add notification, fix appbar,fix style subscription

lib/presentation/screens/qr_scan_screen.dart

@@ -6,6 +6,7 @@ import 'package:mobile_scanner/mobile_scanner.dart';
 import 'package:go_router/go_router.dart';
 import 'package:be_happy/di/service_locator.dart';
 import 'package:be_happy/domain/usecase/get_scooter_by_title_usecase.dart';
+import '../components/custom_app_bar.dart';
 import '../components/gradient_button.dart';
 
 class QrScanScreen extends StatefulWidget {
@@ -149,15 +150,17 @@ class _QrScanScreenState extends State<QrScanScreen> {
             ),
           ),
 
+          // ✅ ИЗМЕНЕНО: прижимаем аппбар к левому краю
           SafeArea(
-            child: Padding(
-              padding: const EdgeInsets.symmetric(horizontal: 40),
               child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start, // ✅ Выравнивание по левому краю
                 children: [
+                  const SizedBox(height: 16),
+                  CustomAppBar(title: "Сканирование QR-кода"),
                   const SizedBox(height: 60),
                   const Text(
                     'Наведите рамку на QR-код — номер будет распознан автоматически',
-                    textAlign: TextAlign.center,
+                    textAlign: TextAlign.center, 
                     style: TextStyle(
                       color: Colors.white,
                       fontSize: 16,
@@ -170,7 +173,6 @@ class _QrScanScreenState extends State<QrScanScreen> {
                 ],
               ),
             ),
-          ),
 
           SafeArea(
             child: Align(