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.Application/ClubMembershipCQ/Commands/ActivateClubMembership/ActivateClubMembershipCommandHandler.cs

@@ -130,6 +130,30 @@ public class ActivateClubMembershipCommandHandler : IRequestHandler<ActivateClub
             var existingMembership = await _context.ClubMemberships
                 .FirstOrDefaultAsync(c => c.UserId == user.Id, cancellationToken);
 
+            // 6.1. دریافت مبلغ هدیه از تنظیمات
+            var giftValueConfig = await _context.SystemConfigurations
+                .FirstOrDefaultAsync(
+                    c => c.Key == "Club.MembershipGiftValue" && c.IsActive,
+                    cancellationToken
+                );
+            
+            long giftValue = 25_200_000; // مقدار پیش‌فرض
+            if (giftValueConfig != null && long.TryParse(giftValueConfig.Value, out var configValue))
+            {
+                giftValue = configValue;
+                _logger.LogInformation(
+                    "Using Club.MembershipGiftValue from configuration: {GiftValue}",
+                    giftValue
+                );
+            }
+            else
+            {
+                _logger.LogWarning(
+                    "Club.MembershipGiftValue not found in configuration, using default: {GiftValue}",
+                    giftValue
+                );
+            }
+
             ClubMembership entity;
             bool isNewMembership = existingMembership == null;
             var activationDate = DateTime.UtcNow;
@@ -143,6 +167,7 @@ public class ActivateClubMembershipCommandHandler : IRequestHandler<ActivateClub
                     IsActive = true,
                     ActivatedAt = activationDate,
                     InitialContribution = 56_000_000,
+                    GiftValue = giftValue, // مقدار از تنظیمات
                     TotalEarned = 0,
                     PurchaseMethod = user.PackagePurchaseMethod
                 };
@@ -150,9 +175,10 @@ public class ActivateClubMembershipCommandHandler : IRequestHandler<ActivateClub
                 _context.ClubMemberships.Add(entity);
                 
                 _logger.LogInformation(
-                    "Created new club membership for UserId {UserId} via {Method}",
+                    "Created new club membership for UserId {UserId} via {Method}, GiftValue: {GiftValue}",
                     user.Id,
-                    user.PackagePurchaseMethod
+                    user.PackagePurchaseMethod,
+                    giftValue
                 );
             }
             else