v2.20.0 - Unified PostgreSQL, Authenticated Web UI & Robust Ingestion

What's Changed in ContextCortex v2.20.0

Highlights & Major Features

• Unified PostgreSQL & Connection Adapter: Seamless database compatibility across SQLite and PostgreSQL with PostgresConnectionAdapter (PR #68, #72).
• Authenticated Web UI & RBAC: Session management, admin dashboard requests, and role-based access control in the modern React frontend (PR #75).
• Multi-Vector Store Switching: Dynamic runtime switching between Chroma, Qdrant, and PGVector with safe index rebuild coordination (PR #67, #71).
• Safe Embedding Model Transitions: Model dimension verification, fallback protection, and coordinated vector collection reindexing (PR #73).
• Local Storage & PDF Extraction: Robust local file indexing and PDF processing pipelines (PR #61, #66).
• Multi-Provider Git Sync: Host vault support for GitHub, GitLab, and Gitea with accurate incremental sync progress tracking (PR #62, #64, #65).
• Enterprise Build Compatibility: Fully compatible with offline/airgapped npm registries and package mirrors (PR #76).

Quality & Test Suite

• 618 backend tests passing.
• 328 frontend unit tests passing across 33 test suites.
• Full type-safety across Python FastAPI and TypeScript React codebases.