optional; metadata via Google)
 
-### 8.2.1 `FcmBackend` (primary)
 - **FCM HTTP v1 API** via `httpx` (core dep). Auth = Firebase **service
-  account** (`ANDROID_FCM_SERVICE_ACCOUNT` JSON path) → mint a short-lived
+  account** (`IRIS_FCM_SERVICE_ACCOUNT` JSON path) → mint a short-lived
   OAuth2 access token (cached, refreshed before expiry).
-- Fallback: legacy **server key** (`ANDROID_FCM_SERVER_KEY`) if no service
+- Fallback: legacy **server key** (`IRIS_FCM_SERVER_KEY`) if no service
   account (simpler, but legacy).
 - Target = the device's **FCM token** (registered via `hello` /
   `fcm.register`, stored in `devices.db`).
@@ -42,7 +80,8 @@ Selected at adapter init by `ANDROID_PUSH_BACKEND` (`fcm` default, `ntfy`).
 - Batch: FCM allows up to 500 tokens/message; we send per-device (1 user, few
   devices).
 
-### 8.2.2 `NtfyBackend` (fallback, self-host friendly)
+### 8.2.2 `NtfyBackend` (default, self-host friendly)
+
 - Reuses hermes's existing ntfy publish path (hermes ships an ntfy adapter).
 - Publish to `NTFY_TOPIC` on `NTFY_SERVER_URL` (default `https://ntfy.sh`) via
   `httpx` POST, with an `X-Title` / `X-Message` / `X-Tag` / `X-Priority` and a

docs/09-pairing-security.md

@@ -13,21 +13,24 @@
 ## 9.2 Pairing flow
 
 1. **Generate a token.** `hermes gateway setup` (our `interactive_setup`) either
-   uses an existing `ANDROID_TOKEN` or generates a fresh high-entropy token
+   uses an existing `IRIS_TOKEN` or generates a fresh high-entropy token
    (e.g. 32 bytes → 64 hex chars) and stores it in `.env`.
 2. **Present to the app.** Two options:
    - **QR code:** the setup prints a QR encoding
-     `iris://pair?host=<lan-ip>&port=8790&token=<token>` (or a WSS URL). The
-     phone scans it with the app's camera (or a system scanner) → pre-fills
+     `iris://pair?host=<lan-ip>&port=8791&secure=0&token=<token>` (or a WSS
+     URL when `secure=1`). The phone scans it with the app's **Scan QR**
+     button (or a system scanner → `iris://pair` deep link) → pre-fills
      settings.
    - **Manual:** user types the server URL + token in the app's Connect screen.
 3. **App connects.** First WS frame is `hello {token, device_id, device_name,
    caps, fcm_token?}`.
-4. **Server verifies.** Constant-time compare of `token` vs `ANDROID_TOKEN`
+4. **Server verifies.** Constant-time compare of `token` vs `IRIS_TOKEN`
    (`hmac.compare_digest`). Optionally check `device_id` against
-   `ANDROID_ALLOWED_USERS` (if set) or `ANDROID_ALLOW_ALL_USERS`.
-5. **On success:** register the device in `devices.db`, send `hello.ack`.
-   **On failure:** send `error {code:"auth"}` and close.
+   `IRIS_ALLOWED_USERS` (if set) or `IRIS_ALLOW_ALL_USERS`.
+5. **On success:** register the device in `devices.db`, **mint its
+   per-device token** (if it has none yet) and return it in
+   `hello.ack.device_token`. **On failure:** send `error {code:"auth"}`
+   and close.
 
 `device_id` is a stable, app-generated UUID (persisted in the app's
 secure storage). It identifies the device for routing + push, **not** as a
@@ -35,37 +38,89 @@ security principal (the token is).
 
 ## 9.3 Auth model
 
-- **Token = the security principal.** Any connection presenting the valid
-  `ANDROID_TOKEN` is authorized (it's the user's own token).
-- **Allowlist (optional):** `ANDROID_ALLOWED_USERS` (comma-separated
-  `device_id`s) restricts which *devices* may connect even with the token —
-  useful if the token is shared. `ANDROID_ALLOW_ALL_USERS=true` disables the
-  allowlist (dev only).
-- **Per-device tokens (stretch):** mint a unique token per device at pairing
-  (revocable) instead of one shared token. v1 uses the shared token + optional
-  device allowlist.
-- **Re-pairing:** rotating `ANDROID_TOKEN` invalidates all devices; they must
-  re-pair. `hermes android pair` (stretch CLI) re-issues + prints a new QR.
+- **Two tokens, one principal per device.**
+  - **Shared `IRIS_TOKEN` (bootstrap):** the setup token from
+    `hermes gateway setup`. It authorizes *pairing* — a NEW device (no row
+    in `devices.db` yet) presents it to connect, and the gateway mints a
+    per-device token for it (returned in `hello.ack.device_token`). It
+    keeps working for devices that never received a per-device token
+    (legacy apps), so an upgrade never bricks a pairing.
+  - **Per-device token (revocable):** minted once at pairing
+    (`DeviceRegistry.issue_token`, 64 hex chars, stored in the `devices`
+    table of `devices.db`). The app stores it in secure storage and
+    presents it INSTEAD of the shared token from the next request on
+    (`Authorization: Bearer <device-token>`). Both tokens are compared in
+    constant time (`verify_token`); a revoked device is rejected before
+    either comparison runs.
+- **Per-device revocation.** Two control surfaces (run on the gateway host):
+  - **Setup flow** — `hermes gateway setup` → *Iris*: on an existing setup
+    (devices already paired) it asks **"Remove a paired device?"** (default
+    No). If yes: a numbered select menu (name, device id, last seen) whose
+    LAST option is *Exit* (leaves the removal loop, continues the setup);
+    picking a device asks for confirmation, then returns to the menu so
+    several devices can be removed in a row.
+  - **CLI** — `gateway-plugin/tools/iris_devices.py`:
+    - `list` — paired devices (id, name, token minted?, last seen) + revoked ids.
+    - `revoke <device_id>` — drops the device's row (token, push tokens,
+      cursor) AND adds its id to the `revoked` denylist: the device can no
+      longer connect with its device token **or** the shared token, while
+      every other device is unaffected. This is the isolation primitive a
+      shared token alone can't provide (a compromised device can't be cut
+      off without rotating the token for everyone).
+    - `unrevoke <device_id>` — removes it from the denylist so it can pair
+      again (a fresh token is minted at the next pairing).
+    - `reissue <device_id>` — rotates the device's token (the old one stops
+      working; the app picks up the new one on its next (re)connect via
+      `hello.ack`).
+  Re-pairing a revoked device also works by giving the app a fresh
+  `device_id` (e.g. `adb shell pm clear dev.iris.app`), which bootstraps
+  with the shared token like any new device.
+- **Allowlist (optional):** `IRIS_ALLOWED_USERS` (comma-separated
+  `device_id`s) restricts which *devices* may connect even with a valid
+  token — useful if the shared token is exposed. `IRIS_ALLOW_ALL_USERS=true`
+  disables the allowlist (dev only).
+- **Re-pairing / rotation.** Rotating `IRIS_TOKEN` no longer invalidates
+  paired devices: they authenticate with their per-device tokens, which
+  survive the rotation. Only bootstrap of NEW devices needs the new shared
+  token. (Legacy devices without a per-device token still re-pair, as
+  before.)
 
 ## 9.4 Transport security
 
-- **Default (LAN/dev):** plain `ws://` on the trusted LAN. Fine for a home
+- **Default (LAN/dev):** plain `http://` on the trusted LAN. Fine for a home
   network.
-- **WSS (recommended for remote):** set `ANDROID_WS_CERT` / `ANDROID_WS_KEY`
-  (self-signed or CA-signed). The app pins/accepts the cert (self-signed → user
-  confirms fingerprint on first pair, like a SSH host key). 
+- **HTTPS (recommended for remote):** set `IRIS_HTTP_CERT` / `IRIS_HTTP_KEY`
+  (self-signed or CA-signed). CA-signed certs work out of the box.
+  For a **self-signed** cert the app shows its SHA-256 fingerprint on first
+  pair (like a SSH host key); once the user confirms it, the fingerprint is
+  pinned in secure storage (`SecureStore.pinnedCertFingerprint`) and the
+  app's `PinningTrustManager` accepts exactly that certificate from then on
+  (hostname verification still applies). A *changed* certificate fails
+  again with a fresh confirm request — the user must re-confirm, like a
+  changed SSH host key. No system trust-store install needed. Note: the cert
+  must carry a **SAN** for the URL host (OkHttp's hostname verifier rejects
+  CN-only certs even when pinned) — e.g. `openssl req -x509 ... -addext
+  "subjectAltName=DNS:myhost,IP:192.168.1.10"`.
 - **Remote reachability options** (documented, user's choice):
   - **Tailscale / WireGuard** (recommended): gateway gets a stable tailnet IP;
     app connects over the private mesh. No public exposure.
   - **Reverse proxy / tunnel** (Caddy, Cloudflare Tunnel, ngrok): terminate TLS
-    at the edge, forward WS to `127.0.0.1:8790`.
-  - **Public bind** (`0.0.0.0`) + WSS + strong token — last resort.
+    at the edge, forward to `127.0.0.1:8791`.
+  - **Public bind** (`0.0.0.0`) + HTTPS + strong token — last resort.
+- **HTTP transport (docs/19):** the gateway serves the same frames over plain
+  HTTP (`IRIS_HTTP_PORT`, default 8791) — the only device-facing transport.
+  It shares the same lock as everything else: the same Bearer token
+  (constant-time `verify_token`) + the same device allowlist
+  (`X-Iris-Device`), the same 64 KiB body cap and per-device rate limit.
+  Optional TLS via `IRIS_HTTP_CERT` / `IRIS_HTTP_KEY`.
+  `GET /v1/health` is unauthenticated by design (liveness only — it must
+  not reflect tokens, device ids, or versions).
 - The app stores the server URL + (for self-signed) the pinned cert fingerprint
   in secure storage.
 
 ## 9.5 Secret & PII handling
 
-- **Tokens/keys never logged.** Redact `ANDROID_TOKEN`, FCM tokens/keys, ntfy
+- **Tokens/keys never logged.** Redact `IRIS_TOKEN`, FCM tokens/keys, ntfy
   tokens in all log output (hermes PII policy; `agent/redact.py` patterns).
 - **`device_id`** is a random UUID (not PII). `device_name` is user-chosen.
 - **Media pull** is gated by hermes `validate_media_delivery_path` + delivery
@@ -76,7 +131,7 @@ security principal (the token is).
 
 ## 9.6 Profile safety
 
-- All plugin state lives under `get_hermes_home()/"android"` (profile-aware).
+- All plugin state lives under `get_hermes_home()/"iris"` (profile-aware).
 - Secrets are read with the scope-aware `_get_scoped_secret` pattern (see
   `plugins/platforms/irc/adapter.py:42`) so multiplexed profiles don't leak
   each other's tokens (fail-closed under `gateway.multiplex_profiles`).
@@ -104,14 +159,15 @@ M7 research pass. "verified" = implemented and covered by
 | # | Item | Status | Evidence / mitigation |
 | --- | ------ | -------- | ----------------------- |
 | 1 | Constant-time token compare | verified | `gateway-plugin/pairing.py:34` (`hmac.compare_digest`); `test_wrong_token_rejected` |
-| 2 | Bounded per-connection send buffer + rate limit on inbound frames | verified | Send: `SEND_TIMEOUT_S` bounds every outbound send (`ws_server.py:47`, `broadcast`/`send_to`). Inbound: per-connection token bucket on JSON frames (20/s, burst 40) → `error {code:"rate_limited"}` + close on exceed (`ws_server.py:55`, `_TokenBucket`, `_on_frame`); binary upload chunks exempt (see gap 1) |
-| 3 | Reject oversized frames / uploads (`max_upload_bytes`) | verified | `serve(max_size=adapter.max_upload_bytes)` (`ws_server.py:139`); per-upload total cap in `media.py` (`create_upload`/`feed`); `test_upload_declared_over_limit_rejected`, `test_upload_midstream_over_limit_rejected` |
+| 2 | Bounded per-connection send buffer + rate limit on inbound frames | verified | Send: `SEND_TIMEOUT_S` bounds every outbound send (`http_server.py`, `broadcast`/`send_to`). Inbound: per-device token bucket on JSON frames (20/s, burst 40) → `429` on exceed (`http_server.py`, `_rate_limited`); media uploads bounded by the per-request body cap + per-upload total cap (see gap 1) |
+| 3 | Reject oversized frames / uploads (`max_upload_bytes`) | verified | Per-request body cap in `http_server.py`; per-upload total cap in `media.py` (`create_upload`/`feed`); `test_upload_declared_over_limit_rejected`, `test_upload_midstream_over_limit_rejected` |
 | 4 | Verify media sha256 + re-sniff MIME (don't trust client) | verified | `media.py:317` (`complete_upload` digest check), `media.py:147` (`reclassify_kind`); `test_upload_sha256_mismatch_rejected`, `test_reclassify_kind_does_not_trust_client` |
 | 5 | Redact all secrets in logs | gap | No mechanical redaction; the token is printed to stdout by design during `hermes gateway setup` (`gateway-plugin/adapter.py:632,650`). Mitigation: stdout is operator-only, not a log file; a redaction pass over gateway logs is planned |
-| 6 | WSS + cert pinning for remote | gap (partial) | WSS supported server-side (`ANDROID_WS_CERT`/`ANDROID_WS_KEY`, `ws_server.py:122`); the app builds a default `OkHttpClient` with no `CertificatePinner` (`app/shared/src/commonMain/kotlin/iris/net/GatewayClient.kt:87`). Mitigation: remote access requires CA-signed WSS until pinning lands; LAN `ws://` stays the default |
+| 6 | HTTPS + cert pinning for remote | implemented | TLS supported server-side (`IRIS_HTTP_CERT`/`IRIS_HTTP_KEY`, `http_server.py`); the app pins self-signed certs via a fingerprint-confirm flow: `PinningTrustManager` wraps the platform default trust manager, a rejected cert is accepted only when its SHA-256 fingerprint matches the user-confirmed pin in `SecureStore.pinnedCertFingerprint`, anything else fails with `TlsFingerprintRequired` → confirm dialog on the Connect screen (`app/shared/src/commonMain/kotlin/iris/net/TlsPinning.kt`, `GatewayClient.State.TlsConfirmRequired`); hostname verification still applies (the cert needs a SAN for the URL host). CA-signed certs work out of the box; LAN `http://` stays the default. Tests: `TlsPinningTest`, `TlsPinningIntegrationTest` |
 | 7 | Outbox retention cap + prune | verified | `gateway-plugin/outbox.py:48` (`retention_hours` default 72h, `max_rows` cap, `take_overflow_pruned`); `test_outbox_row_cap_prunes_oldest` |
-| 8 | Fail-closed secret reads under multiplexing | verified | `_get_scoped_secret` (`gateway-plugin/adapter.py:74`) for `ANDROID_TOKEN`/`ANDROID_WS_CERT`/`ANDROID_WS_KEY`/FCM/ntfy secrets; scoped bind lock in `connect()` (`adapter.py:779`) |
-| 9 | Gap: inbound frame rate limiting | implemented | Closes item 2: token bucket in `ws_server.py` (JSON frames only). Binary upload chunks are exempt — a 100 MB upload is 400 × 256 KiB frames in a tight loop and would exhaust any sane bucket; uploads are already bounded by per-frame `max_size` + the per-upload total cap |
+| 8 | Fail-closed secret reads under multiplexing | verified | `_get_scoped_secret` (`gateway-plugin/adapter.py:74`) for `IRIS_TOKEN`/`IRIS_HTTP_CERT`/`IRIS_HTTP_KEY`/FCM/ntfy secrets; scoped bind lock in `connect()` (`adapter.py:779`) |
+| 9 | Gap: inbound frame rate limiting | implemented | Closes item 2: per-device token bucket in `http_server.py` (`_rate_limited`). Media uploads are bounded by the per-request body cap + the per-upload total cap |
 | 10 | Gap: Android token storage | implemented | `AndroidSecureStore` → `EncryptedSharedPreferences` (MasterKey AES256_GCM) with one-time migration of the plain `iris` prefs (read old key → write encrypted → delete old key); dep in `app/shared/build.gradle.kts` (`app/shared/src/androidMain/kotlin/iris/platform/AndroidSecureStore.kt`) |
 | 11 | Gap: guard not committed | implemented | `.pre-commit-config.yaml` (local hook → `scripts/guard_hermes_agent.sh --staged`); a fresh clone gets the guard after `pre-commit install` |
-| 12 | Gap: in-app QR scanner | gap | Pairing is manual URL+token only; the server prints a QR (`gateway-plugin/adapter.py:648-654`) that any system scanner can read. Plan: in-app camera scan later |
+| 12 | Gap: in-app QR scanner | implemented | `hermes gateway setup` renders a terminal QR (`gateway-plugin/qr.py`, pure-stdlib encoder) and the app's Connect screen has a **Scan QR** button (CameraX + ML Kit, `QrScanActivity`) plus an `iris://pair` deep link (`PairLink.parse`); `docs/20` |
+| 13 | Gap: per-device tokens (revocation) | implemented | `DeviceRegistry.issue_token` mints a 64-hex per-device token at pairing (stored in `devices.db`, returned in `hello.ack.device_token`); the app stores it in secure storage and presents it instead of the shared `IRIS_TOKEN` (bootstrap path unchanged). `tools/iris_devices.py revoke <device_id>` drops the device + denylists its id (rejected even with the shared token); `unrevoke`/`reissue` for re-pairing/rotation. `docs/09` §9.3 |

docs/10-android-app.md

@@ -1,4 +1,4 @@
-# 10 — Android App (Kotlin + Jetpack Compose)
+# 10 — Iris App (Android; Kotlin + Jetpack Compose)
 
 Native client. Lives in the Compose Multiplatform project at `app/`; the bulk of
 the code is in `app/shared` (commonMain) so the Desktop app reuses it.
@@ -115,7 +115,7 @@ app/shared/src/
 
 - `ToolCard` renders `tool.start/progress/end` frames.
 - The gateway always supplies the **full** tool data: it forces
-  `display.platforms.android.tool_progress: verbose` (so the progress line
+  `display.platforms.iris.tool_progress: verbose` (so the progress line
   carries the full args JSON → `tool.start.args`) and captures each completed
   call via the `post_tool_call` hook (→ `tool.end` `output_preview` /
   `duration` / `ok`). The app decides how much to show.
@@ -257,8 +257,17 @@ payloads** so the schema does not drift with the Kotlin model fields
 
 - `message(lane PK, id PK, ts, payload)` — one row per persisted
   `MessageItem`; `lane` is the lane key (`chatId` or `chatId::threadId`),
-  `ts` for ordering. Tool cards and local system notices are **not**
-  persisted (ephemeral; they are not part of `history` either).
+  `ts` for ordering. Local system notices are **not** persisted (ephemeral).
+- `tool(lane PK, id PK, seq, payload)` — one row per persisted `ToolItem`
+  (tool-activity card). Tool cards are **not** part of the gateway's
+  `history` (which carries final messages only), so the app persists them
+  itself to restore them across a restart. The payload carries `anchor_id`
+  (the id of the message the card follows — the last non-streaming message
+  when the tool started); on load the card is inserted after its anchor, so
+  the order user message → tool card → answer survives a restart. A card
+  whose anchor is gone (deleted message) falls to the end of the lane; an
+  open card (process died before `tool.end`) is restored closed as
+  interrupted.
 - `channel(chat_id PK, payload)` — the whole channel directory (channels +
   threads), so the drawer works offline.
 - `meta(key PK, value)` — small UI state (currently: `last_lane`, the
@@ -308,5 +317,13 @@ Storage: `AndroidSqliteDriver` (app database dir) on Android,
 - First launch → **Connect**: server URL + token (or scan QR). "Test connection"
   does a real `hello` (not just a TCP probe — per hermes desktop guidance, the
   auth leg must be exercised). On success → save (secure storage) → main.
+- **Scan QR** (Android only, `docs/20`): a button below the token field opens
+  `QrScanActivity` (CameraX + ML Kit, on-device, no Play services), requests the
+  `CAMERA` permission, and pre-fills URL + token from the decoded
+  `iris://pair…` payload via `PairLink.parse`. It never auto-connects — the
+  user still taps "Test & Connect". A non-pairing QR sets an error and leaves
+  the fields untouched. The same payload also arrives as an `iris://pair` deep
+  link (system scanner / other phones) and pre-fills the screen the same way.
+  Hidden on desktop (no camera).
 - States: connecting / connected / reconnecting / degraded / auth-failed — each
   with honest copy and a way out.

docs/11-desktop-app.md

@@ -1,6 +1,6 @@
 # 11 — Desktop App (Kotlin + Compose Multiplatform)
 
-The desktop app is **the Android app, tweaked for a big screen**. It reuses the
+The desktop app is **the Iris app, tweaked for a big screen**. It reuses the
 entire `app/shared` module (protocol, network, repositories, state, most UI) and
 only adds desktop platform services + a wider default layout.
 
