Auto-threading, history pagination, streaming toggle + tool/reasoning display settings

- Auto-threading (Telegram topic-mode workflow): message.send {auto_thread}
  mints a fresh AI-named thread (instant derived title, LLM upgrade via
  channel.renamed); channel.created {auto:true}; the app jumps into the new
  thread and relocates the optimistic pending bubble.
- history frame: paged full message history for initial channel open /
  scroll-up pagination (reconstructed from the outbox log).
- Streaming on/off: gateway side (display.platforms.android.streaming) plus a
  per-device app toggle (Settings → Streaming); reasoning/model/tokens carried
  on message frames.
- Context menu: long-press (touch) / right-click (desktop) thread affordances
  via a KMP rightClick expect/actual.
- Settings → Reasoning: auto-collapse long reasoning blocks (default on).
- Tool detail: the gateway now always supplies full tool data — it forces
  verbose tool progress (full args → tool.start.args) and captures each
  completed call via the post_tool_call hook (output/duration/ok → tool.end).
  The app reveals the full call + output on expand (Truncated) and
  auto-expands cards in Everything mode.

docs/05-streaming.md

@@ -27,8 +27,15 @@ 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.
 
-**Streaming on/off.** Controlled by hermes `display.platforms.android.streaming`
-(default follows global). When off, the app just gets one final `message` frame.
+**Streaming on/off.** Two levels:
+- **Gateway side:** hermes `display.platforms.android.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
+  materializes each reply as a single final message on `message.stop`
+  (`ChatStore.onMessageStop` already handles a stop without a live bubble).
+  The gateway keeps streaming — frames are broadcast to all devices, so this
+  is a display preference like tool verbosity, not a wire flag.
 
 ## 5.2 Reasoning (shown *before* the message)