feat: add HomeController for state management

lib/src/controllers/home_controller.dart

@@ -0,0 +1,99 @@
+import 'package:get/get.dart';
+import 'package:mom_kitchen/src/controllers/base/base_controller.dart';
+
+class ProductModel {
+  final String name;
+  final double price;
+  final String image;
+  final String category;
+
+  ProductModel({
+    required this.name,
+    required this.price,
+    required this.image,
+    required this.category,
+  });
+
+  factory ProductModel.fromMap(Map<String, dynamic> map) {
+    return ProductModel(
+      name: map['name'] ?? '',
+      price: (map['price'] as num?)?.toDouble() ?? 0.0,
+      image: map['image'] ?? '📦',
+      category: map['category'] ?? '',
+    );
+  }
+
+  Map<String, dynamic> toMap() {
+    return {
+      'name': name,
+      'price': price,
+      'image': image,
+      'category': category,
+    };
+  }
+}
+
+class HomeController extends BaseController {
+  final products = <ProductModel>[].obs;
+  final categories = <String>[].obs;
+  final selectedCategory = ''.obs;
+  final searchQuery = ''.obs;
+
+  @override
+  void onInit() {
+    super.onInit();
+    loadProducts();
+  }
+
+  Future<void> loadProducts() async {
+    await runWithLoading(() async {
+      await Future.delayed(const Duration(milliseconds: 500));
+      
+      final mockProducts = [
+        ProductModel(name: 'Organic Apples', price: 4.99, image: '🍎', category: 'Fruits'),
+        ProductModel(name: 'Fresh Milk', price: 3.49, image: '🥛', category: 'Dairy'),
+        ProductModel(name: 'Whole Wheat Bread', price: 2.99, image: '🍞', category: 'Bakery'),
+        ProductModel(name: 'Free Range Eggs', price: 5.99, image: '🥚', category: 'Dairy'),
+        ProductModel(name: 'Organic Tomatoes', price: 3.99, image: '🍅', category: 'Vegetables'),
+        ProductModel(name: 'Fresh Salmon', price: 12.99, image: '🐟', category: 'Seafood'),
+      ];
+      
+      products.value = mockProducts;
+      
+      final categorySet = <String>{};
+      for (var product in mockProducts) {
+        categorySet.add(product.category);
+      }
+      categories.value = categorySet.toList();
+    });
+  }
+
+  List<ProductModel> get filteredProducts {
+    var result = products.toList();
+    
+    if (selectedCategory.value.isNotEmpty) {
+      result = result.where((p) => p.category == selectedCategory.value).toList();
+    }
+    
+    if (searchQuery.value.isNotEmpty) {
+      result = result.where((p) => 
+        p.name.toLowerCase().contains(searchQuery.value.toLowerCase())
+      ).toList();
+    }
+    
+    return result;
+  }
+
+  void selectCategory(String category) {
+    selectedCategory.value = category;
+  }
+
+  void search(String query) {
+    searchQuery.value = query;
+  }
+
+  void clearFilters() {
+    selectedCategory.value = '';
+    searchQuery.value = '';
+  }
+}