{"service":"petnary-chatbot-backend","status":"ok","model":"grok-4-latest","endpoints":{"chat":"POST /api/chatbot","chatStream":"POST /api/chatbot/stream","health":"GET  /api/chatbot/health","invoice":"GET  /invoice/:token","auth":"GET  /auth/callback","console":"GET  /console","completions":"POST /v1/chat/completions"}}