feat: enhance pantry and recipes screens with logging and error handling improvements

Co-authored-by: Copilot <copilot@github.com>

flutter/lib/features/pantry/data/pantry_repository.dart

@@ -1,39 +1,66 @@
+import 'package:logging/logging.dart';
 import '../../../core/api/api_client.dart';
 import '../../../core/api/api_paths.dart';
 import '../domain/pantry_item.dart';
 import '../domain/pantry_product.dart';
 
+final _logger = Logger('PantryRepository');
+
 class PantryRepository {
   final ApiClient _api;
 
   const PantryRepository(this._api);
 
   Future<List<PantryItem>> fetchPantry({String? token}) async {
-    final data = await _api.getJson(PantryApiPaths.list, token: token);
-    final list = data as List<dynamic>;
-    return list
-        .map((e) => PantryItem.fromJson(e as Map<String, dynamic>))
-        .toList();
+    try {
+      final data = await _api.getJson(PantryApiPaths.list, token: token);
+      final list = data as List<dynamic>;
+      _logger.info('Fetched ${list.length} pantry items');
+      return list
+          .map((e) => PantryItem.fromJson(e as Map<String, dynamic>))
+          .toList();
+    } catch (error) {
+      _logger.severe('Failed to fetch pantry items: $error');
+      rethrow;
+    }
   }
 
   Future<List<PantryProduct>> fetchProducts({String? token}) async {
-    final data = await _api.getJson(ProductApiPaths.list, token: token);
-    final list = data as List<dynamic>;
-    return list
-        .map((e) => PantryProduct.fromJson(e as Map<String, dynamic>))
-        .toList();
+    try {
+      final data = await _api.getJson(ProductApiPaths.list, token: token);
+      final list = data as List<dynamic>;
+      _logger.info('Fetched ${list.length} products');
+      return list
+          .map((e) => PantryProduct.fromJson(e as Map<String, dynamic>))
+          .toList();
+    } catch (error) {
+      _logger.severe('Failed to fetch products: $error');
+      rethrow;
+    }
   }
 
   Future<PantryItem> createPantryItem(int productId, {String? token}) async {
-    final data = await _api.postJson(
-      PantryApiPaths.list,
-      body: {'productId': productId},
-      token: token,
-    );
-    return PantryItem.fromJson(data as Map<String, dynamic>);
+    try {
+      final data = await _api.postJson(
+        PantryApiPaths.list,
+        body: {'productId': productId},
+        token: token,
+      );
+      _logger.info('Created pantry item for product ID: $productId');
+      return PantryItem.fromJson(data as Map<String, dynamic>);
+    } catch (error) {
+      _logger.severe('Failed to create pantry item: $error');
+      rethrow;
+    }
   }
 
   Future<void> deletePantryItem(int id, {String? token}) async {
-    await _api.deleteJson(PantryApiPaths.remove(id), token: token);
+    try {
+      await _api.deleteJson(PantryApiPaths.remove(id), token: token);
+      _logger.info('Deleted pantry item with ID: $id');
+    } catch (error) {
+      _logger.severe('Failed to delete pantry item: $error');
+      rethrow;
+    }
   }
 }