إضافة منتج جديد

[
  {
    "name": "اسم المنتج",
    "category": "التصنيف",
    "sell": 25.00,
    "stock": 10,
    "description": "وصف المنتج",
    "image": "https://example.com/image.jpg",
    "oldPrice": 30.00,
    "discountPercent": 15,
    "onSale": true,
    "featured": false,
    "deliveryFee": 2,
    "videoUrl": "",
    "additionalImages": []
  }
]