{"service":"ChatDemos AI","version":"2.0.0","status":"operational","architecture":"FastAPI + Pydantic AI + OpenRouter + Postgres/pgvector","phase":"Phase 5 - HITL System Complete","features":{"security":"4 layers enabled","database":"Postgres connected","hitl":{"authority_states":["ai","human","closed"],"ai_muting":"strict enforcement","handoff_tracking":"complete audit trail","dashboard_integration":"real-time sync"}}}