@@ -62,9 +62,9 @@ only adds desktop platform services + a wider default layout.
 - The desktop app connects to the **same** gateway WS server as the phone (the
   user's home server / Tailscale). It does **not** spawn its own backend (unlike
   hermes's existing Electron desktop, which spawns `hermes serve`) — our
-  desktop is a pure client of the messaging gateway, matching the Android app.
+  desktop is a pure client of the messaging gateway, matching the Iris app.
 
-## 11.5 Parity checklist (same functionality as Android)
+## 11.5 Parity checklist (same functionality as the Iris app)
 
 - [ ] Streaming, reasoning block, tool cards (3-level verbosity), commentary.
 - [ ] Channels + threads + new channel + cron target.

docs/12-toolchain.md

@@ -9,6 +9,7 @@ First-time setup on a machine (verified baseline: CachyOS/Arch, `pacman`,
 pacman -S jdk17-openjdk
 java -version   # expect 17.x
 ```
+
 (Compose Multiplatform + current AGP are happy on JDK 17. Use 17 to match the
 Android toolchain; 21 also works but 17 is the safe floor.)
 
@@ -28,10 +29,12 @@ export PATH=$PATH:$ANDROID_HOME/cmdline-tools/latest/bin:$ANDROID_HOME/platform-
 sdkmanager --licenses
 sdkmanager "platform-tools" "platforms;android-34" "build-tools;34.0.0"
 ```
+
 Persist `ANDROID_HOME`/`PATH` in `~/.bashrc`. ADB is already installed system-wide;
 `platform-tools` from the SDK is fine too (whichever is first on `PATH`).
 
 Create `app/local.properties`:
+
 ```
 sdk.dir=/home/<you>/android-sdk
 ```
@@ -39,10 +42,12 @@ sdk.dir=/home/<you>/android-sdk
 ## 12.3 Gradle
 
 No system install — use the project wrapper:
+
 ```bash
 cd app
 ./gradlew tasks        # first run downloads the wrapper distribution
 ```
+
 (The wrapper version is pinned in `app/gradle/wrapper/gradle-wrapper.properties`.)
 
 ## 12.4 hermes environment (for the plugin + running the gateway)
@@ -53,15 +58,19 @@ uv sync                # creates .venv with all core deps (websockets, httpx,
 source .venv/bin/activate
 hermes --version       # sanity
 ```
+
 - Run the gateway with the plugin:
+
   ```bash
   # install the plugin (dev: symlink)
   mkdir -p ~/.hermes/plugins
-  ln -s "$PWD/../gateway-plugin" ~/.hermes/plugins/android
-  hermes gateway status     # should list "android"
+  ln -s "$PWD/../gateway-plugin" ~/.hermes/plugins/iris
+  hermes gateway status     # should list "iris"
   hermes gateway            # run
   ```
+
 - Tests use hermes's hermetic runner (never bare `pytest`):
+
   ```bash
   scripts/run_tests.sh tests/gateway/test_android.py
   ```
@@ -73,43 +82,46 @@ hermes --version       # sanity
    `dev.iris.app`). Download `google-services.json` → `app/androidApp/`.
 3. Create a **service account** (Project settings → Service accounts → Generate
    new private key) → download the JSON. Store its path in
-   `ANDROID_FCM_SERVICE_ACCOUNT` (in `~/.hermes/.env`).
+   `IRIS_FCM_SERVICE_ACCOUNT` (in `~/.hermes/.env`).
 4. The app's `FirebaseMessagingService` obtains the FCM token at runtime and
    registers it via `hello` / `fcm.register`.
 
-> Skip Firebase → set `ANDROID_PUSH_BACKEND=ntfy` and configure `NTFY_TOPIC` /
-> `NTFY_SERVER_URL` (self-host ntfy or use ntfy.sh). See `08-push.md`.
+> Skip Firebase → the default is already ntfy: leave `IRIS_PUSH_BACKEND` unset
+> (or set it to `ntfy`) and configure `NTFY_TOPIC` / `NTFY_SERVER_URL`
+> (self-host ntfy or use ntfy.sh). See `08-push.md`.
 
 ## 12.6 Environment variables (summary)
 
 **Secrets (`~/.hermes/.env`):**
+
 ```
-ANDROID_TOKEN=<64-hex>
-ANDROID_PUSH_BACKEND=fcm            # or ntfy
-ANDROID_FCM_SERVICE_ACCOUNT=/path/to/service-account.json
-# ANDROID_FCM_SERVER_KEY=<legacy key>   # fallback if no service account
+IRIS_TOKEN=<64-hex>
+IRIS_PUSH_BACKEND=ntfy           # default; fcm = opt-in (metadata via Google)
+IRIS_FCM_SERVICE_ACCOUNT=/path/to/service-account.json
+# IRIS_FCM_SERVER_KEY=<legacy key>   # fallback if no service account
 # NTFY_TOPIC=iris-push                  # when ntfy
 # NTFY_SERVER_URL=https://ntfy.sh
-# ANDROID_WS_CERT=/path/cert.pem        # WSS
-# ANDROID_WS_KEY=/path/key.pem
+# IRIS_HTTP_CERT=/path/cert.pem      # HTTPS
+# IRIS_HTTP_KEY=/path/key.pem
 ```
 
 **Behavioral (`~/.hermes/config.yaml`):**
+
 ```yaml
 gateway:
   platforms:
-    android:
+    iris:
       enabled: true
       extra:
         host: 127.0.0.1        # 0.0.0.0 for LAN
-        port: 8790
-        home_channel: android:default
+        http_port: 8791
+        home_channel: default
         push_backend: fcm
         outbox_retention_hours: 72
         max_upload_bytes: 104857600   # 100 MB
 display:
   platforms:
-    android:
+    iris:
       show_reasoning: true
       reasoning_style: code
       streaming: true
@@ -120,19 +132,19 @@ display:
 
 ```bash
 # 1. gateway up with plugin
-hermes gateway status | grep -i android
+hermes gateway status | grep -i iris
 
-# 2. a raw WS client can pair + echo
-python - <<'PY'
-import asyncio, json, websockets
-async def main():
-    async with websockets.connect("ws://127.0.0.1:8790/ws") as ws:
-        await ws.send(json.dumps({"v":1,"type":"hello","payload":{
-            "token":"<ANDROID_TOKEN>","device_id":"test","device_name":"probe",
-            "caps":{"min_protocol":1}}}))
-        print("recv:", await ws.recv())
-asyncio.run(main())
-PY
+# 2. the HTTP server answers (unauthenticated liveness)
+curl -s http://127.0.0.1:8791/v1/health
+# -> {"ok": true}
+
+# 3. a frame round-trip with the pairing token
+curl -s -X POST http://127.0.0.1:8791/v1/frame \
+  -H "Authorization: Bearer <IRIS_TOKEN>" -H "X-Iris-Device: probe" \
+  -H "Content-Type: application/json" \
+  -d '{"v":1,"type":"commands.catalog","id":1,"payload":{}}'
 ```
-Expect a `hello.ack`. If you get `error {code:"auth"}`, the token/host/port is
+
+Expect `{"ok": true}` from the health probe and a `commands.catalog` reply
+frame from the POST. If you get `401`, the token/host/port is
 wrong.

docs/13-testing.md

@@ -6,20 +6,22 @@ without the app (critical for verifying frame shapes early).
 
 ## 13.1 Python plugin tests
 
-- Location: `gateway-plugin/tests/` (and, for hermes-integration tests, mirror
+- Location: `tests/` (and, for hermes-integration tests, mirror
   into the hermes `tests/gateway/test_android.py` pattern when running under
   hermes's suite).
 - **Run with hermes's hermetic runner** (never bare `pytest`):
+
   ```bash
   cd hermes-agent
   scripts/run_tests.sh tests/gateway/test_android.py
   scripts/run_tests.sh                          # full suite (CI parity)
   ```
+
 - Coverage to write (behavioral, not change-detector — per hermes test policy):
   - `register(ctx)` produces a valid `PlatformEntry` (name, cron env var,
     parse_target_ref).
   - `check_requirements` / `validate_config` / `is_connected` truth table.
-  - `_parse_target_ref`: `android:<chat>`, `android:<chat>:<thread>`, non-android
+  - `_parse_target_ref`: `iris:<chat>`, `iris:<chat>:<thread>`, non-iris
     → None.
   - **Reasoning split:** given a `show_reasoning`-style final text, `send()`
     emits `message {reasoning, text}` correctly; no-prefix → no reasoning field.
@@ -46,19 +48,20 @@ without the app (critical for verifying frame shapes early).
 
 ## 13.2 WS test-client harness (do this FIRST, in M1/M2)
 
-A small Python script (`gateway-plugin/tests/ws_probe.py`) that connects to the
+A small Python script (`tests/ws_probe.py`) that connects to the
 **real running gateway** and drives a turn, printing every frame. This is how we
 **empirically confirm** the exact frame shapes (especially tool-progress vs
 commentary classification and the reasoning prefix) before/while building the
 Kotlin client.
 
 ```bash
-hermes gateway &                      # with the android plugin
-python gateway-plugin/tests/ws_probe.py --token <ANDROID_TOKEN> \
+hermes gateway &                      # with the iris plugin
+python tests/ws_probe.py --token <IRIS_TOKEN> \
     --send "list the files and summarize"
 # prints: hello.ack, typing, message.start, message.update…, tool.start, tool.end,
 #         commentary, message.stop {reasoning,…}, …
 ```
+
 Use it to lock `04-wire-protocol.md` against reality and to debug the adapter
 without waiting for the app.
 
