feat: Add ClearCart command and response, implement CancelOrder command with validation, and enhance DeliveryStatus and User models

src/CMSMicroservice.Application/UserOrderCQ/Commands/CancelOrder/CancelOrderResponseDto.cs

@@ -0,0 +1,11 @@
+using CMSMicroservice.Domain.Enums;
+
+namespace CMSMicroservice.Application.UserOrderCQ.Commands.CancelOrder;
+
+public class CancelOrderResponseDto
+{
+    public long OrderId { get; set; }
+    public DeliveryStatus Status { get; set; }
+    public string Message { get; set; }
+    public bool RefundProcessed { get; set; }
+}