watch_set_others_audit_missing· reason_code· applies to auth_decisionA `ak.strand.watch.set` write that uses `ak.strand.watch.set.others` to set another actor's watch state was rejected because it lacked semantic_refs[role=audit_pair] to a same-batch `ak.audit.accessed` event, or the paired audit payload did not identify the same writer DID, target actor DID, typed current result id, paired event id/digest, and before/after heads. See zh/models/strand-and-message.md §8.4.