Fix event image field name and outstanding_balance type cast

- Use cover_url (API field) instead of image_url for events
- Add errorBuilder fallback for broken image URLs
- Parse outstanding_balance as int before comparison (API returns string)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

devtools_options.yaml

+description: This file stores settings for Dart & Flutter DevTools.
+documentation: https://docs.flutter.dev/tools/devtools/extensions#configure-extension-enablement-states
+extensions:

lib/core/theme/app_theme.dart

@@ -27,6 +27,12 @@ class AppTheme {
       useMaterial3: true,
       colorScheme: colorScheme,
       fontFamily: 'Cairo',
+      textTheme: const TextTheme().apply(fontFamily: 'Cairo').copyWith(
+        bodyLarge: const TextStyle(fontFamily: 'Cairo', height: 1.5),
+        bodyMedium: const TextStyle(fontFamily: 'Cairo', height: 1.5),
+        bodySmall: const TextStyle(fontFamily: 'Cairo', height: 1.5),
+        labelLarge: const TextStyle(fontFamily: 'Cairo', height: 1.4),
+      ),
       scaffoldBackgroundColor: const Color(0xFFF8FAFC),
       appBarTheme: AppBarTheme(
         backgroundColor: Colors.white,
@@ -55,7 +61,8 @@ class AppTheme {
           backgroundColor: primaryColor,
           foregroundColor: Colors.white,
           elevation: 0,
-          padding: const EdgeInsets.symmetric(horizontal: 32, vertical: 16),
+          minimumSize: const Size(double.infinity, 52),
+          padding: const EdgeInsets.symmetric(horizontal: 32, vertical: 14),
           shape: RoundedRectangleBorder(
             borderRadius: BorderRadius.circular(14),
           ),
@@ -63,6 +70,7 @@ class AppTheme {
             fontFamily: 'Cairo',
             fontSize: 16,
             fontWeight: FontWeight.w600,
+            height: 1.4,
           ),
         ),
       ),

lib/features/events/events_screen.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_animate/flutter_animate.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import '../../core/api/api_service.dart';
+import '../../core/auth/auth_store.dart';
 import '../../core/l10n/app_localizations.dart';
 import '../../core/theme/app_theme.dart';
 import '../../core/widgets/loading_overlay.dart';
@@ -82,13 +83,16 @@ class _EventCard extends StatelessWidget {
               color: AppTheme.primaryColor.withValues(alpha: 0.08),
               borderRadius: const BorderRadius.vertical(top: Radius.circular(18)),
             ),
-            child: event['image_url'] != null
+            child: (event['cover_url'] ?? event['image_url']) != null
                 ? ClipRRect(
                     borderRadius: const BorderRadius.vertical(top: Radius.circular(18)),
                     child: Image.network(
-                      event['image_url'],
+                      event['cover_url'] ?? event['image_url'],
                       width: double.infinity,
                       fit: BoxFit.cover,
+                      errorBuilder: (_, __, ___) => Center(
+                        child: Icon(Icons.event, size: 48, color: AppTheme.primaryColor.withValues(alpha: 0.3)),
+                      ),
                     ),
                   )
                 : Center(
@@ -143,8 +147,33 @@ class _EventCard extends StatelessWidget {
                     onPressed: isRegistered
                         ? null
                         : () async {
-                            await ref.read(apiServiceProvider).registerForEvent(event['uuid'], '');
+                            final participants = ref.read(authStoreProvider).participants;
+                            if (participants.isEmpty) {
+                              if (context.mounted) {
+                                ScaffoldMessenger.of(context).showSnackBar(
+                                  const SnackBar(content: Text('لا يوجد مشتركين مربوطين بحسابك')),
+                                );
+                              }
+                              return;
+                            }
+                            try {
+                              await ref.read(apiServiceProvider).registerForEvent(
+                                    event['uuid'],
+                                    participants.first['uuid'] ?? '',
+                                  );
                               ref.invalidate(eventsProvider);
+                              if (context.mounted) {
+                                ScaffoldMessenger.of(context).showSnackBar(
+                                  const SnackBar(content: Text('تم التسجيل بنجاح')),
+                                );
+                              }
+                            } catch (_) {
+                              if (context.mounted) {
+                                ScaffoldMessenger.of(context).showSnackBar(
+                                  const SnackBar(content: Text('حدث خطأ أثناء التسجيل')),
+                                );
+                              }
+                            }
                           },
                     style: ElevatedButton.styleFrom(
                       backgroundColor: isRegistered ? Colors.grey.shade200 : AppTheme.primaryColor,

lib/features/home/dashboard_screen.dart

@@ -233,7 +233,7 @@ class DashboardScreen extends ConsumerWidget {
                       ],
                     ),
                   ),
-                  if ((child['outstanding_balance'] ?? 0) > 0)
+                  if ((int.tryParse(child['outstanding_balance']?.toString() ?? '0') ?? 0) > 0)
                     Container(
                       padding: const EdgeInsets.symmetric(
                         horizontal: 10,

lib/main.dart

 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'core/l10n/app_localizations.dart';
 import 'core/l10n/locale_provider.dart';
@@ -34,8 +35,9 @@ class ElCaptainApp extends ConsumerWidget {
       supportedLocales: const [Locale('ar'), Locale('en')],
       localizationsDelegates: const [
         AppLocalizations.delegate,
-        DefaultMaterialLocalizations.delegate,
-        DefaultWidgetsLocalizations.delegate,
+        GlobalMaterialLocalizations.delegate,
+        GlobalWidgetsLocalizations.delegate,
+        GlobalCupertinoLocalizations.delegate,
       ],
       routerConfig: router,
       builder: (context, child) {