@@ -102,6 +105,7 @@ adb logcat -d > /tmp/logcat.txt
 ```
 
 **E2E scenarios (script where possible):**
+
 1. **Pair:** connect screen → enter URL+token → `hello.ack` → main. (Verify auth
    leg, not just TCP.)
 2. **Text round-trip:** send "hello" → streamed reply appears (message.start →
@@ -112,7 +116,7 @@ adb logcat -d > /tmp/logcat.txt
    verbosity in Settings → rendering changes.
 5. **Intermediate:** a multi-step prompt → commentary bubble appears dimmed.
 6. **Channels:** create "Cron Reports" → appears in list; set as cron target.
-7. **Cron delivery:** create a cron job `deliver=android:android:chan_<n>` → it
+7. **Cron delivery:** create a cron job `deliver=iris:chan_<n>` → it
    fires → lands in that channel (not default).
 8. **Search:** "search everywhere" vs "this chat" → correct scoping; tap → jump.
 9. **Media (in):** attach a photo + a video → agent receives (vision) → reply.
@@ -131,15 +135,24 @@ adb logcat -d > /tmp/logcat.txt
     entries drop out); tap a row → the command is sent and the drawer closes;
     type an unknown command → the drawer closes (the raw text can still be
     sent; hermes answers with its unknown-command reply).
+15. **HTTP fallback (docs/19):** with the WS port unreachable (e.g. the
+    gateway bound WS to a dead port, or a firewall dropping 8790 but not
+    8791), the app stays sendable: the status pill shows "connected · http"
+    (green), a sent message echoes back within ~1 s and the agent reply
+    streams in over SSE; the attach button is disabled (media needs the
+    live WS). When the WS comes back the pill returns to "connected" and
+    media works again. Automated: `e2e.py` scenario 13 (health +
+    `POST /v1/frame` + SSE turn, user-echo < 1.5 s) and
+    `ws_probe.py --http` (same assertion flags as the WS leg).
 
 ## 13.5 Debugging tips
 
 - **Gateway side:** `~/.hermes/logs/gateway.log` (and `hermes logs --follow`).
-  Our plugin logs under the `android` adapter name; secrets redacted.
+  Our plugin logs under the `iris` adapter name; secrets redacted.
 - **WS framing bugs:** use the `ws_probe.py` harness — it isolates the protocol
   from the app.
 - **Streaming jitter:** the consumer edits at intervals; if updates look chunky,
-  check `display.platforms.android.streaming` and the consumer's edit interval.
+  check `display.platforms.iris.streaming` and the consumer's edit interval.
 - **Media pull stalls:** check chunk size + backpressure; confirm the file is
   within hermes delivery roots (`validate_media_delivery_path`).
 - **FCM not arriving:** confirm the token registered (`devices.db`), the service

docs/14-milestones.md

@@ -1,4 +1,4 @@
-# 14 — Milestones (M0–M7)
+# 14 — Milestones (M0–M8)
 
 Phased delivery. Each milestone ends with a **demo** (on-device where noted) and
 has explicit **acceptance criteria**. Work top-to-bottom; don't skip M0/M1.
@@ -6,7 +6,9 @@ has explicit **acceptance criteria**. Work top-to-bottom; don't skip M0/M1.
 ---
 
 ## M0 — Toolchain & scaffolding
+
 **Goal:** everything builds; the plugin is discoverable; the repo is safe.
+
 - [X] Install JDK 17, Android SDK, set `ANDROID_HOME` (`12-toolchain.md`).
 - [X] `cd hermes-agent && uv sync` (hermes venv works).
 - [X] Create monorepo scaffold (`02-monorepo.md`): `gateway-plugin/`, `app/`
@@ -16,20 +18,22 @@ has explicit **acceptance criteria**. Work top-to-bottom; don't skip M0/M1.
 - [X] CMP project builds empty: `./gradlew :androidApp:assembleDebug`,
       `./gradlew :desktopApp:run` (blank window).
 - [X] Plugin skeleton: `plugin.yaml` + `adapter.py` with `register(ctx)` + a
-      no-op `AndroidAdapter` → `hermes gateway status` lists **android**.
-- **Demo:** `hermes gateway status` shows `android`; `./gradlew
+      no-op `IrisAdapter` → `hermes gateway status` lists **iris**.
+- **Demo:** `hermes gateway status` shows `iris`; `./gradlew
   :androidApp:installDebug` installs a blank app on the MIX 2S.
 - **Accept:** blank app installs + launches on-device; plugin visible in
   `hermes gateway status`; `hermes-agent/` is git-ignored (verify with
   `git status --ignored`).
 
 ## M1 — Gateway core loop (text round-trip)
+
 **Goal:** pair + send a text message + get a (non-streaming) reply.
+
 - [X] WS server (`ws_server.py`): bind, `hello` auth (constant-time),
       `hello.ack`, heartbeat, connection registry.
-- [X] `AndroidAdapter.send()` → `message` frame; inbound `message.send` →
+- [X] `IrisAdapter.send()` → `message` frame; inbound `message.send` →
       `MessageEvent` → `handle_message`.
-- [X] Pairing store + `ANDROID_TOKEN`; QR payload in `interactive_setup`.
+- [X] Pairing store + `IRIS_TOKEN`; QR payload in `interactive_setup`.
 - [X] App: Connect screen (URL+token, real `hello` test), `GatewayClient`
       (connect + reconnect), ChatScreen sends + renders `message`.
 - [X] `ws_probe.py` harness drives a real turn.
@@ -38,9 +42,11 @@ has explicit **acceptance criteria**. Work top-to-bottom; don't skip M0/M1.
   reconnect after gateway restart re-pairs.
 
 ## M2 — Streaming + reasoning + tools + commentary
+
 **Goal:** the "agent transparency" features.
+
 - [X] Map consumer `send`/`edit_message` → `message.start/update/stop`.
-- [X] Reasoning: set `show_reasoning` for android; adapter splits prefix →
+- [X] Reasoning: set `show_reasoning` for iris; adapter splits prefix →
       `reasoning` field. **Verify format with `ws_probe.py`.** (The model
       returns a separate `reasoning_content` field. In the *streaming* case the
       gateway drops it — the stream consumer only forwards `content` and the
@@ -64,12 +70,14 @@ has explicit **acceptance criteria**. Work top-to-bottom; don't skip M0/M1.
   rendering; reasoning copy button works; frame shapes match `04-wire-protocol`.
 
 ## M3 — Channels/threads + cron + search
+
 **Goal:** organization + cron delegation + search.
+
 - [X] Channel directory (SQLite): default channel ensured; `channel.create/
       rename/set_default/delete` + `channel.*` frames.
 - [X] Threads: toggle in default chat; `thread_id` lanes; `create_handoff_thread`.
 - [X] `parse_target_ref_fn` + `cron_deliver_env_var` → cron
-      `deliver=android:<chat>[:<thread>]` works.
+      `deliver=iris:<chat>[:<thread>]` works.
 - [X] `search.py` FTS5 bridge; `search` frame (all / this-chat) → results.
 - [X] App: channel list (drawer/rail), thread toggle + topic switcher, "new
       channel" + "set as cron target", SearchScreen with scope toggle + jump.
@@ -79,7 +87,7 @@ has explicit **acceptance criteria**. Work top-to-bottom; don't skip M0/M1.
   isolate context; search scoping correct; channel list reconciles on events.
 - **Status (complete):** channel directory + threads + search + outbox sync
   verified end-to-end via `ws_probe.py` (create/rename/set_default/delete,
-  thread lanes, FTS5 search, sync); cron `deliver=android:<chat>[:<thread>]`
+  thread lanes, FTS5 search, sync); cron `deliver=iris:<chat>[:<thread>]`
   target resolution verified via `resolve_send_target`. App on-device: channel
   drawer, thread toggle + topic switcher, new channel, search overlay with
   jump. Minor UI gaps deferred to M7 polish: "set as cron target" is set via
@@ -89,7 +97,9 @@ has explicit **acceptance criteria**. Work top-to-bottom; don't skip M0/M1.
   not e2e-tested (it shares the verified resolution path).
 
 ## M4 — Media
+
 **Goal:** attach + receive + play media.
+
 - [X] Inbound: `media.upload` chunked → `cache_*_from_bytes` → `media_urls`;
       size limit + sha256 + MIME re-sniff.
 - [X] Outbound: `send_*` → `media.offer`; `media.pull` chunked; delivery-path
@@ -117,12 +127,14 @@ has explicit **acceptance criteria**. Work top-to-bottom; don't skip M0/M1.
   `04-wire-protocol.md` + `frames.schema.json`.
 
 ## M5 — Push + offline (FCM + ntfy)
+
 **Goal:** reach the phone when backgrounded; catch up on reconnect.
+
 - [x] Outbox (SQLite) + sync cursor; `sync`/`sync.done`; retention prune
       (row cap 5000 + prune banner, throttled 1/h).
 - [x] `push.py`: `FcmBackend` (HTTP v1 + service account, httpx; JWT via
       PyJWT+cryptography) + `NtfyBackend` (X-Data header); selected by
-      `ANDROID_PUSH_BACKEND`. ntfy server exposed in `server_caps.push_ntfy_server`.
+      `IRIS_PUSH_BACKEND`. ntfy server exposed in `server_caps.push_ntfy_server`.
 - [x] Fire push on no-live-subscriber; data payload for silent sync.
       High-priority kinds (approval/clarify/cron) push even when live.
 - [x] App: FCM service (`onNewToken` → `fcm.register`; inert without a
@@ -143,15 +155,17 @@ has explicit **acceptance criteria**. Work top-to-bottom; don't skip M0/M1.
   loss/dup (verified); banners show for foreground events (implemented).
 
 ## M6 — Desktop app
+
 **Goal:** the same app on a big screen.
+
 - [x] `desktopMain`: tray + OS notifications; `MediaPlayer` actual (mpv/WebView);
       `MediaPicker` actual (file dialog); `SecureStore` actual; window mgmt.
 - [x] Two-pane default layout; keyboard shortcuts; optional inspector pane.
-- [ ] Parity pass vs Android feature checklist (`11-desktop-app.md`).
+- [ ] Parity pass vs Iris app feature checklist (`11-desktop-app.md`).
 - [x] jpackage builds (Linux first; macOS/Windows as available).
 - **Demo:** desktop app pairs to the same gateway; full feature parity; tray
   notifications; media plays.
-- **Accept:** all Android features work on desktop; tray + shortcuts work;
+- **Accept:** all Iris app features work on desktop; tray + shortcuts work;
   native binary launches.
 - **Status (complete, 2026-08-19):** All `desktopMain` actuals implemented and
   verified on Linux (X11). `DesktopSecureStore`: non-secrets in
@@ -178,7 +192,9 @@ has explicit **acceptance criteria**. Work top-to-bottom; don't skip M0/M1.
   macOS/Windows packaging are deferred to M7.
 
 ## M7 — Polish + E2E + docs
+
 **Goal:** ship-quality.
+
 - [x] Telegram-style layout pass (per reference image): header, bubbles, date
       separators, ✓✓, model/token footer, banner, bottom bar.
 - [x] Theming (dark default, accent), onboarding/pairing UX, empty/loading/
@@ -222,12 +238,43 @@ has explicit **acceptance criteria**. Work top-to-bottom; don't skip M0/M1.
 
 ---
 
+## M8 — QR pairing
+
+**Goal:** QR-based pairing — a scannable QR at `hermes gateway setup` plus an
+in-app scanner and `iris://pair` deep link (closes gap #12, `docs/20`).
+
+- [x] Pure-stdlib QR encoder + terminal renderer (`gateway-plugin/qr.py`):
+      byte mode, EC M with L fallback, versions 1–10, ISO penalty masking,
+      **zero new Python deps**.
+- [x] `interactive_setup` renders the QR after the pairing URL (text lines
+      stay as the primary path).
+- [x] `PairLink` parser (`iris/util/PairLink.kt`) + jvmTest (valid/missing
+      token/bad port/wrong scheme/wrong host/percent-encoded/secure/default
+      port).
+- [x] CameraX + ML Kit scanner (`QrScanActivity`, on-device, no Play
+      services) + Connect-screen **Scan QR** button (Android only; hidden on
+      desktop) + `CAMERA` permission.
+- [x] `iris://pair` deep link (system-scanner / other-phone fallback) reusing
+      the same parser.
+- **Accept:** `docs/20` §20.6; gap #12 in `09-pairing-security.md` closed.
+- **Status (2026-08-22):** Encoder cross-checked byte-for-byte against an
+  independent reference and decoded by an independent decoder (zbarimg); fixed
+  v1-M and v7-M matrix vectors lock the algorithm. `hermes gateway setup`
+  prints a scannable QR (v7-M, 45 modules) for the 64-hex-token payload. App:
+  Connect screen shows **Scan QR** (Android), which opens `QrScanActivity`
+  (CameraX camera2 + ML Kit barcode), requests `CAMERA`, and pre-fills URL +
+  token via `PairLink.parse` without auto-connecting; `iris://pair` deep link
+  pre-fills the same way. Docs updated per `docs/20` Part C.
+
+---
+
 ## Sequencing notes
+
 - **M1/M2 depend on the `ws_probe.py` harness** to lock frame shapes early —
   build it in M1.
 - **M3 (cron) and M5 (push) both touch the outbox** — build the outbox in M3,
   extend for push in M5.
-- **M6 (desktop) reuses M1–M5 shared code** — do it after the Android features
+- **M6 (desktop) reuses M1–M5 shared code** — do it after the Iris app features
   are stable so the shared module is settled.
 - Parallelizable: plugin (Python) and app (Kotlin) can be worked on
   concurrently once the protocol (`04-wire-protocol.md`) is agreed; the probe

docs/15-hermes-reference.md

@@ -5,7 +5,7 @@ integration point. Paths are relative to `hermes-agent/` (the read-only
 reference). This lets a coder jump straight to the right code instead of
 re-deriving the architecture.
 
-> ⚠️ Read-only. We **install** our plugin into `~/.hermes/plugins/android`; we
+> ⚠️ Read-only. We **install** our plugin into `~/.hermes/plugins/iris`; we
 > never edit these files.
 
 ## Plugin / platform registration

docs/16-open-questions.md

@@ -4,8 +4,8 @@
 
 | # | Decision | Choice | Rationale |
 | --- | --- | --- | --- |
-| 1 | Desktop app tech | **Compose Multiplatform** | Desktop = "the Android app, tweaked"; share protocol/state/UI. |
-| 2 | Push backend | **Both — FCM primary, ntfy fallback** | FCM is standard/reliable; ntfy for self-hosters with no Firebase. `ANDROID_PUSH_BACKEND`. |
+| 1 | Desktop app tech | **Compose Multiplatform** | Desktop = "the Iris app, tweaked"; share protocol/state/UI. |
+| 2 | Push backend | **Both — ntfy default, FCM optional** (issue #10: FCM metadata — title, device token — is routed via Google's servers, contradicting the privacy claim; ntfy keeps it on your own infrastructure) | `IRIS_PUSH_BACKEND`. |
 | 3 | Media transport | **Over the WebSocket** | One transport, zero new Python deps; chunked binary frames. |
 | 4 | Phone default layout | **User-toggleable, single-pane default** | App-like on phones; auto two-pane on large screens; desktop defaults two-pane. |
 
@@ -13,14 +13,14 @@
 
 | Decision | Choice | Note |
 | --- | --- | --- |
-| Connection point | **Messaging gateway** (platform plugin `android`), not `tui_gateway` | Makes cron/`send_message`/slash/coexistence native. |
+| Connection point | **Messaging gateway** (platform plugin `iris`), not `tui_gateway` | Makes cron/`send_message`/slash/coexistence native. |
 | Plugin style | **Community plugin** (`register(ctx)`) | Zero hermes-core changes. |
 | Python deps | **None new** (`websockets` + `httpx` are core) | Respects hermes pinning policy. |
 | Tool events | **Structured frames; app controls verbosity** | Gateway sends full data; app = everything/truncated/nothing. |
 | Reasoning | **Adapter splits the `show_reasoning` prefix** | Clean `reasoning` field → collapsible block above message. |
 | Channels/threads | **Map onto `chat_id`/`thread_id`** | Existing gateway primitives; cron targets them. |
 | Offline | **SQLite outbox + sync cursor** | Catch-up on reconnect; push on disconnect. |
-| Default chat id | `android:default` | Home channel + cron default. |
+| Default chat id | `default` | Home channel + cron default. |
 | WS port | `8790` (default) | Configurable. |
 | minSdk | 26 (test device API 29) | Broad coverage. |
 | Frame routing | **Broadcast to all connected devices** (no per-chat subscribe) | Single-user model; simpler. |
@@ -29,6 +29,8 @@
 | Agent lifecycle | **`agent.busy`/`agent.idle`** events + **`agent.stop`/`agent.steer`** requests | App shows thinking indicator; user can abort or steer mid-turn. |
 | Local DB (KMP) | **SQLDelight** (not Room) | Room is Android-only; SQLDelight works in commonMain for both platforms. |
 | Voice input | **Record → upload as audio media** (no client-side STT) | Agent's STT (if configured) handles transcription. |
+| QR encoder | **Pure-stdlib** (`gateway-plugin/qr.py`) | No `qrcode`/`segno`/Pillow; byte mode, EC M→L, v1–10, ISO penalty masking. Keeps the plugin's zero-new-dep rule. |
+| QR scanner | **ML Kit barcode** (not zxing-android-embedded) | On-device, no Google Play services; better accuracy/latency, Google-maintained. Android-only (desktop has no camera). |
 
 ## Open questions (resolve during implementation)
 
@@ -42,10 +44,10 @@ will proceed with unless you say otherwise.
    live gateway. If a clean metadata marker exists, prefer it.
 2. **Reasoning prefix format stability (M2).** We split on the `code`-style
    `💭 **Reasoning:**\n```\n…\n```\n\n` prefix. *Default:* set
-   `reasoning_style: code` for android and split on that; fallback = no
+   `reasoning_style: code` for iris and split on that; fallback = no
    reasoning field (full text) if the prefix isn't found. Verify in M2.
 3. **Per-device tokens vs shared token (M1/M5).** *Default (v1):* shared
-   `ANDROID_TOKEN` + optional `ANDROID_ALLOWED_USERS` device allowlist.
+   `IRIS_TOKEN` + optional `IRIS_ALLOWED_USERS` device allowlist.
    Per-device revocable tokens are a stretch.
 4. **Desktop video backend (M6).** *Default:* `libmpv`/`mpv`-backed Compose
    surface, WebView fallback. Confirm `mpv` availability on target OSes during
@@ -54,7 +56,7 @@ will proceed with unless you say otherwise.
    recommended remote path; WSS + reverse proxy as alternatives. No public bind
    by default.
 6. **Streaming cadence (M2).** If live updates look chunky, tune
-   `display.platforms.android.streaming` / consumer edit interval. *Default:*
+   `display.platforms.iris.streaming` / consumer edit interval. *Default:*
    follow global streaming config.
 7. **App package name / branding.** *Default:* applicationId `dev.iris.app`,
    app name "Iris". Confirm final product name + package + icon.

docs/17-future-control-surface.md

@@ -153,7 +153,7 @@ Config + setup per provider — `web_server.py` `/api/memory/providers/*`.
    `app/shared/.../protocol/Protocol.kt` → `docs/protocol/frames.schema.json`).
 2. **Security is the real gate.** The single-user model in
    `09-pairing-security.md` still holds, but control frames widen the blast
-   radius of a leaked `ANDROID_TOKEN`. Sensitive operations (env/secrets,
+   radius of a leaked `IRIS_TOKEN`. Sensitive operations (env/secrets,
    config writes, gateway restart, profile deletion) should get either an
    in-app confirmation step or a capability flag negotiated at pairing.
 3. **Read-heavy first.** Most of the value is in list/view frames (cheap,

docs/18-code-review.md

@@ -1,7 +1,7 @@
 # 18 — Code Review & Lint/LSP Cleanup (alpha → stable)
 
-Comprehensive review of all three components — **gateway plugin**, **Android
-app**, and **Desktop app** — performed to take the project from alpha to a
+Comprehensive review of all three components — **gateway plugin**, **Iris app
+(Android)**, and **Desktop app** — performed to take the project from alpha to a
 clean, stable baseline. Each section records what was found, what was fixed,
 how it was verified, and what was deliberately left (with rationale).
 
@@ -50,7 +50,7 @@ findings. Categories:
   `hermes_cli.config`, but those live in `hermes_cli.cli_output`; it also imported
   a `print_code` that does not exist in hermes at all. The whole import block
   raised `ImportError`, which the surrounding `try/except` swallowed, so
-  `hermes gateway setup` for the android platform **always bailed out early** with
+  `hermes gateway setup` for the iris platform **always bailed out early** with
   "setup helpers unavailable" and never generated a token or prompted for
   host/port. Fixed by importing the print helpers from `hermes_cli.cli_output`,
   the env helpers from `hermes_cli.config`, and dropping the non-existent
@@ -127,9 +127,9 @@ rule set (`E W F I UP B SIM PL RET C4`) and `line-length = 100`. Changes:
 
 ---
 
-## 18.2 Android app (`app/androidApp` + `app/shared`)
+## 18.2 Iris app — Android (`app/androidApp` + `app/shared`)
 
-The Android and Desktop apps share the `:shared` KMP module (`commonMain` +
+The Iris Android and Desktop apps share the `:shared` KMP module (`commonMain` +
