Somna AI - Connection Guide
===========================

1. Backend URLs:
   - API Base URL: http://localhost:3000 (or your configured HOST:PORT)
   - Socket.io URL: ws://localhost:3000 (or your configured HOST:PORT)
   - Static Web UI: http://localhost:3000/index.html

2. Connecting from the Frontend:
   - By default, the frontend connects to the current host.
   - If the backend is running on a different server, open the "Backend Config" section in the sidebar.
   - Enter the full URL (e.g., http://192.168.1.10:3000) and click "Применить и переподключить".

3. Socket.io Events:
   - 'join_chat': { sessionId: string, userId: string } - Join or resume session.
   - 'send_message': { content: string, sessionId: string } - Send user message.
   - 'typing': { isTyping: boolean } - Notify typing status.
   - 'clear_history': Clear session history.

4. API Endpoints:
   - POST /chat/message: Send a message via REST (if needed).
   - GET /chat/history/:sessionId: Get session history.