{"message":"AI Data Intelligence Service is running","service":"ai-backend-services","version":"1.0.0","features":["Vietnamese AI Chat with educational context","Student Q&A with course material integration","Automated question generation (Multiple Choice, Open-ended, Fill-in-blank)","AI-powered answer grading with detailed feedback","Document embedding and vector search","Real-time streaming responses","Automated exam marking and feedback","Document processing and RAG capabilities"]}