feat: redesign multi-hop reasoning, add sticky layout, query logs history tracking, and hybrid fallback search

feat: improve graph visualization, stabilize multi-hop path reasoning, and update multi-hop page styling

fix: resolve graph edges rendering, fallback query search, community generation timeouts, query session persistence, and new chat functionality

feat: simplify graph visualization to 3D only, implement 3D camera controls, and persist document states globally

feat: implement 3D visualization toggle and Retrieval Context Preview

Fix: Resolve 0-entity extraction error by adding NVIDIA LLM integration and robust error handling

feat: complete frontend and backend integration and security configurations