{"service":"Aurify Bullion Chatbot API","version":"2.0.0","llm":"Anthropic claude-haiku-4-5","voice":"OpenAI Whisper + TTS (if OPENAI_API_KEY set)","status":"running","endpoints":{"chat":"POST /chat","chart":"POST /chart","voice_chat":"POST /voice/chat","health":"GET  /health","rates":"GET  /rates/live","summary":"GET  /summary","retrain":"POST /retrain  [admin]","refresh":"POST /refresh  [admin]"}}