{"name":"Embeddix API","version":"0.1.0","endpoints":{"GET /health":"Health check","GET /api/chat/stream":"SSE streaming connection","POST /api/chat/messages":"Send a chat message","POST /api/audio/upload":"Upload audio note (multipart/form-data)","GET /api/audio/:audioId":"Serve stored audio file","GET /api/metrics":"Operational metrics","GET /api/calls/ws":"WebSocket voice call endpoint","GET /api/calls":"List active call sessions","GET /api/calls/:callId":"Get call session detail"}}