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/04-wire-protocol.md

@@ -116,6 +116,10 @@ subscribe; the server pushes to every open WS).
 {"type":"channel.created","payload":{"chat_id":"android:chan_7","name":"Cron Reports",
    "kind":"channel","parent_chat_id":null}}
 ```
+`channel.created` may carry `"auto":true` for a thread the gateway minted
+itself for an incoming message (auto-threading): the name is an instant
+derived title, and a follow-up `channel.renamed` upgrades it to the model's
+title.
 
 ### `history`
 Response to a `history` request. Returns a page of messages for a chat/thread.
@@ -225,9 +229,16 @@ First frame; auth + caps.
 Send text (or a `/slash-command`).
 ```json
 {"type":"message.send","id":10,"chat_id":"android:default","thread_id":null,
- "payload":{"text":"/model qwen3-27b","reply_to":"m_9001","media_refs":["mu_1"]}}
+ "payload":{"text":"/model qwen3-27b","reply_to":"m_9001","media_refs":["mu_1"],
+            "auto_thread":false}}
 ```
 `media_refs` reference completed `media.upload`s to attach.
+`auto_thread` (optional, default false) asks the gateway to mint a fresh
+thread for the message (auto-threading, `06-channels-cron-search.md` §6.3):
+honored only in a channel's flat lane (`thread_id` null) with non-empty text
+that is not a slash command. The gateway then broadcasts
+`channel.created {auto:true}` and the echo / agent turn carry the new
+`thread_id`.
 
 ### `media.upload.start` / (binary) / `media.upload.end`
 See `07-media.md`.