Add QR pairing (terminal QR, in-app scanner, iris://pair deep link)

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 +50,9 @@ 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.
@@ -62,7 +62,7 @@ iris_x_hermes/
   `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`.
+  `NtfyBackend` (reuses hermes ntfy publish). 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.
@@ -83,7 +83,7 @@ Thin shells: `Application`/`MainActivity` (Android) and `main()`/window
 ## 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 +124,7 @@ 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`.