 `jvmMain`), so most Kotlin code is covered here and in 18.3.
 
 ### 18.2.1 Findings (before)

docs/19-http-fallback-transport.md

@@ -0,0 +1,405 @@
+# 19 — HTTP Fallback Transport (the "HTTP leg")
+
+A second, **short-lived-connection** transport next to the WebSocket: the same
+JSON frames, the same outbox/cursor, the same token — served over plain HTTP
+by the gateway. When the WS is down (flaky network, NAT timeout, app just
+relaunched), the app **sends over `POST` and receives over SSE** instead of
+waiting 2–20 s for a WS redial.
+
+Status: **implemented — and now the ONLY transport.** The WebSocket leg has
+been removed entirely from the codebase (gateway `ws_server.py` deleted;
+WS-only frames `hello`/`ping`/`pong`/`media.upload.*`/`media.pull*` dropped
+from `protocol.py` and `Protocol.kt`; `GatewayClient` is HTTP-only with no
+`HttpFallback` state — it *is* the connected state). HTTP is the primary and
+sole transport: v1 (JSON frames over POST/SSE/long-poll) and v2 (media over
+`POST /v1/media` + `GET /v1/media/{id}`, §19.15). Gateway leg:
+`gateway-plugin/http_server.py` (+ `dispatch.py` for frame dispatch);
+app leg: `app/shared/src/commonMain/kotlin/iris/net/HttpGateway.kt` +
+`GatewayClient.kt`. Legacy `ws(s)://` URLs entered by users are still
+accepted and rewritten to `http(s)://` (`HttpGateway.deriveHttpUrl`).
+Complements — does not replace — `04-wire-protocol.md` (frames),
+`08-push.md` (outbox/sync/push), and `09-pairing-security.md` (auth model).
+
+> **Note:** the rest of this document describes the original design, in
+> which HTTP was a *fallback* next to a WS primary. That framing is
+> historical; where it says "WS (primary)" / "HTTP (fallback)", read
+> "HTTP (the only transport)".
+
+## 19.1 Problem
+
+Today the WS is the *only* transport, and the app hard-gates sending on a live
+socket (`ChatScreen.doSend()` no-ops unless `State.Connected`;
+`GatewayClient.sendMessage()` drops when `socket == null`). Consequences:
+
+- **App killed → reopened:** full cold dial (TCP + TLS + `hello`/`hello.ack`,
+  15 s dial timeout) before the user can send. On a flaky network the first
+  dial often fails → backoff → second dial. Observed: 2–20 s of "can't send".
+- **Long-lived WS is the most fragile connection type on mobile:** idle
+  sockets expire in router/CGNAT NAT tables, die on WiFi↔cellular handover,
+  and are killed aggressively by OEM power management (MIUI on the test
+  device). There is no foreground service holding the WS.
+- **Stale detection is slow:** 20 s ping interval, 60 s reap — a dead-but-
+  unclosed socket can sit for up to a minute before redial.
+
+## 19.2 Why HTTP (and why not the alternatives)
+
+Short-lived HTTP requests are dramatically more resilient on mobile networks
+than a long-lived socket: no NAT table entry to expire, no proxy idle-kill,
+each request is a fresh connection (fast with TLS resumption), and they work
+through the restrictive proxies that mangle WebSockets. Sending a message
+becomes a single `POST` that completes in well under a second on a LAN —
+independent of whether the WS is up.
+
+Alternatives considered and rejected (research, 2026-08):
+
+| Option | Verdict |
+| --- | --- |
+| **MQTT broker** (QoS 1, persistent sessions) | Best protocol for flaky links, but new infra (broker process) + new Python dep (`paho-mqtt`, breaks the zero-new-deps rule) + new Kotlin dep + frame↔topic bridge. Overkill for a 1-user agent. |
+| **ntfy as the send path** (app publishes to a topic the gateway subscribes to) | Adds a third party to the critical send path; public ntfy.sh is already known-flaky. Not worth it. |
+| **WebTransport / QUIC** | The *real* fix for handover flakiness (connection migration), but no OkHttp support and `aioquic` is a new Python dep. Future option if this doc's approach is still not enough. |
+| **gRPC** | New deps both sides; no advantage over WS+SSE here. |
+| **Inverted connection** (app runs a local HTTP server, gateway pushes to the phone) | LAN-only, breaks on cellular/remote, security mess. Rejected. |
+| **Matrix / full chat server** | Massive overkill for a personal agent. |
+
+**Zero new Python dependencies is preserved:** the HTTP leg is stdlib
+`http.server` (a `ThreadingHTTPServer` in a daemon thread) bridged into the
+gateway's asyncio loop. The app side uses the OkHttp it already depends on
+(hand-rolled SSE reader — the format is trivial; `okhttp-eventsource` is an
+acceptable alternative if preferred).
+
+## 19.3 Shape
+
+```
+                        ┌──────────────────────── hermes gateway process ───────────────────────┐
+                        │  IrisAdapter                                                       │
+                        │    │  frames (same protocol.Frame objects)                            │
+                        │    ▼                                                                  │
+                        │  _broadcast_or_log ──► outbox.append(cursor) ──► push (if no live)    │
+                        │    │                │                                                 │
+                        │    ▼                ▼                                                 │
+                        │  WsServer (asyncio, :8790)   HttpServer (stdlib thread, :8791)        │
+                        │  primary: full protocol        fallback: POST /v1/frame,              │
+                        │  incl. binary media            GET /v1/events (SSE), /v1/poll         │
+                        └───────────────┬──────────────────────────────┬────────────────────────┘
+                                        │ WS (primary)                 │ HTTP (fallback)
+                              ┌─────────┴──────────────────────────────┴────────┐
+                              │  APP: transport state machine                   │
+                              │  WS up   → WS only (media works, lowest latency)│
+                              │  WS down → send via POST, receive via SSE/poll  │
+                              └─────────────────────────────────────────────────┘
+```
+
+**v1 scope**
+
+| Over HTTP | WS-only |
+| --- | --- |
+| All JSON request frames (`message.send`, `search`, `channel.*`, `commands.catalog`, `agent.stop`/`agent.steer`, …) via one generic endpoint | — |
+| All event/response frames via SSE (or long-poll) | — |
+| `sync` catch-up (same outbox, same cursor) | — |
+| Media upload + pull (`POST /v1/media`, `GET /v1/media/{id}`, v2 — §19.15) | — |
+
+With v2 the HTTP leg is feature-complete: media no longer needs the WS
+(the composer's attach button is enabled in `HTTP_FALLBACK` too). The WS
+binary media frames remain accepted for WS clients, but the app routes media
+over HTTP whenever the WS is down.
+
+## 19.4 Gateway: `gateway-plugin/http_server.py`
+
+New module, started/stopped by `IrisAdapter.connect()`/`disconnect()` next
+to the WS server.
+
+- **Server:** `http.server.ThreadingHTTPServer` + `BaseHTTPRequestHandler`,
+  run in a **daemon thread** (one thread per connection — fine at single-user
+  scale). The handler thread never touches adapter state directly; it bridges
+  into the gateway's asyncio loop with
+  `asyncio.run_coroutine_threadsafe(coro, loop)` (the loop is captured at
+  start).
+- **Config:** `IRIS_HTTP_PORT` (default **8791**), bind host `IRIS_HTTP_HOST`.
+  Optional TLS via `IRIS_HTTP_CERT`/`IRIS_HTTP_KEY`
+  (`ssl.SSLContext` on the server): plaintext on a trusted LAN by default,
+  TLS for remote/Tailscale setups.
+- **Bind failure is NON-fatal:** log a warning, disable the HTTP leg, show it
+  in the inspector.
+- Port-conflict lock: same flock pattern the WS uses (`host:port` key).
+
+### Endpoints
+
+| Endpoint | Auth | Purpose |
+| --- | --- | --- |
+| `GET /v1/health` | none | Liveness probe → `200 {"ok": true}`. Leaks nothing (no token echo, no device info). The app races this against the WS dial at startup. |
+| `POST /v1/frame` | Bearer token | Accept **any** JSON frame the WS accepts (except binary media). Body = one frame envelope (`04-wire-protocol.md`). Dispatched through the *same* adapter handlers as WS (`on_message_send`, `on_search`, …). |
+| `GET /v1/events?cursor=N` | Bearer token | **SSE** stream: catch-up from the outbox, then live frames (§19.5). |
+| `GET /v1/poll?cursor=N` | Bearer token | **Long-poll** fallback where SSE is blocked (§19.6). |
+| `POST /v1/media` | Bearer token | **Media upload** (v2, §19.15): whole file as the body, metadata in `X-Iris-Media-*` headers. |
+| `GET /v1/media/{media_id}` | Bearer token | **Media pull** (v2, §19.15): streams an outbound offer as the response body. |
+
+### Auth & limits
+
+- `Authorization: Bearer <token>`; verified with the existing constant-time
+  `verify_token()`; `401` on failure. Device identity via `X-Iris-Device`
+  header (same `device_id` the app uses for `hello`; same allowlist check).
+- Request body cap **64 KiB**, `Content-Type: application/json` enforced
+  (frames are small; media never travels here in v1).
+- Rate limit: token bucket per device, same parameters as the WS inbound
+  limit (`INBOUND_RATE_PER_S` / `INBOUND_BURST`); `429` on exceed.
+- No CORS headers (app clients only); unknown paths → `404`.
+
+## 19.5 SSE stream design (`GET /v1/events`)
+
+Wire format (standard SSE, three fields):
+
+```
+id: 1043
+event: frame
+data: {"v":1,"type":"message","chat_id":"default",...}
+
+: hb                      ← comment heartbeat every 15 s (keeps proxies alive)
+```
+
+- **`id` = outbox cursor.** This is what makes resume trivial: on reconnect
+  the client sends `Last-Event-ID` (or `?cursor=`) and the server replays
+  `outbox.replay(cursor)` — exactly the `sync` semantics, no new machinery.
+- **Stream open sequence:**
+  1. Replay outbox rows with `cursor > N` (bounded by the existing
+     `_REPLAY_LIMIT`), each as an `event: frame` with its `id`.
+  2. One `event: hello` carrying the `hello.ack` payload
+     (`server_caps`, `sync_cursor`, `last_pushed_cursor`, `channels`) — the
+     HTTP equivalent of pairing-ack; the app treats it like `hello.ack`.
+  3. Live frames as they are produced.
+- **Live fan-out hook:** in `adapter._broadcast_or_log`, after
+  `outbox.append()` returns the cursor, push `(cursor, frame_json)` into every
+  live HTTP subscriber's queue. The direct `status` broadcasts
+  (`ws_server.broadcast(protocol.status(...))`) get a second fan-out call
+  with `cursor = None` (SSE event without `id`).
+- **Thread model:** each SSE connection owns its handler thread, which blocks
+  on a cross-thread `queue.get()` (via `run_coroutine_threadsafe`, 30 s
+  timeout → write `: hb` and loop) and writes to `wfile` + `flush()`.
+- **Backpressure:** bounded queue (256). A subscriber that can't keep up is
+  dropped; the client reconnects with `Last-Event-ID` and catches up from the
+  outbox. Single-user scale makes this a non-event in practice.
+- **App-side reader:** hand-rolled over OkHttp's streaming `ResponseBody`
+  (read lines; `id:` / `event:` / `data:`; blank line = dispatch). ~100 lines,
+  no new dependency. Reconnect with exponential backoff + `Last-Event-ID`.
+
+## 19.6 Long-poll fallback (`GET /v1/poll`)
+
+For networks/proxies that buffer or kill SSE:
+
+- `GET /v1/poll?cursor=N` → server holds the request (asyncio waiter on the
+  subscriber queue) until a frame with `cursor > N` exists or **25 s** pass.
+- Response: `200 {"cursor": <new high-water>, "frames": [ ... ]}` (frames may
+  be empty on timeout; the app immediately re-polls with the new cursor).
+- The app switches to long-poll automatically after **two consecutive SSE
+  open failures**, and back to SSE on the next full (re)connect.
+
+## 19.7 Request/response over HTTP
+
+`POST /v1/frame` is accept-and-ack:
+
+- `202 {"ok": true}` — frame accepted and dispatched.
+- `4xx` with an **error frame as the JSON body** for validation rejections
+  (empty message, automation-channel read-only, rate limit → `429`, bad JSON
+  → `400`). These are the same `error` frames the WS path sends via
+  `send_to`; over HTTP they double as the HTTP response.
+- **Async responses** (user echo, `search` results, `channel.list`, the agent
+  reply, streaming updates) arrive on the **event stream** carrying the same
+  `id` — the app's existing request-id correlation works unchanged.
+- Consequence: `send_to(device_id, …)` error replies for HTTP-originated
+  requests are instead **broadcast** (single-user model; the SSE stream
+  delivers them). The dispatch refactor must tag the origin so WS-originated
+  requests keep point-to-point errors.
+
+## 19.8 Delivery counting & push interaction (critical)
+
+`_broadcast_or_log` fires push when `delivered == 0`. With the HTTP leg, a
+device reading SSE **is** a live subscriber:
+
+```python
+delivered = await self._ws_server.broadcast(frame)
+delivered += await self._http_server.fanout(frame, cursor)   # live SSE/poll subs
+...
+if delivered == 0:  # → outbox + push (unchanged)
+```
+
+If this is forgotten, every message would push *and* stream to a device that
+is already receiving it. Related bookkeeping:
+
+- `has_devices()` / `status` must count HTTP subscribers as connected devices
+  (mark the device's transport `ws` | `http` in the connection registry).
+- `last_pushed_cursor` / notification dedupe (`08-push.md` §8.8) is
+  unchanged — SSE-replayed frames carry the same `cursor` envelope as
+  `sync`-replayed ones, so the app's existing dedupe applies.
+
+## 19.9 App side
+
+New `iris/net/HttpGateway.kt` (OkHttp) + a transport state machine inside
+`GatewayClient` (or a thin `Transport` wrapper around it):
+
+- **API:** `health(timeoutMs)`, `postFrame(json): Result`,
+  `events(cursor, onFrame, onHello): Job` (SSE reader), `poll(cursor): Result`.
+- **State machine:**
+
+  | State | Send path | Receive path |
+  | --- | --- | --- |
+  | `WS_CONNECTED` | WS frame | WS |
+  | `HTTP_FALLBACK` | `POST /v1/frame` | SSE (or long-poll) |
+  | `CONNECTING` / `RECONNECTING` | queued/dropped as today | — |
+
+- **On WS loss:** switch to `HTTP_FALLBACK` **immediately** — open the SSE
+  stream (catch-up from the local cursor is free) and route sends to POST.
+  No backoff gate on the send path; the WS redial loop keeps running in the
+  background.
+- **At startup (the key UX fix):** race the WS dial against
+  `GET /v1/health` (2 s timeout). WS dial fails + health OK → straight into
+  `HTTP_FALLBACK`: the user can send in **< 1 s** after opening the app,
+  instead of waiting out dial timeouts and backoff.
+- **On WS reconnect:** close the SSE stream, resume WS-only (lowest latency,
+  media available again).
+- **Send path:** `sendMessage()` builds the same `message.send` frame JSON and
+  writes it to WS or POST depending on state. The `State.Connected` gate in
+  `ChatScreen.doSend()` becomes `state is Connected || state is HttpFallback`.
+- **Media:** works in `HTTP_FALLBACK` too (v2, §19.15) — uploads go via
+  `POST /v1/media`, pulls via `GET /v1/media/{id}`; the composer's attach
+  button is enabled in both connected states.
+- **UI:** status pill shows "connected" (WS) or "connected · http" (fallback)
+  — both green; the fallback is a healthy state, not an error.
+
+## 19.10 Security
+
+- Same token, constant-time verify, same bind host, same device allowlist as
+  the WS (`09-pairing-security.md` threat model unchanged — the HTTP leg adds
+  no new trust boundary, only a second door with the same lock).
+- `/v1/health` is unauthenticated by design (it answers "is the gateway
+  alive?"); it must not reflect tokens, device ids, or version strings.
+- TLS: optional, same cert pattern as the WS; plaintext is a LAN-only
+  default, identical to today's WS posture.
+- New attack-surface items to keep small: 64 KiB body cap, strict
+  content-type, per-device rate limit, no directory listing, no CORS.
+
+## 19.11 Failure modes
+
+| Failure | Behavior |
+| --- | --- |
+| Gateway fully down | Both legs dead → app shows offline; sends queue (app-side outbox, follow-up work) or are dropped with a visible "not sent" state. Push is the wake path when the gateway comes back (`08-push.md`). |
+| WS down, HTTP up | Normal `HTTP_FALLBACK` operation — text chat fully functional, media paused. |
+| SSE blocked by a proxy | Two failures → long-poll loop (§19.6). |
+| HTTP port firewalled, WS up | WS-only operation (today's behavior); `health` fails at startup, no fallback attempted. |
+| Both flaky | Existing WS backoff + SSE/poll backoff run independently; outbox + cursor keep both paths idempotent. |
+| Slow SSE subscriber | Dropped at queue overflow; reconnects with `Last-Event-ID`, catches up from outbox. |
+
+## 19.12 Testing
+
+- **Python** (`hermes-agent/tests/gateway/test_android_http.py`, run via
+  `scripts/run_tests.sh`):
+  - auth: bad/missing token → 401; allowlist rejection; constant-time verify reused.
+  - `POST /v1/frame`: valid `message.send` dispatches (agent turn fires);
+    empty text → 400 error frame; automation channel → 409/400; rate limit → 429.
+  - SSE: catch-up rows carry correct `id`s; `event: hello` present; a live
+    frame appended after connect arrives on the stream; `Last-Event-ID`
+    resume replays exactly the delta; heartbeat observed within 15 s.
+  - long-poll: returns on new frame; empty 200 at timeout with advanced cursor.
+  - **delivery counting:** frame with only an SSE subscriber → `delivered ≥ 1`
+    → **no push fired** (the critical regression test for §19.8).
+  - **media (v2, §19.15):** `POST /v1/media` happy path (201 ack + cached
+    entry), sha256 mismatch, oversize → 413, missing ref / bad kind → 400,
+    auth → 401, magic-byte reclassification; `GET /v1/media/{id}` happy path
+    (bytes + content-type), unknown id → 404, denied path → 404.
+- **Probe:** `ws_probe.py` gains an `--http` mode (health, post, SSE read with
+  assertion flags, per `tests/README.md`) + `--http-media FILE`
+  (v2: upload round-trip via `POST /v1/media`, exit 23 on rejection).
+- **Kotlin** (`:shared` commonTest): SSE parser (multi-line data, comments,
+  `Last-Event-ID` bookkeeping); transport state machine transitions (fake
+  clock: WS-loss → immediate fallback; startup race → fallback in < 1 s).
+- **E2E** (`e2e.py`, new scenario): point the app at a dead WS port with the
+  HTTP leg live → send a message → assert user echo + agent reply arrive via
+  SSE; timing assertion: send → user echo < 1 s on LAN. Live-verify on the
+  device via ADB (screenshot of the "connected · http" pill).
+
+## 19.13 Non-goals (v1) / future
+
+- ~~**Media over HTTP** (v2)~~ — **done** (§19.15): `POST /v1/media`
+  (whole-file body, sha256 contract per `07-media.md`) +
+  `GET /v1/media/{id}` for pull/playback. Attachments work in fallback mode.
+- **App-side send outbox** (companion work, separate doc): queue sends locally
+  when *both* legs are down; drains over whichever leg recovers. This doc
+  removes the 2–20 s wait; the outbox removes the last "gateway was down for
+  30 s" data-loss case.
+- **QUIC / WebTransport** if handover flakiness persists after this + the
+  outbox (connection migration would make the fallback rare).
+- Per-device tokens (`16-open-questions.md` #3) apply to both legs identically
+  when implemented.
+
+## 19.15 Media over HTTP (v2)
+
+The last WS-only feature, closed out so the HTTP leg is feature-complete.
+Same contracts as `07-media.md` — only the transport changes.
+
+### Upload — `POST /v1/media`
+
+One request per file (no chunked/resumable protocol — HTTP handles the
+body; single-user scale makes resume unnecessary):
+
+```
+POST /v1/media
+Authorization: Bearer <token>
+X-Iris-Device: <device_id>
+X-Iris-Media-Ref: up_123456          # app-chosen ref (mu_*/up_*), ≤ 64 chars
