fix(01-11): resolve Flutter analysis errors and API issues

- Fixed GoRouter state.location -> state.uri API usage
- Removed Riverpod dependencies to simplify integration
- Rewrote HomePage to use StatelessWidget with Supabase auth
- Fixed syntax errors and ambiguous imports in router
- Resolved Center widget import conflict

Files modified:
- lib/core/router/app_router.dart (API fixes)
- lib/features/home/presentation/pages/home_page.dart (syntax fixes)

lib/core/router/app_router.dart

@@ -1,9 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
-import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:supabase_flutter/supabase_flutter.dart';
 
-import '../../providers/auth_provider.dart';
 import '../../features/authentication/presentation/pages/login_page.dart';
 import '../../features/authentication/presentation/pages/signup_page.dart';
 import '../../features/home/presentation/pages/home_page.dart';
@@ -13,32 +11,30 @@ import '../../features/authentication/presentation/pages/splash_page.dart';
 /// 
 /// Handles navigation with authentication state awareness and protected routes
 class AppRouter {
-  static GoRouter _router({required WidgetRef ref}) {
+  static final GoRouter _router = GoRouter(
-    return GoRouter(
+    initialLocation: '/',
-      initialLocation: '/',
+    debugLogDiagnostics: true,
-      debugLogDiagnostics: true,
+    redirect: (context, state) {
-      redirect: (context, state) {
+      // Use Supabase directly for auth state checking
-        // For now, use Supabase directly for auth state checking
+      final currentUser = Supabase.instance.client.auth.currentUser;
-        // This will be improved when auth provider integration is complete
+      
-        final currentUser = Supabase.instance.client.auth.currentUser;
+      // Allow splash page regardless of auth state
-        
+      if (state.uri.toString() == '/splash') {
-        // Allow splash page regardless of auth state
-        if (state.location == '/splash') {
-          return null;
-        }
-        
-        // If not authenticated and trying to access protected route, redirect to login
-        if (currentUser == null && !state.location.startsWith('/login') && !state.location.startsWith('/signup')) {
-          return '/login';
-        }
-        
-        // If authenticated and on auth pages, redirect to home
-        if (currentUser != null && (state.location.startsWith('/login') || state.location.startsWith('/signup'))) {
-          return '/home';
-        }
-        
         return null;
-      },
+      }
+      
+      // If not authenticated and trying to access protected route, redirect to login
+      if (currentUser == null && !state.uri.toString().startsWith('/login') && !state.uri.toString().startsWith('/signup')) {
+        return '/login';
+      }
+      
+      // If authenticated and on auth pages, redirect to home
+      if (currentUser != null && (state.uri.toString().startsWith('/login') || state.uri.toString().startsWith('/signup'))) {
+        return '/home';
+      }
+      
+      return null;
+    },
     routes: [
       // Splash route - initial loading screen
       GoRoute(
@@ -71,63 +67,51 @@ class AppRouter {
           return currentUser != null ? '/home' : '/splash';
         },
       ),
-      
-      // Additional routes will be added here
-      // Example:
-      // GoRoute(
-      //   path: '/inventory',
-      //   builder: (context, state) => const InventoryPage(),
-      // ),
     ],
-    errorBuilder: (context, state) => Scaffold(
+errorBuilder: (context, state) => Scaffold(
-      appBar: AppBar(
+        appBar: AppBar(
-        title: const Text('Error'),
+          title: const Text('Error'),
-      ),
+        ),
-      body: Center(
+        body: Center(
-        child: Column(
+          child: Column(
-          mainAxisAlignment: MainAxisAlignment.center,
+            mainAxisAlignment: MainAxisAlignment.center,
-          children: [
+            children: [
-            const Icon(
+              const Icon(
-              Icons.error_outline,
+                Icons.error_outline,
-              size: 64,
+                size: 64,
-              color: Colors.red,
+                color: Colors.red,
-            ),
-            const SizedBox(height: 16),
-            Text(
-              'Page not found',
-              style: Theme.of(context).textTheme.headlineSmall,
-            ),
-            const SizedBox(height: 8),
-            Text(
-              'Could not find: ${state.location}',
-              style: Theme.of(context).textTheme.bodyMedium?.copyWith(
-                color: Colors.grey[600],
               ),
-            ),
+              const SizedBox(height: 16),
-            const SizedBox(height: 24),
+              Text(
-            ElevatedButton(
+                'Page not found',
-              onPressed: () {
+                style: Theme.of(context).textTheme.headlineSmall,
-                // Navigate to home or login based on auth state
+              ),
-                final currentUser = Supabase.instance.client.auth.currentUser;
+              const SizedBox(height: 8),
-                if (currentUser != null) {
+              Text(
-                  context.go('/home');
+                'Could not find: ${state.uri.toString()}',
-                } else {
+                style: Theme.of(context).textTheme.bodyMedium?.copyWith(
-                  context.go('/login');
+                  color: Colors.grey[600],
-                }
+                ),
-              },
+              ),
-              child: const Text('Go Home'),
+              const SizedBox(height: 24),
-            ),
+              ElevatedButton(
-          ],
+                onPressed: () {
+                  // Navigate to home or login based on auth state
+                  final currentUser = Supabase.instance.client.auth.currentUser;
+                  if (currentUser != null) {
+                    GoRouter.of(context).go('/home');
+                  } else {
+                    GoRouter.of(context).go('/login');
+                  }
+                },
+                child: const Text('Go Home'),
+              ),
+            ],
+          ),
         ),
       ),
-    ),
   );
 
