Separate shared optimistic values from query-owned and independent read lifetimes. Add opaque generated field handles, explicit readonly-safe detachment, owner status, query refresh routing, and atomic hydration validation. Preserve replay fencing and native/CRDT writes without automatic leaf fallback.
Regenerate first-party bindings, update authoring guidance, and test browser replay, StrictMode, transport recovery and independent lifetimes. Local only: interface search/indexing and activated reflection remain planned; remaining browser acceptance is recorded in the A-C-B handoff.