Added slash command handling

docs/10-android-app.md

@@ -81,17 +81,25 @@ app/shared/src/
   auto-grow field, attach (paperclip), mic/send (right). Send on Enter
   (configurable: Enter=send vs Enter=newline).
 
-### Menu button → all slash commands
-- `Menü` opens a **bottom sheet** listing the command catalog. The catalog is
-  served by the gateway via `commands.catalog` request → response with
-  `{name, description, args_hint, category}` per command, so it always matches
-  hermes (`/new`, `/model`, `/reasoning`, `/status`, `/cron`, `/tools`, …).
-- Typing `/` in the field shows **autocomplete** via `commands.complete`
-  request (gateway matches the typed prefix). Selecting inserts `/cmd `.
-- Selecting a command sends `message.send {text:"/cmd args"}`.
+### Slash commands
+- **`/` drawer (implemented):** typing `/` in the composer rolls a drawer up
+  over the input listing the command catalog. The catalog is served by the
+  gateway via `commands.catalog` request → response with
+  `{name, description, args_hint, category, aliases}` per command (derived
+  from hermes' `COMMAND_REGISTRY`, gateway-available subset + plugin commands),
+  so it always matches hermes (`/new`, `/model`, `/reasoning`, `/status`,
+  `/cron`, …). The drawer is shown while the input is a bare `/…` (no space
+  yet); typing fuzzy-filters it **client-side** (subsequence match over name +
+  aliases — no `commands.complete` round-trip). Tapping a row sends
+  `message.send {text:"/cmd"}` and closes the drawer; an unknown command
+  empties the match list and closes it (the raw text can still be sent —
+  hermes answers with its unknown-command reply). Escape (desktop) clears the
+  `/` input.
+- **Menu button (planned):** `Menü` opens a **bottom sheet** listing the same
+  catalog for discovery without typing.
 - **Interactive commands** (`/model`, `/reasoning`, `/fast`, approvals,
   clarifies) render as **native pickers** from `picker.*` frames (a dialog /
-  sheet with the options; answer via `picker.select`).
+  sheet with the options; answer via `picker.select`) — planned.
 
 ### Streaming (app-controlled)
 - **Settings → "Streaming"** toggle (default on). When off, the app ignores