Fix API response handling: extract molecules/proteins arrays from wrapped response

Fix all TypeScript errors: remove unused imports, delete orphan reactflow components

Fix explorer service argument mismatch and hardcoded URL, duplicate param type fixes

feat: enhance visualization with mock data fallback and update readme

feat: add complete visualization system from feat/raed-ui

feat: add protein 2D/3D visualization components

feat: Complete BioFlow Orchestrator hackathon implementation

improve sidebar (cherry-picked from feat/raed-ui)

feat: Complete Qdrant pipeline with real PCA + cleanup

chore: integrate UI snapshot from raed-ui branch