Phase 1: Project Foundation & Infrastructure [DONE] Initialize Poetry project (pyproject.toml) [DONE] Configure Code Quality Tools (flake8, black, mypy) [DONE] Create backend/config.py (Pydantic settings) [DONE] Setup Structured Logging (backend/core/logging.py) [DONE] Create Custom Exceptions (backend/core/exceptions.py) Phase 2: Core Analysis Engine [DONE] Implement ASTParser (backend/analysis/ast_parser.py) [DONE] Define CodeChunk model (backend/analysis/models.py) [DONE] Implement Chunker Strategy (backend/analysis/chunker.py) [DONE] Implement DependencyGraph (backend/analysis/graph.py) [DONE] Unit Test Analysis Engine Phase 3: Storage & Indexing [DONE] Setup SQLite with SQLAlchemy (backend/storage/database.py) [DONE] Implement ASTRepository (backend/storage/repositories/ast_repository.py) [DONE] Implement VectorStore (FAISS wrapper) [DONE] Implement InvertedIndex (BM25) [DONE] Integration Test: Storage persistence Phase 4: Retrieval & Ranking [DONE] Implement HybridSearch (RRF) [DONE] Implement Reranker (Cross-encoder) [DONE] Implement CompletenessCheck [DONE] Implement ContextAssembler [DONE] Verification: Retrieval Accuracy Benchmarks (Components Tested) Phase 5: API & Integration [DONE] Setup FastAPI App (backend/api/main.py) [DONE] Implement Query Endpoints (backend/api/routes/query.py) [DONE] Implement System Endpoints (backend/api/routes/system.py) [DONE] Implement File Watcher (backend/watcher/monitor.py) [DONE] E2E Test: Full System Flow (tests/e2e/test_full_flow.py).