feat: implement responsive, theme-adaptive visitor analytics modal dialog box

feat: use robust Pydantic structured output for 100% stable graph relationships extraction

fix: lower neocortex input word guard to 3 to support short statements

fix: bulletproof node validation - block ALL sentences and filler text from graph

refactor: child-brain knowledge extraction - simple concept nodes only

fix: extract only real-world knowledge entities, not chat metadata

fix: remove example contamination from neocortex extraction prompt

fix: strict user isolation — remove all user_id IS NULL leaks

fix: Use IS NULL for Neo4j legacy compatibility across all graph queries

feat: Add Multi-User Persona memory compartmentalization

Phase 2 Complete: Real-time Neural Mesh highlighting implemented.

Final Evolution: Secure Neural Build (Full Scrub & Sync)