Add LINE channel adapter with webhook ingress and gating

README.md

@@ -6,7 +6,7 @@ Self-hosted personal AI assistant with Telegram and Terminal interfaces.
 
 - **Multi-Frontend**: Telegram bot + Terminal UI (minimal & fullscreen modes) + Web UI dashboard
 - **Multi-Model**: Anthropic Claude, OpenAI, GitHub Copilot, Gemini, Bedrock, Zhipu AI (GLM), xAI (Grok), Ollama, llama.cpp with intelligent routing
-- **Multi-Channel**: Telegram, Discord, Slack, WhatsApp, Matrix, Signal, Mattermost, Microsoft Teams, Google Chat, and iMessage (BlueBubbles) with unified adapter interface
+- **Multi-Channel**: Telegram, Discord, Slack, WhatsApp, Matrix, Signal, Mattermost, Microsoft Teams, Google Chat, LINE, and iMessage (BlueBubbles) with unified adapter interface
 - **Web Dashboard**: SPA control panel with health monitoring, chat, session browser, usage stats, and settings editor
 - **Model Switching**: Switch between cloud/local models on demand
 - **Session Persistence**: SQLite-backed conversation history
@@ -195,6 +195,17 @@ bluebubbles:
 # BlueBubbles webhook endpoint should point to:
 # POST https://<your-flynn-host>/bluebubbles/events
 
+# Optional: LINE
+line:
+  channel_access_token: "${LINE_CHANNEL_ACCESS_TOKEN}"
+  channel_secret: "${LINE_CHANNEL_SECRET}"
+  allowed_source_ids: []   # Empty = allow all users/groups/rooms
+  require_mention: true
+  mention_name: "flynn"
+
+# LINE webhook endpoint should point to:
+# POST https://<your-flynn-host>/line/events
+
 models:
   default:
     provider: anthropic