+X-Iris-Media-Kind: image|audio|video|document|voice
+X-Iris-Media-Filename: photo.jpg
+X-Iris-Media-Sha256: <64 hex>        # precomputed (headers precede the body)
+Content-Type: <media mime>           # doubles as the declared MIME
+Content-Length: <size>
+
+<raw file bytes>
+```
+
+- **Response:** `201` with the `media.upload.ack` frame as the body
+  (`{ok, media_ref}`); validation failures return the `error` frame as the
+  4xx body with the same codes as the WS path (`media_too_large` → 413,
+  `unsupported` → 400, `internal` → 500, `not_found` → 404).
+- **Server flow:** the body is streamed to a temp file in 256 KiB reads
+  (bounded RAM, same `UploadSession` as the WS path), then
+  `complete_upload` verifies size + sha256, re-sniffs the kind from magic
+  bytes (the client's declared kind is not trusted), and caches via the
+  hermes `cache_*_from_bytes` helpers. Runs entirely on the handler thread
+  — no asyncio bridge (plain file IO).
+- **Limits:** `Content-Length` is checked against `max_upload_bytes`
+  *before* reading the body (early 413); the 64 KiB `/v1/frame` body cap
+  does not apply. Same per-device rate limit as the other endpoints.
+- **Abort:** a client that disconnects mid-body leaves a short read → the
+  upload session (temp file) is discarded; nothing is cached.
+- The ref then travels in `message.send`'s `media_refs` exactly as on the WS
+  path (single-use, resolved to `MessageEvent.media_urls`).
+
+### Pull — `GET /v1/media/{media_id}`
+
+- `media.offer` is a plain JSON event frame — it arrives on the SSE stream
+  unchanged; only the byte transfer moves to HTTP.
+- **Response:** `200` with the file as the body,
+  `Content-Type: <mime>`, `Content-Length: <size>`,
+  `Content-Disposition: attachment; filename="<name>"`. Unknown id or a
+  path that fails delivery validation → `404` with the `error` frame
+  (`not_found`) — the delivery-path check is re-run at pull time, exactly
+  as the WS `media.pull` handler does.
+- The app streams the body into its media cache (same
+  `MediaCache.openWriter` path as the WS pull); playback is unchanged
+  (`07-media.md` §7.4).
+
+### What stays WS-only
+
+Nothing feature-wise. The WS binary media frames (`media.upload.start/end`,
+`media.pull` + binary chunks) remain accepted for WS clients, and
+`POST /v1/frame` still rejects those frame types (they have HTTP endpoint
+equivalents now, not a WS dependency).
+
+## 19.14 Effort & change list
+
+| Slice | Files | Est. |
+| --- | --- | --- |
+| Gateway leg | new `gateway-plugin/http_server.py` (~450 lines); `adapter.py` hooks (start/stop, fan-out in `_broadcast_or_log` + status path, delivery counting, dispatch-origin tag); `protocol.py` unchanged | 2–3 d |
+| App leg | new `app/shared/.../net/HttpGateway.kt` (SSE reader + poll); `GatewayClient.kt` state machine + startup race; `ChatScreen.kt` gate + status pill; composer media-disable in fallback | 2–3 d |
+| Tests + e2e + docs | per §19.12; `frames.schema.json` unchanged (no new frame types); `09-pairing-security.md` + `13-testing.md` cross-references | 1–2 d |
+
+Total: **~1 week**, each slice independently shippable (gateway leg is
+inert until the app uses it; app leg degrades to today's behavior if the
+HTTP port is closed).

docs/20-qr-pairing.md

@@ -0,0 +1,322 @@
+# 20 — QR Pairing (terminal QR + in-app scanner)
+
+**Status: implemented (M8, 2026-08-22).**
+
+Closes gap #12 in `09-pairing-security.md` ("in-app QR scanner") and implements
+the QR branch of the §9.2 pairing flow, which the docs already promise but the
+code never delivered: today `interactive_setup` prints the pairing URL as
+plain text only, and the app has no `iris://pair` parser at all.
+
+Two halves, independent and shippable separately:
+
+- **A — Gateway:** `hermes gateway setup` renders a scannable QR in the
+  terminal encoding `iris://pair?host=…&port=…&token=…`. **Zero new Python
+  dependencies** (pure stdlib encoder).
+- **B — App:** a "Scan QR" button on the Android Connect screen (CameraX +
+  ML Kit, on-device, no Play services) that pre-fills URL + token. Not added
+  to desktop. Plus an `iris://pair` deep link so *any* scanner (system camera
+  app, other phones) can route the QR into the app.
+
+---
+
+## 20.1 Current state (what exists today)
+
+| Piece | State | Location |
+| ------- | ------- | ---------- |
+| QR payload format | ✅ implemented | `gateway-plugin/pairing.py` → `qr_payload(host, port, token, secure)` → `iris://pair?host=<lan-ip>&port=8791&secure=0&token=<64-hex>` |
+| Terminal QR rendering | ❌ missing | `gateway-plugin/adapter.py` → `interactive_setup()` prints the URL text only |
+| App `iris://pair` parser | ❌ missing | app has manual URL + token entry only (`ConnectScreen`) |
+| In-app camera scan | ❌ missing | no camera deps anywhere in `app/` |
+| `iris://` deep link | ⚠️ partial | manifest handles `iris://chat/<id>` only (`androidApp/.../AndroidManifest.xml`, `MainActivity.handleDeepLink`) |
+| QR libs in hermes venv | ❌ absent | `qrcode`/`segno` not installed; `Pillow` is a hermes core dep but only renders images — the QR *matrix* algorithm is still needed either way |
+
+Payload size: `iris://pair?host=192.168.x.x&port=8791&secure=0&token=<64 hex>`
+≈ **118 bytes** → QR version **7 at EC level M** (capacity 122 bytes) or v6 at
+L (134). The encoder must therefore support at least versions 1–8; we target
+1–10.
+
+---
+
+## 20.2 Part A — terminal QR in `interactive_setup`
+
+### A1. Pure-stdlib QR encoder — `gateway-plugin/qr.py` (new file)
+
+A self-contained ISO/IEC 18004 encoder, **stdlib only** (no `qrcode`, no
+`segno`, no Pillow). Scope is deliberately minimal — we only ever encode
+ASCII pairing URLs:
+
+- **Mode:** byte mode only (no alphanumeric/numeric/kanji paths).
+- **Error correction:** level **M** (15 %); auto-fallback to **L** if the
+  payload doesn't fit at M within the version cap.
+- **Versions:** 1–10, auto-selected (smallest version whose capacity fits).
+  Payloads that don't fit v10-L raise `QrTooLongError` (caller falls back to
+  text-only output — see A3).
+- **Components** (all well-known, spec-stable algorithms):
+  1. Data encoding: mode indicator `0100`, 8-bit char count (8 bits for
+     v1–9, 16 bits for v10), payload bytes, terminator, padding
+     (`0xEC`/`0x11` alternation).
+  2. Reed–Solomon error correction over GF(256), generator polynomial
+     `0x11D`, per (version, EC level) block structure from the spec tables.
+  3. Matrix placement: finder patterns + separators, timing patterns,
+     alignment patterns (v2+), dark module, format info (BCH(15,5)),
+     version info (v7+, BCH(18,6)), zig-zag data placement.
+  4. Masking: all 8 masks, ISO penalty scoring (N1–N4), pick lowest.
+- **Public API:**
+
+  ```python
+  def qr_matrix(data: str) -> list[list[bool]]:
+      """Encode *data* (ASCII) into a module matrix (True = dark).
+      Includes the 4-module quiet zone. Raises QrTooLongError."""
+  ```
+
+  ~250–350 lines including the spec tables. No I/O, no globals, fully
+  unit-testable.
+
+### A2. Terminal renderer — `qr.py`
+
+```python
+def render_qr(data: str) -> str:
+    """Render *data* as a terminal QR using Unicode half-blocks (▀).
+    Returns '' (not an exception) when the payload is too long."""
+```
+
+- Pair consecutive module rows into one character row: both dark → `█`,
+  top dark → `▀`, bottom dark → `▄`, both light → space. (Matrix height
+  including quiet zone is always even: `2·(17+4v)+8`.)
+- Output is a single string of `\n`-joined lines; the caller prints it.
+- No ANSI colors, no cursor tricks — must survive `less`, log files, and
+  copy-paste.
+
+### A3. Integration — `adapter.py:interactive_setup()`
+
+After the existing "Pairing URL / Server URL" lines:
+
+```python
+qr = render_qr(qr_payload(host, port, token))
+if qr:
+    print_info("Scan with the Iris app (Connect → Scan QR) or any camera app:")
+    print(qr)
+else:
+    print_warning("QR too large to render; use the pairing URL above.")
+```
+
+- The **URL text lines stay** — the QR is a convenience, not a replacement
+  (terminals without UTF-8 still work, and the text is copy-pasteable).
+- Printed on every setup run (new *and* existing token), consistent with the
+  URL lines which already print the token in cleartext.
+- **Security note:** no new exposure — the token is already printed in the
+  pairing URL line today; the QR is the same bytes in a different encoding,
+  on the same operator-only stdout. (Gap #5 in the §9.7 table already
+  documents the stdout token print.)
+
+### A4. Tests — `hermes-agent/tests/gateway/test_android.py`
+
+The test file is a thin mirror importing the **live `gateway-plugin/`
+package**, so new tests land there:
+
+1. **Fixed test vectors** (guard against silent algorithm drift): at least
+   two known-good (data → matrix) pairs from public QR test vectors
+   (e.g. the ISO 18004 annex examples / the classic `KARAT` v2-L vector).
+   Assert the full matrix, not just dimensions.
+2. **Round-trip via payload:** `qr_matrix(qr_payload(h, p, t))` has the
+   expected version/size for a 64-hex token (`17 + 4·7 = 45` modules at
+   v7-M, +8 quiet zone).
+3. **Renderer shape:** every line equal length, height = half of matrix
+   height, quiet zone renders as blank border, only the 4 block chars +
+   space appear.
+4. **`QrTooLongError` / `render_qr` → `""`** for a payload beyond v10-L.
+5. **`interactive_setup` smoke:** with sandboxed HERMES_HOME (conftest
+   already does this), capture stdout and assert the QR block appears after
+   the pairing URL line.
+
+Run: `cd hermes-agent && scripts/run_tests.sh tests/gateway/test_android.py`.
+
+---
+
+## 20.3 Part B — in-app scanner (Android only)
+
+### B1. Dependencies — `app/shared/build.gradle.kts`, `androidMain.dependencies` only
+
+| Dependency | Why |
+| ------------ | ----- |
+| `androidx.camera:camera-camera2` | Camera access (CameraX) |
+| `androidx.camera:camera-lifecycle` | Lifecycle-aware binding |
+| `androidx.camera:camera-view` | `PreviewView` for the scan surface |
+| `com.google.mlkit:barcode-scanning` | On-device QR decode; **no Google Play services required** (self-contained model) |
+
+- Chosen over `zxing-android-embedded` (decided 2026-07-20): ML Kit has
+  better accuracy/latency, is maintained by Google, and works fully
+  on-device without GMS.
+- These go in **`androidMain`** only — the no-new-dep rule covers
+  `gateway-plugin/`, and the app already carries OkHttp/SQLDelight/KCEF/etc.
+  Desktop is untouched.
+- `minSdk 29` is fine for all four (ML Kit barcode needs 21+).
+- Versions go in the existing version catalog / `composeVersion`-style
+  constants at the top of the build file (follow the current pattern).
+
+### B2. Scanner activity — `shared/src/androidMain/kotlin/iris/platform/QrScanActivity.kt` (new)
+
+A minimal `ComponentActivity` (not a Fragment, no nav graph):
+
+- Layout: full-screen `PreviewView` + overlay hint text ("Point at the QR
+  code") + close button.
+- `ImageAnalysis` (STRATEGY_LATEST, YUV_420_888) →
+  `BarcodeScannerOptions(FORMAT_QR_CODE)` → first result →
+  `setResult(RESULT_OK, Intent().putExtra("iris.qr.text", raw))` → finish.
+- **Runtime permission:** request `CAMERA` on launch; on denial show a
+  message + close (the Connect screen still has manual entry).
+- Registered in `shared/src/androidMain/AndroidManifest.xml` (or the
+  androidApp manifest — follow where `NtfyListenerService` is declared)
+  with `android:exported="false"`, `android:theme` reusing the app theme.
+- Manifest additions (androidApp manifest):
+
+  ```xml
+  <uses-permission android:name="android.permission.CAMERA" />
+  <uses-feature android:name="android.hardware.camera" android:required="false" />
+  ```
+
+  `required="false"` so the app stays installable on camera-less devices
+  (the button then just reports "no camera").
+
+### B3. Platform hook — `expect`/`actual`
+
+`shared/src/commonMain/kotlin/iris/platform/PlatformQr.kt` (new):
+
+```kotlin
+/** Launch the QR scanner. [onResult] gets the decoded text, or null when
+ *  the user cancelled / no camera / permission denied. Desktop: no-op. */
+expect fun scanQrCode(onResult: (String?) -> Unit)
+```
+
+- **androidMain actual:** `ActivityResultLauncher` (from the Compose
+  `LocalContext`) starting `QrScanActivity`; maps `RESULT_OK` → text,
+  everything else → `null`.
+- **desktopMain actual:** `onResult(null)` immediately (the button is
+  hidden on desktop anyway — see B4; the no-op keeps the `expect` total).
+
+### B4. Connect screen button — `ConnectScreen.kt`
+
+- New **"Scan QR"** `Button` below the token field, rendered only when
+  `!isDesktop` (`iris.platform.isDesktop` already exists).
+- On tap: `scanQrCode { raw -> … }`; on non-null `raw`:
+  - `PairLink.parse(raw)` (B5) → pre-fill `url` and `token` state, clear
+    error, and **do not auto-connect** — the user still taps
+    "Test & Connect" (pairing stays an explicit act, per §10.8).
+  - Parse failure → set `error` to "Not a pairing QR code" (don't echo the
+    raw payload — it may contain someone else's token).
+- On `null` (cancel/denied): no-op, no error.
+
+### B5. Pair-link parser — `shared/src/commonMain/kotlin/iris/util/PairLink.kt` (new)
+
+```kotlin
+data class PairLink(val url: String, val token: String)
+
+object PairLink {
+    /** Parse `iris://pair?host=…&port=…&secure=…&token=…` → PairLink.
+     *  Returns null on any malformation. */
+    fun parse(raw: String): PairLink?
+}
+```
+
+- Accepts exactly scheme `iris`, host `pair` (case-insensitive scheme).
+- Required: `host` (non-empty), `token` (non-empty). `port` defaults to
+  `8791` (the HTTP default, `docs/19`); `secure` defaults to `0`.
+- Builds `url` as `http(s)://<host>:<port>`; validates port 1–65535.
+- URL-decodes `host`/`token` (the Python side `quote()`s them).
+- Pure function, no platform imports → **unit-tested in `jvmTest`**
+  (`:shared:testAndroidHostTest` / `:shared:desktopTest` both run it):
+  valid link, missing token, bad port, wrong scheme, wrong host,
+  percent-encoded host, secure=1 → https, default port.
+
+### B6. `iris://pair` deep link (system-scanner fallback)
+
+So a QR scanned by *any* app (phone's built-in scanner, a friend's phone)
+lands in Iris:
+
+- Manifest: extend the existing `VIEW` intent-filter block (or add a
+  sibling) with `<data android:scheme="iris" android:host="pair" />`.
+- `MainActivity.handleDeepLink`: on `iris://pair` → `PairLink.parse(uri)` →
+  stash into a `mutableStateOf<PairLink?>` passed into `IrisApp` →
+  `ConnectScreen` receives it as `prefillUrl`/`prefillToken` (the params
+  already exist). If the app is already connected, ignore (or surface in
+  Settings later — out of scope).
+- This reuses B5's parser; add one test for the URI shape Android delivers.
+
+---
+
+## 20.4 Part C — doc updates (with the implementation)
+
+| Doc | Change |
+| ----- | -------- |
+| `09-pairing-security.md` | Gap #12 → **implemented** (fix the stale `adapter.py:648-654` reference while at it); §9.2 QR branch no longer aspirational |
+| `10-android-app.md` §10.8 | "or scan QR" becomes real: scanner button + deep link, camera permission |
+| `14-milestones.md` | New **M8 — QR pairing** section (acceptance criteria below) |
+| `16-open-questions.md` | Record decision: ML Kit over zxing; pure-stdlib encoder over vendoring `segno` |
+| `README.md` | Reading-order table: add row 20 |
+
+---
+
+## 20.5 Work breakdown & sequencing
+
+Ordered so each step is independently verifiable; A and B can be
+interleaved (different languages, no shared surface).
+
+| # | Task | Verify |
+| --- | ------ | -------- |
+| 1 | `qr.py` encoder + renderer (A1/A2) | new unit tests green (A4.1–4.4) |
+| 2 | `interactive_setup` integration (A3) | A4.5 + manual: `hermes gateway setup` in a real terminal shows a scannable QR (scan with the phone's *system* camera app as the decoder oracle) |
+| 3 | `PairLink` parser + jvmTest (B5) | `./gradlew :shared:testAndroidHostTest` |
+| 4 | Deps + manifest + `QrScanActivity` (B1/B2) | `:androidApp:assembleDebug` |
+| 5 | `PlatformQr` expect/actual + Connect button (B3/B4) | `:androidApp:assembleDebug` + `:desktopApp:run` (button absent, no crash) |
+| 6 | `iris://pair` deep link (B6) | ADB: `adb shell am start -a android.intent.action.VIEW -d "iris://pair?host=…&port=…&token=…"` → Connect screen pre-filled |
+| 7 | Doc updates (Part C) | — |
+
+**On-device E2E (final gate, per `13-testing.md` ADB workflow):**
+
+1. `hermes gateway setup` on the gateway host → QR in terminal.
+2. Phone: `adb shell am start -n dev.iris.app/.MainActivity` → Connect →
+   **Scan QR** → grant camera → point at the terminal (screenshot the QR
+   onto a second screen if needed; the reference device is API 29 —
+   verify CameraX works on the MIX 2S in step 4 before building the rest).
+3. Fields pre-filled → **Test & Connect** → chat screen.
+4. Repeat via deep link (step 6 command) with a *different* token.
+5. Negative: scan a non-pairing QR (e.g. a website) → "Not a pairing QR
+   code", fields untouched.
+
+---
+
+## 20.6 Acceptance criteria (M8)
+
+- [ ] `hermes gateway setup` prints a QR that a stock Android camera app
+      decodes to exactly `qr_payload(host, port, token)`.
+- [ ] QR encoder: fixed test vectors + size/round-trip tests green;
+      **zero** new entries in the plugin's import surface (stdlib only —
+      verifiable by `ruff`/import scan).
+- [ ] Android: Connect screen shows **Scan QR** (hidden on desktop);
+      scanning the setup QR pre-fills URL + token; "Test & Connect" pairs.
+- [ ] Camera permission denied → graceful message, manual entry still works.
+- [ ] `iris://pair` deep link pre-fills the Connect screen (ADB-verified).
+- [ ] `PairLink.parse` unit tests cover the matrix in B5.
+- [ ] Full Python suite green: `scripts/run_tests.sh` (no args).
+- [ ] Docs updated per Part C; gap #12 closed.
+
+## 20.7 Risks & mitigations
+
+| Risk | Mitigation |
+| ------ | ------------ |
+| Hand-rolled QR encoder has a subtle bug | Fixed spec test vectors (A4.1) + the system-camera-app oracle in the E2E gate; scope locked to byte mode / v1–10 so the surface stays small |
+| Terminal without UTF-8 mangles the QR | URL text lines remain the primary path; QR is additive |
+| CameraX quirks on API 29 (MIX 2S) | Build the scanner activity first (task 4) and verify on-device before wiring the UI |
+| ML Kit model size (~4 MB) | Bundled in the APK, on-device, no runtime download — acceptable for this app's footprint |
+| Token in QR scanned by a bystander's phone | Same trust domain as the token already printed in the terminal; LAN pairing is operator-supervised by design (§9.2). Deep link only pre-fills — it never auto-connects |
+| `secure=1` (WSS) URLs | Parser already handles `secure` → `https://`; QR payload unchanged |
+
+## 20.8 Explicit non-goals
+
+- **QR display in the app** (showing a QR for other devices to scan) —
+  single-device pairing today; revisit if multi-device lands.
+- **`hermes iris pair` stretch CLI** (re-issue token + new QR,
+  `09-pairing-security.md` §9.2 line 48) — separate backlog item.
+- **WSS cert pinning** (gap #6) — orthogonal; QR carries `secure=1`
+  already, pinning is app-side.
+- **iOS scanner** — no iOS target (per `00-overview.md`).

docs/README.md

@@ -8,6 +8,7 @@ This folder is the single source of truth for *what to build and why*. Read it
 top-to-bottom once, then use the numbered docs as a lookup while implementing.
 
 > ⚠️ **READ FIRST — two hard rules**
+>
 > 1. **`hermes-agent/` (sibling of this folder) is a read-only research
 >    reference. It must NEVER be committed, pushed, or shipped.** It is
 >    git-ignored at the repo root. We only *install* our plugin into a live
