20260903T1532Z v0 review ratified

What. Ratified the v0 design review (D22-D27): PartialEntity gains kind (v0: person | organization, team refinement; more kinds are a registry bump); registry identifying class keyed by (claim type, entity kind); groundedness gate on identifying claims; relation-claim clause in changed-source reconciliation; M1 eval-set plan plus alignment-stability and identifying-error metrics; organizations first within bootstrap; four bottlenecks (applier FIFO priority, judge fan-out caps, materialized traversal, trust gate) explicitly deferred.

Why. Contract-level gaps cheap before milestone 3 and expensive after: untyped partials made endpoint_kinds unenforceable and starved orgs of identifying claims, leaving relation claims latent; a hallucinated identifying claim routes a silent member merge. Full argument: docs/design/v0-review.md.

Verify. D22-D27 in docs/decisions.md; kind and the groundedness rule in docs/design/interfaces.md B2; the relation-claim paragraph in architecture.md's reconciliation section.