update database

lib/features/cart/data/models/cart_item_model.dart

@@ -0,0 +1,79 @@
+import 'package:hive_ce/hive.dart';
+import 'package:worker/core/constants/storage_constants.dart';
+
+part 'cart_item_model.g.dart';
+
+/// Cart Item Model - Type ID: 5
+@HiveType(typeId: HiveTypeIds.cartItemModel)
+class CartItemModel extends HiveObject {
+  CartItemModel({
+    required this.cartItemId,
+    required this.cartId,
+    required this.productId,
+    required this.quantity,
+    required this.unitPrice,
+    required this.subtotal,
+    required this.addedAt,
+  });
+
+  @HiveField(0)
+  final String cartItemId;
+
+  @HiveField(1)
+  final String cartId;
+
+  @HiveField(2)
+  final String productId;
+
+  @HiveField(3)
+  final double quantity;
+
+  @HiveField(4)
+  final double unitPrice;
+
+  @HiveField(5)
+  final double subtotal;
+
+  @HiveField(6)
+  final DateTime addedAt;
+
+  factory CartItemModel.fromJson(Map<String, dynamic> json) {
+    return CartItemModel(
+      cartItemId: json['cart_item_id'] as String,
+      cartId: json['cart_id'] as String,
+      productId: json['product_id'] as String,
+      quantity: (json['quantity'] as num).toDouble(),
+      unitPrice: (json['unit_price'] as num).toDouble(),
+      subtotal: (json['subtotal'] as num).toDouble(),
+      addedAt: DateTime.parse(json['added_at'] as String),
+    );
+  }
+
+  Map<String, dynamic> toJson() => {
+    'cart_item_id': cartItemId,
+    'cart_id': cartId,
+    'product_id': productId,
+    'quantity': quantity,
+    'unit_price': unitPrice,
+    'subtotal': subtotal,
+    'added_at': addedAt.toIso8601String(),
+  };
+
+  CartItemModel copyWith({
+    String? cartItemId,
+    String? cartId,
+    String? productId,
+    double? quantity,
+    double? unitPrice,
+    double? subtotal,
+    DateTime? addedAt,
+  }) => CartItemModel(
+    cartItemId: cartItemId ?? this.cartItemId,
+    cartId: cartId ?? this.cartId,
+    productId: productId ?? this.productId,
+    quantity: quantity ?? this.quantity,
+    unitPrice: unitPrice ?? this.unitPrice,
+    subtotal: subtotal ?? this.subtotal,
+    addedAt: addedAt ?? this.addedAt,
+  );
+}