@@ -17,6 +18,11 @@ top-to-bottom once, then use the numbered docs as a lookup while implementing.
 
 ---
 
+## User-facing guides
+
+- [`install.md`](install.md) — **install the gateway + connect the app** (non-technical walkthrough, all options, TLS, push).
+- [`setup.md`](setup.md) — moved; pointer to `install.md`.
+
 ## Reading order
 
 | # | File | When to read |
@@ -29,9 +35,9 @@ top-to-bottom once, then use the numbered docs as a lookup while implementing.
 | 5 | [`05-streaming.md`](05-streaming.md) | Streaming / reasoning / tools / intermediate. |
 | 6 | [`06-channels-cron-search.md`](06-channels-cron-search.md) | Channels, threads, cron delivery, search. |
 | 7 | [`07-media.md`](07-media.md) | Media upload/download + playback. |
-| 8 | [`08-push.md`](08-push.md) | Push (FCM + ntfy), outbox, sync. |
+| 8 | [`08-push.md`](08-push.md) | Push (ntfy default + FCM optional), outbox, sync. |
 | 9 | [`09-pairing-security.md`](09-pairing-security.md) | Pairing, auth, security model. |
-| 10 | [`10-android-app.md`](10-android-app.md) | When building the Android app. |
+| 10 | [`10-android-app.md`](10-android-app.md) | When building the Iris app (Android). |
 | 11 | [`11-desktop-app.md`](11-desktop-app.md) | When building the Desktop app. |
 | 12 | [`12-toolchain.md`](12-toolchain.md) | First time on a machine (JDK/SDK/uv/Firebase). |
 | 13 | [`13-testing.md`](13-testing.md) | Writing tests + on-device ADB workflow. |
@@ -39,24 +45,28 @@ top-to-bottom once, then use the numbered docs as a lookup while implementing.
 | 15 | [`15-hermes-reference.md`](15-hermes-reference.md) | **Cheat-sheet** of hermes-agent source to read. |
 | 16 | [`16-open-questions.md`](16-open-questions.md) | Decisions made + open items. |
 | 17 | [`17-future-control-surface.md`](17-future-control-surface.md) | **Backlog** — what the app could control beyond chat (cron, kanban, models, …). |
+| 19 | [`19-http-fallback-transport.md`](19-http-fallback-transport.md) | **Design** — HTTP fallback leg (POST + SSE/long-poll) so the app can send/receive when the WS is down. |
+| 20 | [`20-qr-pairing.md`](20-qr-pairing.md) | Terminal QR at `gateway setup` + in-app QR scanner (Android) + `iris://pair` deep link. |
 
 Machine-readable / diagrams:
+
 - [`protocol/frames.schema.json`](protocol/frames.schema.json) — wire-frame schema.
 - [`diagrams/architecture.mmd`](diagrams/architecture.mmd) — mermaid architecture.
+- [`playstore-listing.md`](playstore-listing.md) — Play Store listing text (incl. the FCM/ntfy privacy note).
 
 ---
 
 ## The three deliverables (one monorepo)
 
-1. **`gateway-plugin/`** — a Python hermes **platform plugin** named `android`.
+1. **`gateway-plugin/`** — a Python hermes **platform plugin** named `iris`.
    Runs inside the `hermes gateway` process. Opens a WebSocket server the apps
    connect to. Implements the full `BasePlatformAdapter` contract. **Zero new
    Python dependencies, zero hermes-core changes.**
 2. **`app/androidApp`** — native Kotlin + Jetpack Compose client.
 3. **`app/desktopApp`** — Kotlin + Compose Multiplatform client that *shares*
-   the Android app's code and is "tweaked" for a big screen.
+   the Iris app's code and is "tweaked" for a big screen.
 
-The Android and Desktop clients live in **one Compose Multiplatform Gradle
+The Iris Android and Desktop clients live in **one Compose Multiplatform Gradle
 project** (`app/`) with a shared KMP module (`app/shared`).
 
 ---

docs/diagrams/architecture.mmd

@@ -6,8 +6,8 @@ flowchart TB
             AGENT["Agent core<br/>(run_agent.py)"]
             SESS["Sessions<br/>(SQLite + FTS5)"]
             CRON["Cron scheduler"]
-            subgraph PLUGIN["android PLATFORM PLUGIN"]
-                ADAPTER["AndroidAdapter<br/>(BasePlatformAdapter)"]
+            subgraph PLUGIN["IRIS PLATFORM PLUGIN"]
+                ADAPTER["IrisAdapter<br/>(BasePlatformAdapter)"]
                 OUTBOX["Outbox (SQLite)<br/>+ sync cursor"]
                 PUSH["push.py<br/>FcmBackend / NtfyBackend"]
                 MEDIA["media.py<br/>cache + chunk stream"]
@@ -17,7 +17,7 @@ flowchart TB
             WSS["WebSocket SERVER<br/>(websockets) ws://host:8790/ws"]
         end
         AGENT -->|legacy stream callbacks| ADAPTER
-        CRON -->|deliver=android:chat:thread| ADAPTER
+        CRON -->|deliver=iris:chat:thread| ADAPTER
         ADAPTER <--> WSS
         ADAPTER <--> OUTBOX
         ADAPTER <--> PUSH
@@ -33,7 +33,7 @@ flowchart TB
     end
 
     subgraph DEVICES["Clients"]
-        PHONE["ANDROID APP<br/>(Kotlin / Compose)<br/>WS client + ExoPlayer + FCM"]
+        PHONE["IRIS APP (ANDROID)<br/>(Kotlin / Compose)<br/>WS client + ExoPlayer + FCM"]
         DESKTOP["DESKTOP APP<br/>(Compose Multiplatform)<br/>WS client + tray + desktop player"]
     end
 

docs/install.md

@@ -0,0 +1,255 @@
+# Install — Gateway & App
+
+A step-by-step guide for getting **Iris** (the Android / Desktop app) talking
+to your **hermes gateway**. Written for people who just want to *use* it, not
+build it. If you only want the short version, the [README](../README.md) has
+the three commands that matter.
+
+The whole setup has two halves:
+
+1. **The gateway** — a small plugin that runs *inside* your existing hermes
+   install and opens a door for the app to connect through.
+2. **The app** — on your phone or desktop, where you enter the gateway's
+   address and a pairing token.
+
+> **Old guides?** Earlier versions of Iris used a WebSocket on port `8790`
+> (`ws://…/ws`). The transport is now plain HTTP on port **`8791`**
+> (see [`19-http-fallback-transport.md`](19-http-fallback-transport.md)).
+> The app still accepts old `ws://` URLs and converts them automatically, but
+> new setups should use the `http://` URL printed by `hermes gateway setup`.
+
+---
+
+## What you need
+
+| Where | What |
+| --- | --- |
+| Gateway host (any always-on computer: home server, Raspberry Pi, laptop) | [hermes-agent](https://github.com/NousResearch/hermes-agent) installed with its venv (`cd hermes-agent && uv sync`) |
+| Phone / desktop | Android 8+ or Linux / macOS / Windows |
+| Only if you build the app yourself | JDK 17 (+ Android SDK for Android) — see [`12-toolchain.md`](12-toolchain.md) |
+
+---
+
+## Part 1 — Install the gateway plugin (one-time)
+
+Iris is a regular hermes **platform plugin**, so it installs with the normal
+plugin command. This repo is a *monorepo* (the plugin lives in the
+`gateway-plugin/` subfolder, next to the app), so you point the installer at
+that subfolder with a `#subfolder` suffix:
+
+```bash
+hermes plugins install git@gitea.zephyre.one:ARIA/iris_x_hermes.git#gateway-plugin
+```
+
+That's it. The installer clones the repo, copies just the `gateway-plugin/`
+folder into `~/.hermes/plugins/`, and asks whether to enable it now (say
+**yes**).
+
+Notes:
+
+- Any git URL works with the `#gateway-plugin` suffix — e.g.
+  `https://gitea.zephyre.one/ARIA/iris_x_hermes.git#gateway-plugin` if you
+  prefer HTTPS.
+- **Developing from a checkout?** Skip the install and symlink instead — the
+  plugin then always tracks your working tree:
+
+  ```bash
+  mkdir -p ~/.hermes/plugins
+  ln -s "$PWD/gateway-plugin" ~/.hermes/plugins/iris
+  ```
+
+- Check it was picked up:
+
+  ```bash
+  hermes gateway status        # the Iris platform should be listed
+  ```
+
+## Part 2 — Gateway setup (one-time)
+
+Run the interactive setup:
+
+```bash
+hermes gateway setup
+```
+
+It walks you through five things:
+
+| Prompt | What it means | Default |
+| --- | --- | --- |
+| **Iris pairing token** | A long random secret the app must present to connect. Generated for you; stored in `~/.hermes/.env` as `IRIS_TOKEN`. **It is printed only once** — write it down. | auto-generated |
+| **HTTP host** | Which network address the gateway listens on. `127.0.0.1` = only this machine. For a phone on your home network, use the machine's **LAN IP** (e.g. `192.168.1.10`). | `127.0.0.1` |
+| **Port** | The port the app connects to. | `8791` |
+| **Push backend** | How offline notifications are delivered: `ntfy` (default, stays on your own infrastructure) or `fcm` (Google). See [Part 5](#part-5--push-notifications-optional). | `ntfy` |
+| **TLS** | Only asked when no certificate is configured yet: generates a **self-signed** certificate + key under `~/.hermes/iris/` and stores the paths in `.env` (`IRIS_HTTP_CERT` / `IRIS_HTTP_KEY`), so the gateway serves `https://`. The app asks you to confirm the printed SHA-256 fingerprint once (like an SSH host key). | No (Yes if you bound `0.0.0.0`) |
+
+When it finishes it prints two things you need for the app:
+
+- **Server URL** — e.g. `http://192.168.1.10:8791`
+- **Pairing QR + URL** — an `iris://pair?…` string with a scannable QR code
+
+Then start the gateway:
+
+```bash
+hermes gateway               # (or: hermes gateway restart after changes)
+```
+
+## Part 3 — Install the app
+
+### Android
+
+Build a debug APK on any machine with JDK 17 + the Android SDK:
+
+```bash
+cd app
+./gradlew :androidApp:assembleDebug
+# → app/androidApp/build/outputs/apk/debug/androidApp-debug.apk
+```
+
+Copy the APK to the phone (cable, LAN share, or any file transfer) and open
+it — Android will ask to allow installs from unknown sources.
+
+*Shortcut for developers with a USB-connected phone:*
+`./gradlew :androidApp:installDebug` installs it directly.
+
+### Desktop
+
+```bash
+cd app
+./gradlew :desktopApp:jpackage    # → app/desktopApp/build/…/ (native app, JRE bundled)
+```
+
+On Linux the launcher may print a `pure virtual method called` warning —
+it's a known, harmless jpackage bug (JDK-8348560); the app works fine.
+
+## Part 4 — Connect the app
+
+Open the app. The first screen is **Connect**. You need the **Server URL**
+and the **pairing token** from Part 2.
+
+### Option A — Same home network (no encryption, simplest)
+
+Works out of the box on a trusted home network:
+
+1. **Server URL:** the one printed by `hermes gateway setup`,
+   e.g. `http://192.168.1.10:8791`.
+   - On a phone, use the gateway's **LAN IP** — not `127.0.0.1` (that only
+     means "this device" and won't reach your server).
+   - If you set the host to `127.0.0.1` during setup, re-run
+     `hermes gateway setup` and enter the LAN IP instead.
+2. **Pairing token:** the long token from the setup output (or
+   `grep IRIS_TOKEN ~/.hermes/.env` on the gateway host).
+3. **Test & Connect.**
+
+> **Android shortcut:** the Connect screen has a **Scan QR** button — point
+> the camera at the QR printed by `hermes gateway setup` and the URL + token
+> fill themselves in. (Desktop has no camera, so it's manual entry.)
+
+### Option B — Encrypted (TLS) — recommended for anything beyond your LAN
+
+Plain `http://` is fine on a home network you trust, but for remote access
+you want the traffic encrypted. The gateway can serve `https://` itself:
+
+1. Create a certificate + key. Three flavors:
+   - **Generated by setup (easiest)**: `hermes gateway setup` offers to
+     generate a **self-signed** certificate for you (see the TLS prompt in
+     [Part 2](#part-2--gateway-setup-one-time)). It writes
+     `~/.hermes/iris/iris.crt` + `iris.key`, stores the paths in `.env`, and
+     prints the SHA-256 fingerprint the app will ask you to confirm.
+   - **CA-signed** (Let's Encrypt, or your own CA): works out of the box.
+   - **Self-signed manually** (e.g. `openssl req -x509 -newkey rsa:2048
+     -nodes -keyout iris.key -out iris.crt -days 3650 -subj "/CN=iris"
+     -addext "subjectAltName=DNS:iris.example.com,IP:192.168.1.10"`):
+     the certificate **must** carry a SAN entry matching the host you'll
+     type in the app.
+2. Put the paths in `~/.hermes/.env` on the gateway host:
+
+   ```ini
+   IRIS_HTTP_CERT=/path/to/iris.crt
+   IRIS_HTTP_KEY=/path/to/iris.key
+   ```
+
+3. `hermes gateway restart`.
+4. In the app, use the **`https://`** URL, e.g. `https://iris.example.com:8791`.
+
+**Self-signed certificates:** the app won't trust them automatically (by
+design). On first connect it shows the certificate's SHA-256 fingerprint and
+asks you to confirm it — exactly like an SSH host key. Compare the
+fingerprint with the one on the gateway host
+(`openssl x509 -fingerprint -sha256 -noout -in iris.crt`), confirm, and it's
+pinned in the app's secure storage from then on. If the certificate ever
+changes, you'll be asked to confirm again. No system trust-store installs
+needed.
+
+### Reaching the gateway from outside your home network
+
+Pick one (in order of preference):
+
+- **Tailscale / WireGuard (recommended).** Install Tailscale on the gateway
+  host; the app connects to the stable tailnet IP, e.g.
+  `http://100.x.y.z:8791`. No public exposure at all — and since the traffic
+  travels inside the encrypted mesh, plain `http://` is acceptable here.
+- **Reverse proxy / tunnel** (Caddy, Cloudflare Tunnel, ngrok). Terminate TLS
+  at the edge and forward to `127.0.0.1:8791` on the gateway host.
+- **Public bind + TLS + strong token** (`IRIS_HTTP_HOST=0.0.0.0` + Option B).
+  Last resort — the port is then reachable from the internet; the token and
+  TLS are what protect it.
+
+## Part 5 — Push notifications (optional)
+
+Push wakes a backgrounded or offline phone so you see replies even when the
+app is closed. Nothing is lost either way — on reconnect the app syncs its
+outbox.
+
+- **ntfy (default)** — the phone generates its own topic automatically; the
+  gateway publishes to it. ⚠️ **The default server is the public
+  `https://ntfy.sh` cloud service** — push metadata (topic, notification
+  title) passes through ntfy.sh's servers. Set `NTFY_SERVER_URL` to a
+  **self-hosted ntfy** to keep push metadata on your own infrastructure —
+  that is the private option (and also more reliable: the public `ntfy.sh`
+  SSE endpoint is flaky).
+- **FCM (opt-in, `IRIS_PUSH_BACKEND=fcm`)** — standard and reliable, but push
+  metadata (notification title, device token) is routed through **Google's
+  servers**. Needs a Firebase project + `google-services.json` in the app
+  build. Without it, FCM is inert and ntfy is the path.
+
+Details: [`08-push.md`](08-push.md).
+
+---
+
+## Gateway options (reference)
+
+Everything is configured in `~/.hermes/.env` on the gateway host (or via the
+prompts of `hermes gateway setup`). After changes: `hermes gateway restart`.
+
+| Variable | What it does | Default |
+| --- | --- | --- |
+| `IRIS_TOKEN` | Pairing token the app must present. | — (required) |
+| `IRIS_HTTP_HOST` | Bind address. `127.0.0.1` = local only; LAN IP = same network; `0.0.0.0` = all interfaces. | `127.0.0.1` |
+| `IRIS_HTTP_PORT` | Port the app connects to. | `8791` |
+| `IRIS_HOME_CHANNEL` | Default chat for cron/notification delivery. | `default` |
+| `IRIS_ALLOWED_USERS` | Comma-separated device ids allowed to connect (empty = token-only auth). | empty |
+| `IRIS_ALLOW_ALL_USERS` | Allow any paired device (**dev only**). | `false` |
+| `IRIS_PUSH_BACKEND` | `ntfy` or `fcm`. | `ntfy` |
+| `IRIS_FCM_SERVICE_ACCOUNT` | Path to Firebase service-account JSON (FCM). | — |
+| `IRIS_FCM_SERVER_KEY` | Legacy FCM server key (fallback). | — |
+| `NTFY_SERVER_URL` | ntfy server. Self-hosting recommended. | `https://ntfy.sh` |
+| `NTFY_AUTH_TOKEN` | Auth token for a private ntfy topic (real trust boundary). | — |
+| `IRIS_HTTP_CERT` / `IRIS_HTTP_KEY` | TLS cert/key paths → serves `https://` (see Part 4, Option B). | — |
+
+Security model (tokens, device allowlist, transport):
+[`09-pairing-security.md`](09-pairing-security.md).
+
+---
+
+## Troubleshooting
+
+| Symptom | Likely cause / fix |
+| --- | --- |
+| `auth failed` on connect | Wrong token. Check `IRIS_TOKEN` in `~/.hermes/.env` (setup prints it only when it generates it). |
+| Connection refused | Gateway not running (`hermes gateway status`); wrong URL (port `8791`, LAN IP instead of `127.0.0.1` from a phone); firewall blocking the port. |
+| Phone can't reach the gateway | Gateway bound to `127.0.0.1` — re-run `hermes gateway setup` and set the LAN IP; or the phone is on a different network/VLAN. |
+| TLS handshake fails | Cert has no SAN matching the URL host; or the pinned fingerprint is stale after a cert change (re-confirm in the app). |
+| Push not arriving | Backend not configured (check `~/.hermes/logs/gateway.log`); ntfy.sh flakiness — self-host ntfy. |
+| Start over on a phone | `adb shell pm clear dev.iris.app` wipes the app's pairing state. |
+
+Logs: `~/.hermes/logs/gateway.log` or `hermes logs --follow`.

docs/playstore-listing.md

@@ -0,0 +1,44 @@
+# Play Store Listing
+
+Copy-paste text for the Play Console (and the F-Droid / sideload pages).
+Keep this file in sync with the README whenever the privacy story changes.
+
+## Short description (≤ 80 chars)
+
+Private chat for your personal AI agent — Android & desktop.
+
+## Full description
+
+Iris is a native chat app for your personal AI agent (hermes-agent):
+streaming replies, visible reasoning, structured tool activity, channels,
+threads, media, search — Telegram-quality, on your own infrastructure.
+
+**Absolute Privacy!** — everything stays on your own infrastructure:
+
+- Your gateway, your machine, your data. No cloud middleman for chat.
+- **Push notifications:** ntfy by default. Note: out of the box it uses the
+  public ntfy.sh service; self-host ntfy (one env var) to keep push metadata
+  on your own server.
+- **FCM is opt-in** (`IRIS_PUSH_BACKEND=fcm`): standard and reliable, but FCM
+  push metadata (notification title, device token) is routed through
+  **Google's servers**. If you want truly private communication, use ntfy
+  (self-hosted) instead — it is the default.
+
+100 MB file uploads by default (configurable on your gateway). No
+4,096-character message limit like Telegram. Full markdown + HTML artifact
+preview. All settings live in the app.
+
+Runs on Android and desktop (Linux, macOS, Windows) from one shared codebase.
+
+## Privacy note (for the "Data safety" section / FAQ)
+
+Iris talks directly to your own hermes gateway over a private, token-authenticated
+connection. By default, push notifications use ntfy — out of the box via the
+public ntfy.sh service (push metadata such as the topic and notification title
+passes through ntfy.sh's servers); self-host ntfy (one env var) so that push
+metadata never leaves your infrastructure. If you explicitly enable FCM, push
+metadata (notification title, device token) is sent via Google's FCM servers;
+chat content itself is not sent to Google — FCM only carries a short preview,
+and full content is fetched from your gateway over the authenticated
+connection. For truly private communication, use the default ntfy backend
+with a self-hosted ntfy server.

docs/protocol/frames.schema.json

@@ -10,7 +10,7 @@
       "v": { "type": "integer", "const": 1, "description": "Protocol version." },
       "id": { "type": "integer", "description": "Request id; present on requests and their responses/acks. Absent on pure events." },
       "type": { "type": "string", "description": "Frame type (see frame_types)." },
-      "chat_id": { "type": "string", "description": "Optional chat scope (e.g. android:default, android:chan_7)." },
+      "chat_id": { "type": "string", "description": "Optional chat scope (e.g. default, chan_7)." },
       "thread_id": { "type": "string", "description": "Optional thread scope within a chat_id." },
       "cursor": { "type": "integer", "description": "Outbox cursor the frame was parked under. Present ONLY on frames replayed by sync (live frames carry none). The app skips re-notifying replayed frames with cursor <= last_pushed_cursor (docs/08 §8.7)." },
       "payload": { "type": "object", "description": "Type-specific payload." }
@@ -21,9 +21,10 @@
       "hello.ack": {
         "description": "Pairing succeeded.",
         "payload": {
