delete method

@override Future<ChatResult<void>> delete(String userId)

Deletes a user permanently.

Use for hard account deletion flows (GDPR right-to-erasure or admin tools). Irreversible — the backend tombstones messages but removes the profile record; managed users belonging to the deleted parent are cascaded out too.

Implementation

@override
Future<ChatResult<void>> delete(String userId) async {
  if (!_client._users.containsKey(userId)) {
    return const ChatFailureResult(NotFoundFailure());
  }
  _client._users.remove(userId);
  return const ChatSuccess(null);
}