chore: initial commit Dutra Store POS app

lib/models/product.dart

@@ -0,0 +1,51 @@
+class Product {
+  final String id;
+  final String name;
+  final String barcode;
+  final double price;
+  final double priceReseller;
+  final int stock;
+  final int minStock;
+  final double hargaPokok;
+
+  Product({
+    required this.id,
+    required this.name,
+    this.barcode = '',
+    required this.price,
+    this.priceReseller = 0,
+    required this.stock,
+    this.minStock = 5,
+    this.hargaPokok = 0,
+  });
+
+  factory Product.fromJson(Map<String, dynamic> json) {
+    return Product(
+      id: json['id'] as String,
+      name: json['name'] as String,
+      barcode: json['barcode'] != null ? json['barcode'] as String : '',
+      price: (json['price'] as num).toDouble(),
+      priceReseller: json['price_reseller'] != null
+          ? (json['price_reseller'] as num).toDouble()
+          : 0,
+      stock: json['stock'] as int,
+      minStock: json['min_stock'] != null
+          ? (json['min_stock'] as int)
+          : 5,
+      hargaPokok: json['harga_pokok'] != null
+          ? (json['harga_pokok'] as num).toDouble()
+          : 0,
+    );
+  }
+
+  Map<String, dynamic> toJson() => {
+        'id': id,
+        'name': name,
+        'barcode': barcode,
+        'price': price,
+        'price_reseller': priceReseller,
+        'stock': stock,
+        'min_stock': minStock,
+        'harga_pokok': hargaPokok,
+      };
+}