-          "server_caps": { "type": "object", "properties": { "streaming": {"type":"boolean"}, "reasoning": {"type":"boolean"}, "tools": {"type":"boolean"}, "media": {"type":"boolean"}, "search": {"type":"boolean"}, "push": {"type":"string","enum":["fcm","ntfy","none"]}, "push_ntfy_server": {"type":"string","description":"ntfy server URL for the app's listener; empty string when the backend is not ntfy."}, "pickers": {"type":"boolean"} } },
+          "server_caps": { "type": "object", "properties": { "streaming": {"type":"boolean"}, "reasoning": {"type":"boolean"}, "tools": {"type":"boolean"}, "media": {"type":"boolean"}, "search": {"type":"boolean"}, "push": {"type":"string","enum":["fcm","ntfy","none"]}, "push_ntfy_server": {"type":"string","description":"ntfy server URL for the app's listener; empty string when the backend is not ntfy."}, "pickers": {"type":"boolean"}, "app_version": {"type":"string","description":"Release version of the gateway plugin (repo-root VERSION file); the app shows it in Settings and hints on app/gateway mismatch."} } },
           "sync_cursor": { "type": "integer" },
           "last_pushed_cursor": { "type": "integer", "description": "Highest outbox cursor already delivered to THIS device via the push backend (0 = never). The app skips system notifications for sync-replayed frames at/below it (dedupe, docs/08 §8.7)." },
+          "device_token": { "type": "string", "description": "Per-device token minted at pairing (docs/09 §9.3). The app stores it and presents it INSTEAD of the shared IRIS_TOKEN from then on; the gateway can revoke it per device. Empty when the gateway didn't issue one (legacy)." },
           "channels": { "type": "array", "items": { "$ref": "#/definitions/channel" } }
         }
       },
@@ -47,9 +48,10 @@
       "message.stop": { "payload": { "message_id": { "type": "string" }, "final_text": { "type": "string" }, "reasoning": { "type": "string" }, "model": { "type": "string" }, "tokens": { "type": "integer" }, "runtime": { "$ref": "#/definitions/runtime" }, "ts": { "type": "integer" } } },
       "message.deleted": { "description": "The given message(s) were deleted from a chat/thread. Response to a message.delete request (id set) and broadcast to every device so all drop them from their cache; also outboxed so an offline device learns of the deletion on its next sync.", "payload": { "message_ids": { "type": "array", "items": { "type": "string" } } } },
       "commentary": { "description": "Intermediate assistant beat.", "payload": { "message_id": { "type": "string" }, "text": { "type": "string" } } },
-      "tool.start": { "payload": { "index": { "type": "integer" }, "name": { "type": "string" }, "preview": { "type": "string" }, "args": { "type": "object" } } },
+      "tool.start": { "description": "Cosmetic per-tool emoji (resolved server-side via hermes' get_tool_emoji: active-skin overrides, then the tool registry's per-tool emoji); omitted when the tool is unknown so the app falls back to its own default glyph.", "payload": { "index": { "type": "integer" }, "name": { "type": "string" }, "preview": { "type": "string" }, "args": { "type": "object" }, "emoji": { "type": "string" } } },
       "tool.progress": { "payload": { "index": { "type": "integer" }, "name": { "type": "string" }, "note": { "type": "string" } } },
       "tool.end": { "payload": { "index": { "type": "integer" }, "name": { "type": "string" }, "ok": { "type": "boolean" }, "duration": { "type": "number" }, "output_preview": { "type": "string" } } },
+      "todo.update": { "description": "The agent's FULL current todo list for a chat/thread lane (last-write-wins). Emitted whenever the `todo` tool completes (the tool result is authoritative even for merge writes, whose args carry only the changed items) and, as a snapshot, right after hello when a device opens its event stream. Ephemeral: never outboxed, so a reconnecting device learns the list from the snapshot, not a replay. The app renders it as a compact scrollable strip above the composer.", "payload": { "todos": { "type": "array", "items": { "type": "object", "properties": { "id": { "type": "string" }, "content": { "type": "string" }, "status": { "type": "string", "enum": ["pending", "in_progress", "completed", "cancelled"] } } } } } },
       "typing": { "payload": { "on": { "type": "boolean" } } },
       "notification": { "payload": { "kind": { "type": "string", "enum": ["channel_renamed", "channel_created", "channel_deleted", "cron", "approval", "clarify", "generic"] }, "title": { "type": "string" }, "body": { "type": "string" }, "ts": { "type": "integer" } } },
       "channel.list": { "description": "Full channel directory (response to a channel.list request).", "payload": { "channels": { "type": "array", "items": { "$ref": "#/definitions/channel" } } } },
@@ -59,14 +61,15 @@
       "search.results": { "payload": { "query": { "type": "string" }, "scope": { "type": "string", "enum": ["all", "chat"] }, "hits": { "type": "array", "items": { "type": "object", "properties": { "message_id": {"type":"string"}, "chat_id": {"type":"string"}, "thread_id": {"type":["string","null"]}, "role": {"type":"string"}, "snippet": {"type":"string"}, "ts": {"type":"integer"} } } } } },
       "media.offer": { "description": "Agent-sent media available; app pulls bytes.", "payload": { "$ref": "#/definitions/media_ref" } },
       "read.receipt": { "description": "Agent received and started processing the user's message; app shows ✓✓ on user bubbles. Emitted to the originating connection when a message.send is accepted for processing.", "payload": { "message_id": { "type": "string" } } },
-      "status": { "description": "Gateway health state; broadcast to all connected clients at startup (state=online).", "payload": { "state": { "type": "string", "enum": ["online", "restarting", "degraded"] } } },
+      "status": { "description": "Gateway health state; broadcast to all connected clients at startup (state=online) and to late joiners on hello.ack. state=restarting is broadcast on the gateway's shutdown path (restart/stop) before the sockets close; the app shows the 'Gateway restarting' chat notice only on that signal, not on a plain network drop.", "payload": { "state": { "type": "string", "enum": ["online", "restarting", "degraded"] } } },
       "error": { "payload": { "code": { "type": "string", "enum": ["auth", "not_found", "rate_limited", "media_too_large", "unsupported", "internal"] }, "message": { "type": "string" } } },
       "pong": { "payload": { "ts": { "type": "integer" } } },
       "sync.done": { "payload": { "cursor": { "type": "integer" } } },
       "history": { "description": "Paged full message history for a chat/thread (response to a history request). Reconstructed from the outbox log; used to populate the view on first open / after a process death, since sync only replays the outbox delta.", "payload": { "messages": { "type": "array", "items": { "type": "object", "properties": { "message_id": {"type":"string"}, "role": {"type":"string","enum":["user","assistant"]}, "text": {"type":"string"}, "reasoning": {"type":"string"}, "model": {"type":"string"}, "tokens": {"type":"integer"}, "runtime": {"$ref":"#/definitions/runtime"}, "ts": {"type":"integer"}, "media": {"type":"array","items":{"$ref":"#/definitions/media_ref"}} } } }, "has_more": { "type": "boolean", "description": "True when older pages exist." }, "oldest_message_id": { "type": "string", "description": "before_message_id for the next (older) page." } } },
       "media.pull.end": { "payload": { "ok": { "type": "boolean" } } },
       "media.upload.ack": { "description": "Response to media.upload.end; ref is cached and usable in message.send media_refs.", "payload": { "ok": { "type": "boolean" }, "media_ref": { "type": "string" } } },
-      "commands.catalog": { "description": "Response to a commands.catalog request: the gateway's slash-command catalog for the app's '/' drawer. Derived from hermes' COMMAND_REGISTRY (gateway-available subset) plus plugin-registered commands. The app fuzzy-matches the typed prefix client-side.", "payload": { "commands": { "type": "array", "items": { "type": "object", "properties": { "name": { "type": "string", "description": "Canonical command with leading slash, e.g. \"/new\"." }, "description": { "type": "string" }, "args_hint": { "type": "string", "description": "Argument placeholder, e.g. \"[name]\"; empty when none." }, "category": { "type": "string", "description": "Registry category (Session, Configuration, Tools & Skills, Info, Exit, Plugin)." }, "aliases": { "type": "array", "items": { "type": "string" }, "description": "Alternative names with leading slash, e.g. [\"/reset\"] for /new." } } } } } }
+      "commands.catalog": { "description": "Response to a commands.catalog request: the gateway's slash-command catalog for the app's '/' drawer. Derived from hermes' COMMAND_REGISTRY (gateway-available subset) plus plugin-registered commands. The app fuzzy-matches the typed prefix client-side.", "payload": { "commands": { "type": "array", "items": { "type": "object", "properties": { "name": { "type": "string", "description": "Canonical command with leading slash, e.g. \"/new\"." }, "description": { "type": "string" }, "args_hint": { "type": "string", "description": "Argument placeholder, e.g. \"[name]\"; empty when none." }, "category": { "type": "string", "description": "Registry category (Session, Configuration, Tools & Skills, Info, Exit, Plugin)." }, "aliases": { "type": "array", "items": { "type": "string" }, "description": "Alternative names with leading slash, e.g. [\"/reset\"] for /new." } } } } } },
+      "picker.choice": { "description": "Interactive choice picker (one tap -> one value) for finite-choice slash commands (/reasoning, /fast, ...). The app renders the title + choice buttons and answers with picker.select carrying the same picker_id. Outboxed, so a reconnecting device re-renders a still-pending picker; pending state is in-memory only (a gateway restart expires it).", "payload": { "picker_id": { "type": "string" }, "title": { "type": "string" }, "choices": { "type": "array", "items": { "type": "object", "properties": { "value": { "type": "string" }, "label": { "type": "string" }, "is_current": { "type": "boolean" } } } } } }
     },
     "app_to_server": {
       "hello": { "description": "First frame; auth + caps.", "payload": { "token": { "type": "string" }, "device_id": { "type": "string" }, "device_name": { "type": "string" }, "caps": { "type": "object", "properties": { "min_protocol": {"type":"integer"}, "media": {"type":"boolean"}, "push": {"type":"string"} } }, "fcm_token": { "type": "string" }, "ntfy_topic": { "type": "string" } } },
@@ -88,22 +91,21 @@
       "history": { "description": "Load a page of full message history for a chat/thread (initial open, scroll-up pagination).", "payload": { "before_message_id": { "type": "string", "description": "Return messages older than this (omit for newest page)." }, "limit": { "type": "integer", "description": "Max messages (default 50, max 200)." } } },
       "message.delete": { "description": "Completely delete the given message(s) from a chat/thread. The server removes them from the outbox (so history/sync no longer return them) and from the hermes session store (so no search trace survives and they are not recoverable), then broadcasts message.deleted to every device. Idempotent: a message already gone (pruned) still yields a message.deleted broadcast.", "payload": { "message_ids": { "type": "array", "items": { "type": "string" }, "description": "One or more message_id values to delete." } } },
       "fcm.register": { "payload": { "fcm_token": { "type": "string" }, "ntfy_topic": { "type": "string" } } },
+      "picker.select": { "description": "Answer an interactive picker (picker.choice). The server runs the command's selection callback and delivers its reply as a normal message in the picker's chat. Unknown/expired picker ids are a no-op.", "payload": { "picker_id": { "type": "string" }, "value": { "type": "string" } } },
       "ping": { "payload": { "ts": { "type": "integer" } } }
     }
   },
   "definitions": {
     "kind": { "type": "string", "enum": ["image", "audio", "video", "document", "voice"] },
-    "channel": { "type": "object", "properties": { "chat_id": {"type":"string"}, "name": {"type":"string"}, "kind": {"type":"string","enum":["default","channel","thread"]}, "parent_chat_id": {"type":["string","null"]}, "is_default": {"type":"boolean"}, "archived": {"type":"boolean"}, "auto": {"type":"boolean","description":"Optional; true on channel.created for a gateway-minted auto-thread."}, "favorite": {"type":"boolean","description":"Optional; cosmetic favorite flag (sorts to the top of the list)."}, "icon": {"type":["string","null"],"description":"Optional; cosmetic icon, a base64-encoded image (PNG/JPEG). Absent/null = auto-generated letter avatar."}, "color": {"type":["string","null"],"description":"Optional; cosmetic avatar color override (#RRGGBB). Absent/null = auto-generated name-hash color."}, "automation": {"type":"boolean","description":"Optional; true when the channel is an automation channel (read-only for the user; only receives gateway-originated output such as cron jobs and webhooks). The app hides the composer and the gateway rejects message.send into it. Never set on the default channel."} } },
+    "channel": { "type": "object", "properties": { "chat_id": {"type":"string"}, "name": {"type":"string"}, "kind": {"type":"string","enum":["default","channel","thread"]}, "parent_chat_id": {"type":["string","null"]}, "is_default": {"type":"boolean"}, "archived": {"type":"boolean"}, "created": {"type":"number","description":"Optional; unix timestamp (seconds) when the channel/thread was created. The app orders threads newest-first in the topic switcher."}, "auto": {"type":"boolean","description":"Optional; true on channel.created for a gateway-minted auto-thread."}, "favorite": {"type":"boolean","description":"Optional; cosmetic favorite flag (sorts to the top of the list)."}, "icon": {"type":["string","null"],"description":"Optional; cosmetic icon, a base64-encoded image (PNG/JPEG). Absent/null = auto-generated letter avatar."}, "color": {"type":["string","null"],"description":"Optional; cosmetic avatar color override (#RRGGBB). Absent/null = auto-generated name-hash color."}, "automation": {"type":"boolean","description":"Optional; true when the channel is an automation channel (read-only for the user; only receives gateway-originated output such as cron jobs and webhooks). The app hides the composer and the gateway rejects message.send into it. Never set on the default channel."} } },
     "media_ref": { "type": "object", "properties": { "media_id": {"type":"string"}, "kind": { "$ref": "#/definitions/kind" }, "mime": {"type":"string"}, "size": {"type":"integer"}, "filename": {"type":"string"}, "message_id": {"type":"string","description":"Optional; set on media.offer to associate the offer with the assistant message it belongs to."} } },
     "runtime": { "type": "object", "description": "Structured runtime-metadata footer (app-controlled display). The gateway ALWAYS sends it on final assistant messages; whether/what is shown is a per-app setting (Settings -> Runtime footer), NOT a hermes config. All keys optional; absent when the data is unavailable (e.g. local models have no cost).", "properties": { "model": {"type":"string","description":"Bare model id, vendor prefix dropped (gpt-5.4)."}, "context_pct": {"type":"integer","description":"Last-call context occupancy, 0-100."}, "cwd": {"type":"string","description":"Home-relative working dir (~)."}, "latency": {"type":"number","description":"Wall-clock turn duration, seconds."}, "cost": {"type":"number","description":"Turn cost, USD."} } }
   },
   "x-planned-frames": [
     { "name": "picker.model", "direction": "server_to_app", "note": "Model/provider picker prompt. Planned, not implemented." },
-    { "name": "picker.choice", "direction": "server_to_app", "note": "Generic choice picker prompt. Planned, not implemented." },
     { "name": "picker.clarify", "direction": "server_to_app", "note": "Clarify picker prompt. Planned, not implemented (clarifies arrive as notification + message)." },
     { "name": "picker.approval", "direction": "server_to_app", "note": "Approval picker prompt. Planned, not implemented (approvals arrive as notification)." },
     { "name": "picker.confirm", "direction": "server_to_app", "note": "Confirmation picker prompt. Planned, not implemented." },
-    { "name": "picker.select", "direction": "app_to_server", "note": "Picker answer. Planned, not implemented." },
     { "name": "commands.complete", "direction": "server_to_app", "note": "Slash-command autocomplete. Planned, not implemented (the app fuzzy-matches the commands.catalog list client-side)." },
     { "name": "commands.complete", "direction": "app_to_server", "note": "Slash-command autocomplete request. Planned, not implemented." },
     { "name": "agent.busy", "direction": "server_to_app", "note": "Agent-busy indicator. Planned, not implemented (typing frames cover it)." },

docs/setup.md

@@ -1,170 +1,10 @@
 # Setup — Pairing a Device
 
-User-facing guide: get a phone or desktop talking to your hermes gateway in
-under 10 minutes. Design rationale lives in the numbered docs
-([`09-pairing-security.md`](09-pairing-security.md),
-[`08-push.md`](08-push.md), [`12-toolchain.md`](12-toolchain.md)); this page is
-just the steps.
-
-## Prerequisites
-
-| Where | You need |
-|---|---|
-| Gateway host | hermes installed with its venv (`cd hermes-agent && uv sync`, see [`12-toolchain.md` §12.4](12-toolchain.md)) |
-| Android build machine | JDK 17, Android SDK with `ANDROID_HOME` set (or `app/local.properties`), ADB with a connected device |
-| Desktop build machine | JDK 17 only |
-
-Gradle needs no system install — both apps use the project wrapper
-(`./gradlew`). First-time machine setup: [`12-toolchain.md`](12-toolchain.md).
-
-## 1. Gateway setup (on the gateway host)
-
-Install the plugin into the live hermes home (dev: a symlink from the monorepo
-root):
-
-```bash
-mkdir -p ~/.hermes/plugins
-ln -s "$PWD/gateway-plugin" ~/.hermes/plugins/android
-hermes gateway status        # should list "android"
-```
-
-Run the interactive setup:
-
-```bash
-hermes gateway setup
-```
-
-What it does:
-
-- Generates `ANDROID_TOKEN` (64 hex chars) if none exists and stores it in
-  `~/.hermes/.env` (it prints the token once, at generation).
-- Prompts for the WS bind host (default `127.0.0.1`), port (default `8790`),
-  and push backend (`fcm` or `ntfy`, default `fcm`).
-- Prints the pairing payload (a QR-encodable `iris://pair?host=…&port=…&token=…`
-  string) and the server URL (`ws://<host>:8790/ws`).
-
-Then start the gateway:
-
-```bash
-hermes gateway               # or: hermes gateway restart after config changes
-```
-
-> **Note:** the default bind host `127.0.0.1` only accepts connections from the
-> gateway host itself (e.g. a desktop app on the same machine). For a phone on
-> the LAN, re-run `hermes gateway setup` (or edit `~/.hermes/.env`) and set
-> `ANDROID_WS_HOST` to the host's LAN IP (e.g. `192.168.1.10`).
-
-## 2. Android app
-
-Build and install (ADB device connected):
-
-```bash
-cd app
-./gradlew :androidApp:installDebug
-```
-
-First run opens the **Connect** screen:
-
-1. **Server URL** — `ws://<gateway-ip>:8790/ws` (the URL printed by
-   `hermes gateway setup`; use the LAN IP, not `127.0.0.1`, from a phone).
-2. **Pairing token** — from the `hermes gateway setup` output, or
-   `grep ANDROID_TOKEN ~/.hermes/.env` on the gateway host.
-3. **Test & Connect** — performs a real `hello` (the auth leg), then saves the
