`docs/installation.md` claimed the full package contained every extra. It
pulls `docling`, `voyageai`, `cohere`, `zeroentropy`, `cross-encoder` and
`tui`, so `jina`, `s3` and `ingester` need installing separately. Without
`jina`, `provider: jina-local` falls back to no reranking. Anthropic is not
built in, and only the slim Docker image is published.
`docs/tuning.md` pointed at `claim_timeout_s`, which `WorkerConfig` now
rejects.
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