scope_unavailable· reason_code· applies to state_resolutionSub-reason for failed_precondition when an object write references an effective scope whose Circle or parent Realm has been tombstoned/destroyed and cannot accept new writes. Projections may surface the same string as a non-error status marker. See zh/models/realm-and-space.md §2.6.1 and zh/models/circle.md §9.2.