{"message":"Welcome to KhataAI Backend API","version":"1.0.0","description":"Voice-first AI-powered personal accounting system","documentation":"/docs","health":"/health","api_base":"/api","endpoints":["GET /api/info - API information","POST /api/auth/login - User authentication","GET /api/parties - Manage customers/workers/suppliers","GET /api/categories - Manage items/services","GET /api/daily/sessions - Daily khata management","POST /api/speech/process - Voice transaction processing","GET /api/analytics/summary - Business analytics"],"features":["🎤 Voice-first transaction processing","🧠 AI-powered data extraction","📊 Real-time business analytics","📱 Mobile and web support","🔒 Firebase authentication","🔄 Dual khata system (daily + overall)"],"support":{"email":"support@khataai.com","documentation":"https://github.com/your-repo/khata-ai-backend"}}