feat: add localisation

lib/views/product_list_view.dart

@@ -5,6 +5,8 @@ import 'package:go_router/go_router.dart';
 import 'package:provider/provider.dart';
 
 import '../viewmodels/product_list_view_model.dart';
+import '../l10n/app_localizations.dart';
+import '../l10n/app_localizations_helpers.dart';
 
 class ProductListView extends StatefulWidget {
   const ProductListView({super.key});
@@ -26,6 +28,7 @@ class _ProductListViewState extends State<ProductListView> {
   @override
   Widget build(BuildContext context) {
     final viewModel = context.watch<ProductListViewModel>();
+    final l10n = AppLocalizations.of(context);
 
     return Scaffold(
       appBar: AppBar(
@@ -36,7 +39,7 @@ class _ProductListViewState extends State<ProductListView> {
               icon: const Icon(Icons.arrow_back),
             ),
             const SizedBox(width: 8),
-            const Text('Products'),
+            Text(l10n.products),
           ],
         ),
       ),
@@ -44,7 +47,7 @@ class _ProductListViewState extends State<ProductListView> {
       floatingActionButton: FloatingActionButton.extended(
         onPressed: () => context.go('/products/new'),
         icon: const Icon(Icons.add),
-        label: const Text('Add product'),
+        label: Text(l10n.addProduct),
       ),
       body: Builder(
         builder: (context) {
@@ -53,11 +56,13 @@ class _ProductListViewState extends State<ProductListView> {
           }
 
           if (viewModel.errorMessage != null) {
-            return Center(child: Text(viewModel.errorMessage!));
+            return Center(
+              child: Text(l10n.localizedError(viewModel.errorMessage)),
+            );
           }
 
           if (viewModel.products.isEmpty) {
-            return const Center(child: Text('No products yet.'));
+            return Center(child: Text(l10n.noProductsYet));
           }
 
           return ListView.separated(
@@ -73,22 +78,28 @@ class _ProductListViewState extends State<ProductListView> {
                     width: 56,
                     height: 56,
                     child: Center(
-                      child: product.imagePath != null &&
+                      child:
+                          product.imagePath != null &&
                               product.imagePath!.isNotEmpty
                           ? Image.file(
                               File(product.imagePath!),
                               fit: BoxFit.contain,
                               cacheWidth: 112,
-                              errorBuilder:
-                                  (context, error, stackTrace) =>
-                                      const Icon(Icons.image_not_supported_outlined),
+                              errorBuilder: (context, error, stackTrace) =>
+                                  const Icon(
+                                    Icons.image_not_supported_outlined,
+                                  ),
                             )
                           : const Icon(Icons.image_not_supported_outlined),
                     ),
                   ),
                   title: Text(product.name),
                   subtitle: Text(
-                    '${product.category} • ${product.formattedPrice} • Stock: ${product.stockQuantity}',
+                    l10n.productStockSummary(
+                      l10n.categoryLabel(product.category),
+                      product.formattedPrice,
+                      product.stockQuantity,
+                    ),
                   ),
                   trailing: const Icon(Icons.chevron_right),
                   onTap: () => context.go('/products/${product.id}/edit'),