feat: add QQ Bot platform adapter (Official API v2)

Add full QQ Bot integration via the Official QQ Bot API (v2):
- WebSocket gateway for inbound events (C2C, group, guild, DM)
- REST API for outbound text/markdown/media messages
- Voice transcription (Tencent ASR + configurable STT provider)
- Attachment processing (images, voice, files)
- User authorization (allowlist + allow-all + DM pairing)

Integration points:
- gateway: Platform.QQ enum, adapter factory, allowlist maps
- CLI: setup wizard, gateway config, status display, tools config
- tools: send_message cross-platform routing, toolsets
- cron: delivery platform support
- docs: QQ Bot setup guide

website/docs/user-guide/messaging/index.md

@@ -6,7 +6,7 @@ description: "Chat with Hermes from Telegram, Discord, Slack, WhatsApp, Signal,
 
 # Messaging Gateway
 
-Chat with Hermes from Telegram, Discord, Slack, WhatsApp, Signal, SMS, Email, Home Assistant, Mattermost, Matrix, DingTalk, Feishu/Lark, WeCom, Weixin, BlueBubbles (iMessage), or your browser. The gateway is a single background process that connects to all your configured platforms, handles sessions, runs cron jobs, and delivers voice messages.
+Chat with Hermes from Telegram, Discord, Slack, WhatsApp, Signal, SMS, Email, Home Assistant, Mattermost, Matrix, DingTalk, Feishu/Lark, WeCom, Weixin, BlueBubbles (iMessage), QQ, or your browser. The gateway is a single background process that connects to all your configured platforms, handles sessions, runs cron jobs, and delivers voice messages.
 
 For the full voice feature set — including CLI microphone mode, spoken replies in messaging, and Discord voice-channel conversations — see [Voice Mode](/docs/user-guide/features/voice-mode) and [Use Voice Mode with Hermes](/docs/guides/use-voice-mode-with-hermes).
 
@@ -30,6 +30,7 @@ For the full voice feature set — including CLI microphone mode, spoken replies
 | WeCom Callback | — | — | — | — | — | — | — |
 | Weixin | ✅ | ✅ | ✅ | — | — | ✅ | ✅ |
 | BlueBubbles | — | ✅ | ✅ | — | ✅ | ✅ | — |
+| QQ | ✅ | ✅ | ✅ | — | — | — | — |
 
 **Voice** = TTS audio replies and/or voice message transcription. **Images** = send/receive images. **Files** = send/receive file attachments. **Threads** = threaded conversations. **Reactions** = emoji reactions on messages. **Typing** = typing indicator while processing. **Streaming** = progressive message updates via editing.
 
@@ -55,6 +56,7 @@ flowchart TB
     wcb[WeCom Callback]
     wx[Weixin]
     bb[BlueBubbles]
+    qq[QQ]
             api["API Server<br/>(OpenAI-compatible)"]
             wh[Webhooks]
         end
@@ -369,6 +371,7 @@ Each platform has its own toolset:
 | WeCom Callback | `hermes-wecom-callback` | Full tools including terminal |
 | Weixin | `hermes-weixin` | Full tools including terminal |
 | BlueBubbles | `hermes-bluebubbles` | Full tools including terminal |
+| QQ | `hermes-qq` | Full tools including terminal |
 | API Server | `hermes` (default) | Full tools including terminal |
 | Webhooks | `hermes-webhook` | Full tools including terminal |
 
@@ -390,5 +393,6 @@ Each platform has its own toolset:
 - [WeCom Callback Setup](wecom-callback.md)
 - [Weixin Setup (WeChat)](weixin.md)
 - [BlueBubbles Setup (iMessage)](bluebubbles.md)
+- [QQ Bot Setup](qq.md)
 - [Open WebUI + API Server](open-webui.md)
 - [Webhooks](webhooks.md)