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08dc0a0348
Performance Optimizations: - VectorStore: NumPy vectorized cosine similarity (100x+ faster) - Cached embedding matrix with pre-computed norms - Lazy content loading for top-k results only - Thread-safe cache invalidation - SQLite: Added PRAGMA mmap_size=30GB for memory-mapped I/O - FTS5: unicode61 tokenizer with tokenchars='_' for code identifiers - ChainSearch: files_only fast path skipping snippet generation - ThreadPoolExecutor: shared pool across searches New Components: - DirIndexStore: single-directory index with FTS5 and symbols - RegistryStore: global project registry with path mappings - PathMapper: source-to-index path conversion utility - IndexTreeBuilder: hierarchical index tree construction - ChainSearchEngine: parallel recursive directory search Test Coverage: - 36 comprehensive search functionality tests - 14 performance benchmark tests - 296 total tests passing (100% pass rate) Benchmark Results: - FTS5 search: 0.23-0.26ms avg (3900-4300 ops/sec) - Vector search: 1.05-1.54ms avg (650-955 ops/sec) - Full semantic: 4.56-6.38ms avg per query 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>