direct_conversation_terminal_forbidden· reason_code· applies to event_envelope, auth_decision, state_resolutionThe ak.self.events.command.submit.v1 profile terminal guard rejected ak.realm.destroy or ak.realm.tombstone against the canonical Direct Conversation Realm. DM coordinates are permanent and successor-free. Reversible archive/freeze and their reverse transitions remain subject to ordinary authority and do not match this reason. The rejection writes nothing; see zh/identity/contact-and-direct-conversation.md §8.1 and contract-registry.json operation_registry.direct_conversation_admission_mappings.