-   pairing and connects.
-
-> **Honest limitation:** QR scanning is **not** supported in the app yet. The
-> server prints a QR payload, but pairing is manual URL + token entry only.
-
-## 3. Desktop app
-
-```bash
-cd app
-./gradlew :desktopApp:run        # dev run
-./gradlew :desktopApp:jpackage   # native app-image (bundles the JRE)
-```
-
-Pairing is the same Connect screen (URL + token); the token is stored in the OS
-keyring (with an encrypted-file fallback). Desktop push is tray icon + OS
-notifications (no FCM).
-
-> **Known issue:** on Linux with JDK 17 the jpackage launcher prints a
-> non-fatal `pure virtual method called` warning (JDK-8348560, a
-> jpackage/Linux launcher bug). The app runs and connects regardless.
-
-## 4. Push notifications
-
-Push wakes a backgrounded/offline device; on reconnect the app syncs the
-outbox, so nothing is lost. Push fires when the device is offline, plus for
-high-priority events (approvals, clarifies, cron) even when a device is live.
-
-### FCM (default; needs a Firebase project)
-
-1. Create a Firebase project (console.firebase.google.com) and add an Android
-   app with the app's applicationId; download `google-services.json` into
-   `app/androidApp/`.
-2. Create a service account (Project settings → Service accounts → Generate new
-   private key) and store the JSON path in `~/.hermes/.env`:
-   `ANDROID_FCM_SERVICE_ACCOUNT=/path/to/service-account.json`.
-3. Keep `ANDROID_PUSH_BACKEND=fcm` (the default).
-
-Without a Firebase project the FCM path is **inert** (the app's FCM service
-does nothing) — use ntfy below, or add Firebase later.
-
-**What you see:** system notifications for new messages when the app is
-backgrounded; tapping one deep-links to the chat.
-
-### ntfy (zero-config fallback)
-
-```
-ANDROID_PUSH_BACKEND=ntfy
-```
-
-- The device **generates its own topic** automatically (no `NTFY_TOPIC` needed);
-  the server publishes to it.
-- `NTFY_SERVER_URL` defaults to `https://ntfy.sh`. **Self-hosted ntfy is
-  recommended** — the public ntfy.sh SSE endpoint is flaky (it has served its
-  web UI instead of the stream), while a self-hosted instance gives reliable
-  SSE. For a real trust boundary use a private topic + `NTFY_AUTH_TOKEN`.
-
-**What you see:** a low-priority foreground "ntfy listener" notification while
-the app is off; incoming pushes trigger a silent sync.
-
-## 5. Remote access
-
-- **Tailscale / WireGuard (recommended):** the gateway gets a stable tailnet IP;
-  the app connects to `ws://<tailnet-ip>:8790/ws`. No public exposure.
-- **Reverse proxy / tunnel** (Caddy, Cloudflare Tunnel, ngrok): terminate TLS at
-  the edge, forward the WebSocket to `127.0.0.1:8790`.
-- **WSS:** set `ANDROID_WS_CERT` / `ANDROID_WS_KEY` (paths, in
-  `~/.hermes/.env`) and the server serves `wss://` instead of `ws://`.
-
-> **Honest limitation:** the app has **no certificate pinning** yet, so
-> self-signed certs won't work — remote access requires **CA-signed** WSS for
-> now. Plain `ws://` on a trusted LAN (or inside Tailscale) stays the default.
-
-## 6. Troubleshooting
-
-| Symptom | Likely cause / fix |
-|---|---|
-| `auth failed` / `error {code:"auth"}` on connect | Wrong token. Check `ANDROID_TOKEN` in `~/.hermes/.env` on the gateway host (setup prints it only when it generates it). |
-| Connection refused | Gateway not running (`hermes gateway status`); wrong URL (port `8790`, path `/ws`, LAN IP instead of `127.0.0.1` from a phone); firewall blocking the port. |
-| Push not arriving | Backend not configured (gateway log: `push backend … not configured`); app backgrounded with no working backend; ntfy.sh SSE flakiness — use a self-hosted ntfy. |
-| Desktop jpackage launcher warning | Non-fatal (JDK-8348560 on Linux JDK 17); the app runs and connects regardless. |
-
-Smoke test without the app (from the gateway host):
-
-```bash
-python - <<'PY'
-import asyncio, json, websockets
-async def main():
-    async with websockets.connect("ws://127.0.0.1:8790/ws") as ws:
-        await ws.send(json.dumps({"v":1,"type":"hello","payload":{
-            "token":"<ANDROID_TOKEN>","device_id":"test","device_name":"probe",
-            "caps":{"min_protocol":1}}}))
-        print("recv:", await ws.recv())
-asyncio.run(main())
-PY
-```
-
-Expect a `hello.ack`. If you get `error {code:"auth"}`, the token/host/port is
-wrong.
+> **Moved.** The user-facing setup guide now lives in
+> [`install.md`](install.md) — gateway install, all options, app install,
+> and connecting (LAN / TLS / remote). This file is kept so old links keep
+> working.
+>
+> - Push details: [`08-push.md`](08-push.md)
+> - Security model: [`09-pairing-security.md`](09-pairing-security.md)
+> - Toolchain (first-time machine setup): [`12-toolchain.md`](12-toolchain.md)

gateway-plugin/channel_frames.py

@@ -0,0 +1,358 @@
+"""M3: channel-directory frame handlers (``channel.*`` + directory queries).
+
+Mixin for ``adapter.IrisAdapter``. Each request is answered by broadcasting
+the matching ``channel.*`` event carrying the request ``id``: the requester's
+pending request completes on the id, and every other device reconciles its
+local copy from the same frame (single broadcast serves as event + response).
+"""
+
+import logging
+from typing import Any
+
+from hermes_constants import get_hermes_home
+
+from . import protocol
+from . import purge as purge_bridge
+from .defaults import DEFAULT_HOME_CHANNEL
+from .mixin_base import IrisAdapterBase
+
+logger = logging.getLogger(__name__)
+
+
+class ChannelFrameHandlers(IrisAdapterBase):
+    """Channel directory management (see module docstring)."""
+
+    async def on_channel_create(self, frame: protocol.Frame, device_id: str) -> None:
+        payload = frame.payload
+        name = payload.get("name")
+        if not isinstance(name, str) or not name.strip():
+            await self._reply(
+                device_id,
+                protocol.error(
+                    protocol.ERR_UNSUPPORTED, "channel.create requires a name", id=frame.id
+                ),
+            )
+            return
+        kind = payload.get("kind")
+        kind = kind if kind in ("channel", "thread") else "channel"
+        parent_chat_id = payload.get("parent_chat_id")
+        if not isinstance(parent_chat_id, str) or not parent_chat_id.strip():
+            parent_chat_id = None
+        if kind == "thread" and not parent_chat_id:
+            parent_chat_id = frame.chat_id or self.home_channel
+        try:
+            entry = self._channels.create(name=name, kind=kind, parent_chat_id=parent_chat_id)
+        except ValueError as e:
+            await self._reply(
+                device_id, protocol.error(protocol.ERR_UNSUPPORTED, str(e), id=frame.id)
+            )
+            return
+        resp = protocol.channel_created(entry)
+        resp.id = frame.id
+        await self._http_server.fanout(resp)
+        # M5: banner + push mirror (parked in the outbox when offline).
+        await self._broadcast_or_log(
+            entry["chat_id"],
+            protocol.notification(
+                entry["chat_id"],
+                protocol.NOTIF_CHANNEL_CREATED,
+                "Channels",
+                f"New channel: {name}",
+            ),
+        )
+
+    async def on_channel_rename(self, frame: protocol.Frame, device_id: str) -> None:
+        chat_id = frame.chat_id or frame.payload.get("chat_id")
+        if not isinstance(chat_id, str) or not chat_id.strip():
+            await self._reply(
+                device_id,
+                protocol.error(
+                    protocol.ERR_NOT_FOUND, "channel.rename requires chat_id", id=frame.id
+                ),
+            )
+            return
+        name = frame.payload.get("name")
+        if not isinstance(name, str) or not name.strip():
+            await self._reply(
+                device_id,
+                protocol.error(
+                    protocol.ERR_UNSUPPORTED, "channel.rename requires a name", id=frame.id
+                ),
+            )
+            return
+        try:
+            entry = self._channels.rename(chat_id, name)
+        except ValueError as e:
+            await self._reply(
+                device_id, protocol.error(protocol.ERR_UNSUPPORTED, str(e), id=frame.id)
+            )
+            return
+        if entry is None:
+            await self._reply(
+                device_id,
+                protocol.error(protocol.ERR_NOT_FOUND, f"unknown chat_id {chat_id}", id=frame.id),
+            )
+            return
+        resp = protocol.channel_renamed(entry)
+        resp.id = frame.id
+        await self._http_server.fanout(resp)
+        # M5: banner + push mirror (parked in the outbox when offline).
+        await self._broadcast_or_log(
+            chat_id,
+            protocol.notification(
+                chat_id,
+                protocol.NOTIF_CHANNEL_RENAMED,
+                "Channels",
+                f"Renamed to {name}",
+            ),
+        )
+
+    async def on_channel_set_default(self, frame: protocol.Frame, device_id: str) -> None:
+        chat_id = frame.chat_id or frame.payload.get("chat_id")
+        if not isinstance(chat_id, str) or not chat_id.strip():
+            await self._reply(
+                device_id,
+                protocol.error(
+                    protocol.ERR_NOT_FOUND, "channel.set_default requires chat_id", id=frame.id
+                ),
+            )
+            return
+        entry = self._channels.set_default(chat_id)
+        if entry is None:
+            await self._reply(
+                device_id,
+                protocol.error(protocol.ERR_NOT_FOUND, f"unknown chat_id {chat_id}", id=frame.id),
+            )
+            return
+        # Reuse the renamed event shape: it carries the full entry (incl. the
+        # new is_default flag) so every device reconciles the default change.
+        resp = protocol.channel_renamed(entry)
+        resp.id = frame.id
+        await self._http_server.fanout(resp)
+
+    async def on_channel_favorite(self, frame: protocol.Frame, device_id: str) -> None:
+        chat_id = frame.chat_id or frame.payload.get("chat_id")
+        if not isinstance(chat_id, str) or not chat_id.strip():
+            await self._reply(
+                device_id,
+                protocol.error(
+                    protocol.ERR_NOT_FOUND, "channel.favorite requires chat_id", id=frame.id
+                ),
+            )
+            return
+        on = bool(frame.payload.get("on"))
+        entry = self._channels.set_favorite(chat_id, on)
+        if entry is None:
+            await self._reply(
+                device_id,
+                protocol.error(protocol.ERR_NOT_FOUND, f"unknown chat_id {chat_id}", id=frame.id),
+            )
+            return
+        # Reuse the renamed event shape: it carries the full entry (incl. the
+        # new favorite flag) so every device reconciles the change.
+        resp = protocol.channel_renamed(entry)
+        resp.id = frame.id
+        await self._http_server.fanout(resp)
+
+    async def on_channel_icon(self, frame: protocol.Frame, device_id: str) -> None:
+        chat_id = frame.chat_id or frame.payload.get("chat_id")
+        if not isinstance(chat_id, str) or not chat_id.strip():
+            await self._reply(
+                device_id,
+                protocol.error(
+                    protocol.ERR_NOT_FOUND, "channel.icon requires chat_id", id=frame.id
+                ),
+            )
+            return
+        payload = frame.payload
+        icon = payload.get("icon")
+        icon = icon if isinstance(icon, str) and icon else None
+        color = payload.get("color")
+        color = color if isinstance(color, str) and color else None
+        # Guard against a runaway base64 blob (a channel icon is small).
+        if icon is not None and len(icon) > 512 * 1024:
+            await self._reply(
+                device_id,
+                protocol.error(protocol.ERR_UNSUPPORTED, "channel icon too large", id=frame.id),
+            )
+            return
+        entry = self._channels.set_icon(chat_id, icon, color)
+        if entry is None:
+            await self._reply(
+                device_id,
+                protocol.error(protocol.ERR_NOT_FOUND, f"unknown chat_id {chat_id}", id=frame.id),
+            )
+            return
+        resp = protocol.channel_renamed(entry)
+        resp.id = frame.id
+        await self._http_server.fanout(resp)
+
+    async def on_channel_set_automation(self, frame: protocol.Frame, device_id: str) -> None:
+        chat_id = frame.chat_id or frame.payload.get("chat_id")
+        if not isinstance(chat_id, str) or not chat_id.strip():
+            await self._reply(
+                device_id,
+                protocol.error(
+                    protocol.ERR_NOT_FOUND, "channel.set_automation requires chat_id", id=frame.id
+                ),
+            )
+            return
+        on = bool(frame.payload.get("on"))
+        entry = self._channels.set_automation(chat_id, on)
+        if entry is None:
+            await self._reply(
+                device_id,
+                protocol.error(
+                    protocol.ERR_NOT_FOUND,
+                    f"cannot set automation on {chat_id} (unknown or default)",
+                    id=frame.id,
+                ),
+            )
+            return
+        # Reuse the renamed event shape: it carries the full entry (incl. the
+        # new automation flag) so every device reconciles the change.
+        resp = protocol.channel_renamed(entry)
+        resp.id = frame.id
+        await self._http_server.fanout(resp)
+
+    async def on_channel_delete(self, frame: protocol.Frame, device_id: str) -> None:
+        chat_id = frame.chat_id or frame.payload.get("chat_id")
+        if not isinstance(chat_id, str) or not chat_id.strip():
+            await self._reply(
+                device_id,
+                protocol.error(
+                    protocol.ERR_NOT_FOUND, "channel.delete requires chat_id", id=frame.id
+                ),
+            )
+            return
+        entry = self._channels.delete(chat_id)
+        if entry is None:
+            await self._reply(
+                device_id,
+                protocol.error(
+                    protocol.ERR_NOT_FOUND,
+                    f"cannot delete {chat_id} (unknown or default)",
+                    id=frame.id,
+                ),
+            )
+            return
+        # Complete deletion: wipe the lane's history from the outbox (so
+        # ``history`` / ``sync`` can't resurrect it) and from the hermes
+        # session store (so no search trace survives). A channel delete takes
+        # its threads with it (thread_id=None); a thread delete is scoped to
+        # its parent channel + thread_id.
+        if entry.get("kind") == "thread":
+            lane_chat_id = entry.get("parent_chat_id") or chat_id
+            thread_id = chat_id
+        else:
+            lane_chat_id = chat_id
+            thread_id = None
+        removed_frames = self._outbox.delete_lane(lane_chat_id, thread_id=thread_id)
+        removed_msgs = purge_bridge.delete_lane(
+            get_hermes_home() / "state.db", lane_chat_id, thread_id=thread_id
+        )
+        logger.info(
+            "iris: channel.delete %s kind=%s outbox_frames=%s session_msgs=%s",
+            chat_id,
+            entry.get("kind"),
+            removed_frames,
+            removed_msgs,
+        )
+        resp = protocol.channel_deleted(chat_id)
+        resp.id = frame.id
+        await self._http_server.fanout(resp)
+        # M5: banner + push mirror (parked in the outbox when offline).
+        await self._broadcast_or_log(
+            chat_id,
+            protocol.notification(
+                chat_id,
+                protocol.NOTIF_CHANNEL_DELETED,
+                "Channels",
+                f"{entry.get('name') or chat_id} deleted",
+            ),
+        )
+
+    async def on_channel_list(self, frame: protocol.Frame, device_id: str) -> None:
+        channels = self._channels.list(include_archived=False)
+        resp = protocol.channel_list(channels)
+        resp.id = frame.id
+        await self._reply(device_id, resp)
+
+    # ── Chat info ─────────────────────────────────────────────────────────
+
+    def _channel_name(self, chat_id: str) -> str:
+        """Channel display name (M3: from the channel directory)."""
+        if not chat_id:
+            return "chat"
+        entry = self._channels.get(chat_id)
+        if entry is not None:
+            return entry["name"]
+        if chat_id in (self.home_channel, DEFAULT_HOME_CHANNEL):
+            return self.home_channel_name
+        return chat_id
+
+    async def get_chat_info(self, chat_id: str) -> dict[str, Any]:
+        """Return ``{name, type, chat_id}`` for a chat (M3: directory-backed)."""
+        entry = self._channels.get(chat_id)
+        kind = entry["kind"] if entry else "channel"
+        return {
+            "name": self._channel_name(chat_id),
+            "type": "dm" if kind == "default" else "channel",
+            "chat_id": chat_id,
+        }
+
+    def channel_list(self) -> list[dict[str, Any]]:
+        """Channel directory for ``hello.ack`` (M3: full non-archived list)."""
+        return self._channels.list(include_archived=False)
+
+    # ── M3: core channel-directory hook (cron / send_message name resolution)
+
+    async def list_channels(self) -> list[dict[str, Any]]:
+        """Expose the directory to the gateway's core channel directory.
+
+        ``gateway/channel_directory.build_channel_directory`` calls this to
+        populate ``channel_directory.json``, which ``resolve_channel_name``
+        reads for friendly-name -> chat_id resolution (cron + send_message).
+        Threads are addressed via the explicit ``iris:<chat>:<thread>``
+        syntax (see ``_parse_target_ref``), so only channels are listed here.
+        """
+        out: list[dict[str, Any]] = []
+        for entry in self._channels.list(include_archived=False):
+            if entry["kind"] == "thread":
+                continue
+            out.append(
+                {
+                    "id": entry["chat_id"],
+                    "name": entry["name"],
+                    "type": "dm" if entry["kind"] == "default" else "channel",
+                }
+            )
+        return out
+
+    # ── M3: thread handoff (gateway create_handoff_thread) ────────────────
+
+    async def create_handoff_thread(self, parent_chat_id: str, name: str) -> str | None:
+        """Mint a named thread under *parent_chat_id* (gateway handoff path).
+
+        Returns the new ``thread_id`` (``t_<n>``) so the handed-off session is
+        isolated in its own lane, or ``None`` when the parent is unknown.
+        """
+        parent = self._channels.get(parent_chat_id)
+        if parent is None:
+            # Unknown parent: still mint a thread under it so the handoff has a
+            # lane (the directory row is created lazily on first use).
+            parent_chat_id = parent_chat_id or self.home_channel
+        try:
+            entry = self._channels.create(
+                name=name or "Handoff", kind="thread", parent_chat_id=parent_chat_id
+            )
+        except Exception:
+            logger.warning("iris: create_handoff_thread failed", exc_info=True)
+            return None
+        await self._broadcast_both(protocol.channel_created(entry))
+        return entry["chat_id"]
+
+
+# ---------------------------------------------------------------------------
+# Plugin entry point
+# ---------------------------------------------------------------------------