fix(bluebubbles): add missing integration points and documentation (#6460)

- hermes_cli/skills_config.py: add platform label for per-platform skill config
- gateway/session.py: add to PII-safe platforms (no mention system)
- website/docs/user-guide/messaging/bluebubbles.md: full setup guide
- website/sidebars.ts: sidebar navigation entry
- 10 docs pages: add BlueBubbles to all platform enumerations
  (env vars, toolsets, cron delivery, gateway internals, etc.)

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, 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, 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.
 
 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).
 
@@ -27,6 +27,7 @@ For the full voice feature set — including CLI microphone mode, spoken replies
 | DingTalk | — | — | — | — | — | ✅ | ✅ |
 | Feishu/Lark | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
 | WeCom | ✅ | ✅ | ✅ | — | — | ✅ | ✅ |
+| BlueBubbles | — | ✅ | ✅ | — | ✅ | ✅ | — |
 
 **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.
 
@@ -49,6 +50,7 @@ flowchart TB
             dt[DingTalk]
     fs[Feishu/Lark]
     wc[WeCom]
+    bb[BlueBubbles]
             api["API Server<br/>(OpenAI-compatible)"]
             wh[Webhooks]
         end
@@ -352,6 +354,7 @@ Each platform has its own toolset:
 | DingTalk | `hermes-dingtalk` | Full tools including terminal |
 | Feishu/Lark | `hermes-feishu` | Full tools including terminal |
 | WeCom | `hermes-wecom` | Full tools including terminal |
+| BlueBubbles | `hermes-bluebubbles` | Full tools including terminal |
 | API Server | `hermes` (default) | Full tools including terminal |
 | Webhooks | `hermes-webhook` | Full tools including terminal |
 
@@ -370,5 +373,6 @@ Each platform has its own toolset:
 - [DingTalk Setup](dingtalk.md)
 - [Feishu/Lark Setup](feishu.md)
 - [WeCom Setup](wecom.md)
+- [BlueBubbles Setup (iMessage)](bluebubbles.md)
 - [Open WebUI + API Server](open-webui.md)
 - [Webhooks](webhooks.md)