feat: add remote pull and push

lib/views/bar_screen_view.dart

@@ -15,6 +15,7 @@ import 'package:flutter_slidable/flutter_slidable.dart';
 import '../models/bar_tab.dart';
 import '../models/product.dart';
 import '../models/tab_item.dart';
+import '../models/remote_command.dart';
 import '../services/product_service.dart';
 import '../utils/app_updater.dart';
 import '../viewmodels/bar_screen_view_model.dart';
@@ -38,6 +39,43 @@ class _BarScreenViewState extends State<BarScreenView> {
     });
   }
 
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+    _checkRemoteEvent();
+  }
+
+  @override
+  void didUpdateWidget(covariant BarScreenView oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    _checkRemoteEvent();
+  }
+
+  void _checkRemoteEvent() {
+    final viewModel = context.read<BarScreenViewModel>();
+    final event = viewModel.lastRemoteEvent;
+    if (event == null) return;
+
+    viewModel.clearRemoteEvent();
+
+    if (event.type == RemoteSyncEventType.tabClosedRemotely) {
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        if (!mounted) return;
+        final l10n = AppLocalizations.of(context);
+        final message = l10n.tabClosedRemotely(
+          event.tabCustomerName ?? '',
+          event.requestedBy ?? '',
+        );
+        ScaffoldMessenger.of(context).showSnackBar(
+          SnackBar(
+            content: Text(message),
+            behavior: SnackBarBehavior.floating,
+          ),
+        );
+      });
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     final l10n = AppLocalizations.of(context);
@@ -83,7 +121,7 @@ class _BarScreenViewState extends State<BarScreenView> {
           const SizedBox(width: 6),
           IconButton(
             tooltip: l10n.refresh,
-            onPressed: () => viewModel.load(),
+            onPressed: () => viewModel.loadAndSync(),
             icon: const Icon(Icons.refresh_rounded),
           ),
           const SizedBox(width: 6),