Add Cash App Pay iOS support and update notification colors

- Add CFBundleURLTypes with payfrit scheme for Cash App redirect
- Add returnURL to Stripe PaymentSheet config
- Update Podfile to specify iOS 13.0 platform
- Change order status notification to Payfrit light green with black text

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

ios/Podfile

@@ -1,5 +1,5 @@
-# Uncomment this line to define a global platform for your project
+# Platform version for iOS
-# platform :ios, '13.0'
+platform :ios, '13.0'
 
 # CocoaPods analytics sends network stats synchronously affecting flutter build latency.
 ENV['COCOAPODS_DISABLE_STATS'] = 'true'

ios/Runner/Info.plist

@@ -68,5 +68,16 @@
 		<string>bluetooth-central</string>
 		<string>location</string>
 	</array>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>payfrit</string>
+			</array>
+		</dict>
+	</array>
 </dict>
 </plist>

lib/screens/cart_view_screen.dart

@@ -392,18 +392,22 @@ class _CartViewScreenState extends State<CartViewScreen> {
             appState.clearActiveOrder();
           }
 
-          // Show notification using global scaffold messenger key
+          // Show snackbar notification with Payfrit light green
-          // This works even after the cart screen is popped
           rootScaffoldMessengerKey.currentState?.showSnackBar(
             SnackBar(
               content: Row(
                 children: [
-                  Icon(Icons.notifications_active, color: Colors.white),
+                  const Icon(Icons.notifications_active, color: Colors.black),
-                  SizedBox(width: 8),
+                  const SizedBox(width: 8),
-                  Expanded(child: Text(update.message)),
+                  Expanded(
+                    child: Text(
+                      '${update.statusName}: ${update.message}',
+                      style: const TextStyle(color: Colors.black, fontWeight: FontWeight.w500),
+                    ),
+                  ),
                 ],
               ),
-              backgroundColor: _getStatusColorStatic(update.statusId),
+              backgroundColor: const Color(0xFF90EE90), // Payfrit light green
               duration: const Duration(seconds: 5),
               behavior: SnackBarBehavior.floating,
               margin: const EdgeInsets.only(bottom: 80, left: 16, right: 16),

lib/services/stripe_service.dart

@@ -197,6 +197,7 @@ class StripeService {
           merchantDisplayName: 'Payfrit',
           paymentIntentClientSecret: clientSecret,
           style: ThemeMode.system,
+          returnURL: 'payfrit://stripe-redirect', // Required for Cash App Pay on iOS
           appearance: const PaymentSheetAppearance(
             colors: PaymentSheetAppearanceColors(
               primary: Color(0xFF000000),