v0.93.1

Release Notes — v0.93.1

Released: 2026-06-08

A packaging-correctness release that completes the hybrid-retrieval work shipped
in 0.93.0.

Changed

• Promoted doc-kg to a core runtime dependency (previously an optional
  kgdeps / all extra). Every KG operation — build, reindex, query,
  pack, stats — requires DocKG via _load_dockg(), and DocKG's heavy
  transitive deps (lancedb, sentence-transformers) are already core, so a
  plain pip install diary-kg now yields a fully working package instead of one
  that fails at runtime with ImportError: doc-kg is not installed.

Fixed

• Corrected the doc-kg version floor from >=0.15.0 to >=0.15.6. The hybrid
  dense + lexical retrieval added in 0.93.0 calls GraphStore.search_lexical(),
  which only exists in doc-kg 0.15.6+; the looser constraint could resolve an
  incompatible doc-kg and break query() / pack().

Included from 0.93.0

• Hybrid dense + lexical (BM25) retrieval for query() and pack() via
  DiaryKG._fused_chunk_seeds() — reciprocal rank fusion of the dense vector
  channel with the FTS5/BM25 lexical channel, so exact-phrase diary queries
  surface the right entry instead of being buried by the embedding model.
  Degrades cleanly to pure dense ranking when nodes_fts is absent.

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Full changelog: CHANGELOG.md