docs: add QQBot to all 14 docs pages (full platform parity)

- sidebars.ts: sidebar navigation entry
- webhooks.md: deliver field routing table
- configuration.md: platform keys list
- sessions.md: platform identifiers table
- features/cron.md: delivery target table
- developer-guide/architecture.md: adapter listing
- developer-guide/cron-internals.md: delivery target table
- developer-guide/gateway-internals.md: file tree listing
- guides/cron-troubleshooting.md: supported platforms list
- integrations/index.md: platform links list
- reference/toolsets-reference.md: toolset table

(qqbot.md, environment-variables.md, and messaging/index.md were
already included in the contributor's original PR)

website/docs/developer-guide/architecture.md

@@ -120,7 +120,7 @@ hermes-agent/
 │   └── platforms/            # 18 adapters: telegram, discord, slack, whatsapp,
 │                             #   signal, matrix, mattermost, email, sms,
 │                             #   dingtalk, feishu, wecom, wecom_callback, weixin,
-│                             #   bluebubbles, homeassistant, webhook, api_server
+│                             #   bluebubbles, qqbot, homeassistant, webhook, api_server
 │
 ├── acp_adapter/              # ACP server (VS Code / Zed / JetBrains)
 ├── cron/                     # Scheduler (jobs.py, scheduler.py)

website/docs/developer-guide/cron-internals.md

@@ -180,6 +180,7 @@ Cron job results can be delivered to any supported platform:
 | WeCom | `wecom` | Deliver to WeCom |
 | Weixin | `weixin` | Deliver to Weixin (WeChat) |
 | BlueBubbles | `bluebubbles` | Deliver to iMessage via BlueBubbles |
+| QQ Bot | `qqbot` | Deliver to QQ (Tencent) via Official API v2 |
 
 For Telegram topics, use the format `telegram:<chat_id>:<thread_id>` (e.g., `telegram:-1001234567890:17585`).
 

website/docs/developer-guide/gateway-internals.md

@@ -162,6 +162,7 @@ gateway/platforms/
 ├── wecom.py             # WeCom (WeChat Work) callback
 ├── weixin.py            # Weixin (personal WeChat) via iLink Bot API
 ├── bluebubbles.py       # Apple iMessage via BlueBubbles macOS server
+├── qqbot.py             # QQ Bot (Tencent QQ) via Official API v2
 ├── webhook.py           # Inbound/outbound webhook adapter
 ├── api_server.py        # REST API server adapter
 └── homeassistant.py     # Home Assistant conversation integration