feat(01-11): integrate router into main app with error handling

- Updated main.dart to use ProviderScope and MaterialApp.router
- Integrated AppRouter with proper GoRouter configuration
- Added comprehensive error handling with ErrorBoundary widget
- Updated HomePage to use auth provider for logout functionality
- Fixed SplashPage to use GoRouter navigation
- Implemented router provider for Riverpod integration
- Added proper resource disposal and restart functionality

Files modified:
- lib/main.dart (complete app structure)
- lib/core/router/app_router.dart (router integration)
- lib/features/authentication/presentation/pages/splash_page.dart (navigation fix)
- lib/features/home/presentation/pages/home_page.dart (logout implementation)

lib/core/router/app_router.dart

@@ -13,19 +13,13 @@ import '../../features/authentication/presentation/pages/splash_page.dart';
 /// 
 /// Handles navigation with authentication state awareness and protected routes
 class AppRouter {
-  static final GoRouter _router = GoRouter(
-    initialLocation: '/',
-    debugLogDiagnostics: true,
-    redirect: (context, state) {
-      final authState = state.extra as AuthState?;
-      
-      // If no auth state in extra, check from provider
-      if (authState == null) {
-        final container = ProviderScope.containerOf(context, listen: false);
-        final authNotifier = container.read(authStateProvider.notifier);
-        
-        // For now, we'll use Supabase directly for auth state checking
-        // This will be improved when auth provider is fully integrated
+  static GoRouter _router({required WidgetRef ref}) {
+    return GoRouter(
+      initialLocation: '/',
+      debugLogDiagnostics: true,
+      redirect: (context, state) {
+        // For now, use Supabase directly for auth state checking
+        // This will be improved when auth provider integration is complete
         final currentUser = Supabase.instance.client.auth.currentUser;
         
         // Allow splash page regardless of auth state
@@ -44,47 +38,28 @@ class AppRouter {
         }
         
         return null;
-      }
-      
-      // TODO: Update to use AuthState when fully integrated
-      // For now, use Supabase auth state directly
-      final currentUser = Supabase.instance.client.auth.currentUser;
-      
-      if (currentUser == null && !state.location.startsWith('/login') && !state.location.startsWith('/signup')) {
-        return '/login';
-      }
-      
-      if (currentUser != null && (state.location.startsWith('/login') || state.location.startsWith('/signup'))) {
-        return '/home';
-      }
-      
-      return null;
-    },
+      },
     routes: [
       // Splash route - initial loading screen
       GoRoute(
         path: '/splash',
-        name: 'splash',
         builder: (context, state) => const SplashPage(),
       ),
       
       // Authentication routes (public)
       GoRoute(
         path: '/login',
-        name: 'login',
         builder: (context, state) => const LoginPage(),
       ),
       
       GoRoute(
         path: '/signup',
-        name: 'signup',
         builder: (context, state) => const SignupPage(),
       ),
       
       // Protected routes (require authentication)
       GoRoute(
         path: '/home',
-        name: 'home',
         builder: (context, state) => const HomePage(),
       ),
       
@@ -101,7 +76,6 @@ class AppRouter {
       // Example:
       // GoRoute(
       //   path: '/inventory',
-      //   name: 'inventory',
       //   builder: (context, state) => const InventoryPage(),
       // ),
     ],
@@ -150,10 +124,10 @@ class AppRouter {
   );
 
   /// Get the router instance
-  static GoRouter get router => _router;
+  static GoRouter router({required WidgetRef ref}) => _router(ref: ref);
 }
 
 /// Router provider for Riverpod integration
 final routerProvider = Provider<GoRouter>((ref) {
-  return AppRouter.router;
+  return AppRouter.router(ref: ref);
 });