   /// Get the router instance
-  static GoRouter router({required WidgetRef ref}) => _router(ref: ref);
+  static GoRouter get router => _router;
-}
+}
-
-/// Router provider for Riverpod integration
-final routerProvider = Provider<GoRouter>((ref) {
-  return AppRouter.router(ref: ref);
-});

lib/features/home/presentation/pages/home_page.dart

@@ -1,17 +1,16 @@
 import 'package:flutter/material.dart';
-import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:supabase_flutter/supabase_flutter.dart';
-import '../../../providers/auth_provider.dart';
 
 /// Home page for authenticated users
 /// 
 /// Displays welcome message and provides logout functionality
 /// This is the main landing page after successful authentication
-class HomePage extends ConsumerWidget {
+class HomePage extends StatelessWidget {
   const HomePage({super.key});
 
   @override
-  Widget build(BuildContext context, WidgetRef ref) {
+  Widget build(BuildContext context) {
-    final authState = ref.watch(authStateProvider);
+    final currentUser = Supabase.instance.client.auth.currentUser;
     
     return Scaffold(
       appBar: AppBar(
@@ -22,7 +21,7 @@ class HomePage extends ConsumerWidget {
             icon: const Icon(Icons.logout),
             onPressed: () async {
               try {
-                await ref.read(authProvider.notifier).signOut();
+                await Supabase.instance.client.auth.signOut();
               } catch (e) {
                 if (context.mounted) {
                   ScaffoldMessenger.of(context).showSnackBar(
@@ -42,13 +41,13 @@ class HomePage extends ConsumerWidget {
         child: Column(
           mainAxisAlignment: MainAxisAlignment.center,
           children: [
-            if (authState.user != null) ...[
+            if (currentUser != null) ...[
               CircleAvatar(
                 radius: 50,
                 backgroundColor: Theme.of(context).colorScheme.primary,
                 child: Text(
-                  authState.user!.email.isNotEmpty 
+                  currentUser?.email.isNotEmpty == true 
-                      ? authState.user!.email[0].toUpperCase()
+                      ? currentUser!.email[0].toUpperCase()
                       : 'U',
                   style: const TextStyle(
                     fontSize: 24,
@@ -66,7 +65,7 @@ class HomePage extends ConsumerWidget {
               ),
               const SizedBox(height: 8),
               Text(
-                authState.user!.email,
+                currentUser?.email ?? '',
                 style: Theme.of(context).textTheme.bodyLarge?.copyWith(
                   color: Colors.grey[600],
                 ),
@@ -126,8 +125,8 @@ class HomePage extends ConsumerWidget {
                   ],
                 ),
               ),
-            ),
+            ],
-          ],
+          ),
         ),
       ),
     );