The persistence contract's rule 3 now says the store refuses, under its lock, a
write or removal at a key whose durable record is under an undeclared id, for
the store's own write API and for CultMesh single-file writes, which declare
through the catalog entry they write. The sentence that a declaring type stores
the record under its own id is corrected: Declares is registry-wide, so the
record lands under the writing type's id. The late-registration test is renamed
to match.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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