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/DiscountShopCQ/Commands/UpdateOrderStatus/UpdateOrderStatusCommand.cs

@@ -0,0 +1,18 @@
+using CMSMicroservice.Domain.Enums;
+using MediatR;
+
+namespace CMSMicroservice.Application.DiscountShopCQ.Commands.UpdateOrderStatus;
+
+public class UpdateOrderStatusCommand : IRequest<UpdateOrderStatusResponseDto>
+{
+    public long OrderId { get; set; }
+    public DeliveryStatus DeliveryStatus { get; set; }
+    public string? TrackingCode { get; set; }
+    public string? AdminNotes { get; set; }
+}
+
+public class UpdateOrderStatusResponseDto
+{
+    public bool Success { get; set; }
+    public string Message { get; set; }
+}

src/CMSMicroservice.Application/DiscountShopCQ/Commands/UpdateOrderStatus/UpdateOrderStatusCommandHandler.cs

@@ -0,0 +1,46 @@
+using CMSMicroservice.Application.Common.Interfaces;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace CMSMicroservice.Application.DiscountShopCQ.Commands.UpdateOrderStatus;
+
+public class UpdateOrderStatusCommandHandler : IRequestHandler<UpdateOrderStatusCommand, UpdateOrderStatusResponseDto>
+{
+    private readonly IApplicationDbContext _context;
+
+    public UpdateOrderStatusCommandHandler(IApplicationDbContext context)
+    {
+        _context = context;
+    }
+
+    public async Task<UpdateOrderStatusResponseDto> Handle(UpdateOrderStatusCommand request, CancellationToken cancellationToken)
+    {
+        var order = await _context.DiscountOrders
+            .FirstOrDefaultAsync(o => o.Id == request.OrderId, cancellationToken);
+
+        if (order == null)
+        {
+            return new UpdateOrderStatusResponseDto
+            {
+                Success = false,
+                Message = "سفارش یافت نشد"
+            };
+        }
+
+        // به‌روزرسانی وضعیت
+        order.DeliveryStatus = request.DeliveryStatus;
+
+        if (!string.IsNullOrEmpty(request.TrackingCode))
+        {
+            order.TrackingCode = request.TrackingCode;
+        }
+
+        await _context.SaveChangesAsync(cancellationToken);
+
+        return new UpdateOrderStatusResponseDto
+        {
+            Success = true,
+            Message = "وضعیت سفارش به‌روزرسانی شد"
+        };
+    }
+}

src/CMSMicroservice.Application/DiscountShopCQ/Commands/UpdateOrderStatus/UpdateOrderStatusCommandValidator.cs

@@ -0,0 +1,19 @@
+using FluentValidation;
+
+namespace CMSMicroservice.Application.DiscountShopCQ.Commands.UpdateOrderStatus;
+
+public class UpdateOrderStatusCommandValidator : AbstractValidator<UpdateOrderStatusCommand>
+{
+    public UpdateOrderStatusCommandValidator()
+    {
+        RuleFor(x => x.OrderId)
+            .GreaterThan(0).WithMessage("شناسه سفارش باید مثبت باشد");
+
+        RuleFor(x => x.DeliveryStatus)
+            .IsInEnum().WithMessage("وضعیت ارسال نامعتبر است");
+
+        RuleFor(x => x.TrackingCode)
+            .MaximumLength(50).WithMessage("کد رهگیری نباید بیشتر از 50 کاراکتر باشد")
+            .When(x => !string.IsNullOrEmpty(x.TrackingCode));
+    }
+}