v2.2.0

Changelog

• fefe62a Add TurboQuant-style vector quantization prototype and benchmark (#181)
• 5e4d0a2 Add meaningful assertions to CLI serve/version tests (#188)
• c85e58b Add quantized embedding sidecar storage and backfill plumbing (+2 more) (#182)
• 3d744cd Add tests for directory watch and re-rank HTTP paths (#211)
• f42a4d6 Add tests for folder-context and document-list database APIs (#210)
• 6679c14 Add tests for parser PPTX and text-split branches (#212)
• 0973dbd Benchmark768Dim and BitWidth.Levels fixes (#189)
• d9c9ff5 Binary-quantized vector search, dimension tracking, and VectorStore seam (+3 more) (#180)
• b4a413e Build(deps): bump actions/checkout in the github-actions group (#204)
• a0c9f4b Build(deps): bump modernc.org/sqlite in the go-dependencies group (#205)
• 5e7c244 Enable secret scanning and push protection (#206)
• d38da8d Vector index lifecycle: incremental updates, external-write detection, and persistence (#179)
• 635705a feat(mcp): add fromLine/maxLines to read_document (#195)
• a3970fc feat(search): Add optional LLM re-ranking via Ollama for search resu... (#196)
• 56a142a release: v2.2.0
• ba6ba49 test(config): cover load, reload, and save error paths (#209)
• 0514db4 test(engine): add unit tests for BackfillQuantSidecars (#187)