[Yasou13]

Round 14 adds lossless Turkish article chunking for new revisions, optional BGE reranking, and query embedding outside the shared SQLite search lock. The frozen dev benchmark selects vector weight 8 with reranking off by default (MRR 0.3953 → 0.5663).

The SDK and CLI now report terminal chunk failures promptly and support deletion by source. Search cache configuration is explicit, OpenAI/Ollama SDKs become core dependencies, and tag releases use PyPI trusted publishing.

Validation at 95c554f:

• Independent full R14-premerge gate PASS: lane, lock, sync, Ruff, mypy, layer imports, 1,860 local tests and 10 optional MCP tests.
• External frozen Tier M article-boundary and lossless-slice acceptance test PASS.
• GitHub MESA CI and MESA external release gates PASS, including Python 3.11/3.12/3.13, coverage, security, packaging, Docker and Compose.
• Independent review found no merge-blocking defects; no code changes were needed.

Benchmark methodology and limitations are recorded in docs/retrieval-and-graph.md. Ambiguous admitted chunk prefixes fail closed with HTTP 409, as documented and tested.

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