sendOperation method

@override Future<void> sendOperation(Operation operation)

Sends an operation to the server/peers.

Implementation

@override
Future<void> sendOperation(Operation operation) async {
  // Ephemeral operations should bypass persistence if possible to avoid DB contention.
  // They are only useful in real-time.
  const transientOps = {'CURSOR_MOVE', 'GHOST_UPDATE', 'PRESENCE_UPDATE'};
  if (transientOps.contains(operation.type)) {
    if (_innerClient != null && _isConnected) {
      // Send directly, skip queue
      await _innerClient!.sendOperation(operation);
      return;
    }
    // If offline, we just drop them, as they are real-time only.
    print('OfflineClient: Dropping transient operation ${operation.type} because offline');
    return;
  }

  // Outbox pattern: Always queue first to ensure persistence against crashes/network loss
  await _queueOperation(operation);

  // Then attempt to flush (send to server)
  _flushQueue();
}