Add validators and services for Product Galleries and Product Tags

- Implemented Create, Delete, Get, and Update validators for Product Galleries.
- Added Create, Delete, Get, and Update validators for Product Tags.
- Created service classes for handling Discount Categories, Discount Orders, Discount Products, Discount Shopping Cart, Product Categories, Product Galleries, and Product Tags.
- Each service class integrates with CQRS for command and query handling.
- Established mapping profiles for Product Galleries.

src/CMSMicroservice.Domain/Entities/User.cs

@@ -14,10 +14,6 @@ public class User : BaseAuditableEntity
     public string? NationalCode { get; set; }
     //آدرس آواتار
     public string? AvatarPath { get; set; }
-    //شناسه والد
-    public long? ParentId { get; set; }
-    //User Navigation Property
-    public virtual User? Parent { get; set; }
     //کد ارجاع
     public string ReferralCode { get; set; }
     //موبایل فعال شده؟
@@ -74,13 +70,11 @@ public class User : BaseAuditableEntity
     // ============= Navigation Properties =============
     
     //UserAddress Collection Navigation Reference
-    public virtual ICollection<UserAddress> UserAddresss { get; set; }
+    public virtual ICollection<UserAddress> UserAddresses { get; set; }
     //UserRole Collection Navigation Reference
     public virtual ICollection<UserRole> UserRoles { get; set; }
     //UserCarts Collection Navigation Reference
-    public virtual ICollection<UserCarts> UserCartss { get; set; }
-    //User Collection Navigation Reference
-    public virtual ICollection<User> Users { get; set; }
+    public virtual ICollection<UserCart> UserCarts { get; set; }
     //UserContract Collection Navigation Reference
     public virtual ICollection<UserContract> UserContracts { get; set; }
     //UserOrder Collection Navigation Reference
@@ -99,4 +93,8 @@ public class User : BaseAuditableEntity
     public virtual ICollection<UserCommissionPayout>? CommissionPayouts { get; set; }
     //DayaLoanContract Collection Navigation Reference
     public virtual ICollection<DayaLoanContract>? DayaLoanContracts { get; set; }
+    //DiscountShoppingCart Collection Navigation Reference (سبد خرید فروشگاه تخفیفی)
+    public virtual ICollection<DiscountShop.DiscountShoppingCart>? DiscountShoppingCarts { get; set; }
+    //DiscountOrder Collection Navigation Reference (سفارشات فروشگاه تخفیفی)
+    public virtual ICollection<DiscountShop.DiscountOrder>? DiscountOrders { get; set; }
 }