Simplify sample data loading with direct SQL to fix HF Spaces connection issues

🔧 Fix SQLAlchemy Session Issues for Sample Data Loading

🔧 Fix Sample Data Loading for HF Spaces

Add Perfect Sample Data for HF Spaces Demo

Add Perfect Demo Environment for HF Spaces - Complete multi-agent trace with rich analysis and auto-loading system

🔒 Implement User Privacy Protection for HF Spaces

🔧 Fix '/logs' permission denied error in HF Spaces

🧹 Clean up: Remove backend/scripts/ and __pycache__ files

🚀 Deploy AgentGraph: Complete agent monitoring and knowledge graph system