{"message":"AI Intelligence Graph API","version":"2.0.0","features":{"pdf_processing":"Process PDFs and extract knowledge graphs","graph_visualization":"Get Cytoscape.js compatible graph data","similarity_search":"Find similar documents (if Qdrant available)","vector_search":"Semantic search across documents (if Qdrant available)"},"endpoints":{"process_pdf":"POST /pdfgraph/process-pdf - Process PDF and get graph data","health":"GET /health - Health check","graph":"GET /pdfgraph/graph - Get current knowledge graph"},"documentation":{"swagger":"/docs","redoc":"/redoc"},"note":"Qdrant is optional. PDF processing works without it."}