{"message":"Material Assistant API","version":"0.46.0","description":"API for construction materials, raw materials, and chemical queries with session management","features":["Session-based conversation management","Automatic conversation history preservation","Per-user conversation isolation","Automatic session cleanup","Header-based platform detection"],"endpoints":{"POST /query":"Process a user query (with session management)","POST /clear-chat":"Reset conversation history for a session","GET /sessions":"Get information about active sessions","GET /health":"Health check","GET /auth/status":"Check current authentication status","GET /auth/url":"Get OAuth2 login parameters and URL (with session validation)","POST /logout":"Logout user and clear session"}}