v0.99.0

Changed

• Breaking: the PostgreSQL, plain SQLite and in-memory vector stores refuse a model other than the one their vectors
  were written with. VectorStoreBase now implements BindIdentity/BoundIdentity: binding a different identity on
  the same instance throws EmbeddingModelMismatchException, and the PostgreSQL and SQLite stores record the identity in
  a fluxindex_vector_identity table (created on first use) and compare it at the next write or search — so a later
  request scope (both stores are registered Scoped) or process bound to another model is refused instead of mixing two
  models' vectors in one table. A store that holds vectors but no record (written before this release) adopts the bound
  identity with a warning; ClearAsync removes the record. A custom VectorStoreBase store gets the in-instance check
  and can persist the record by overriding ReadRecordedIdentityAsync / WriteRecordedIdentityAsync /
  ForgetRecordedIdentityAsync. EmbeddingIdentityRecord (Core) is the shared record format. BindIdentity(null)
  throws ArgumentNullException: a test double for IEmbeddingService used with one of these stores (directly, or through
  a pipeline that binds the pair, as FluxFeed does) must return an identity from GetIdentity().

Documentation

• The README states the SQLite stores' measured search latency: full scan p50 6.6 s vs sqlite-vec 45 ms over 43,293
  vectors (identical top 10), with the guidance to use sqlite-vec past a few thousand chunks.

Fixed

• Breaking: a Qdrant collection named without the model refuses a switched model after a restart too. With
  CollectionNamingStrategy.Fixed, the store records the bound embedding identity (provider, model, dimension, revision)
  in the collection metadata and compares it when a later instance — another process, a restart — binds an identity:
  a different one throws EmbeddingModelMismatchException instead of storing and searching vectors of two models in
  one collection. A collection that holds points but no record (written before this release) adopts the bound identity
  with a warning; recording leaves the collection's other settings (quantization) as they are. ModelFingerprint
  collections already carry the model in their name and are unchanged. A Qdrant server that keeps no collection metadata
  falls back to the in-process check.
• Breaking: QdrantVectorStore.ClearAsync clears the store's collection on a new instance too. It used to return
  without deleting anything until the instance had stored or searched once, so a startup clear (a reset command, a test
  fixture) left the data an earlier process wrote. It now clears the collection the naming strategy names — the base name
  (Fixed), or the base name plus the bound identity's fingerprint (ModelFingerprint) — and a missing collection is
  nothing to clear. With ModelFingerprint, no bound identity and nothing resolved yet it throws
  InvalidOperationException instead of guessing; a failed delete now propagates instead of being logged and treated as
  done. Migration: bind the identity before clearing a ModelFingerprint store directly, and handle the delete failure
  where you call it.

Dependencies

• Re-pinned sibling package(s) FileFlux 0.63.1 -> 0.64.0, FluxCurator 0.15.0 -> 0.16.0.
• Re-pinned sibling package(s) FileFlux 0.64.0 -> 0.65.0.