feat: Implement User Package Status and User Order Management features

- Added GetUserPackageStatus functionality with mapping and service implementation.
- Introduced UserOrder service methods for updating order status, applying discounts, and calculating order PV.
- Created Protobuf definitions for public messages and user orders, including necessary request and response messages.
- Implemented mapping profiles for package and user order related queries and commands.
- Developed query handlers and validators for new commands and queries in the application layer.
- Established PublicMessage service for handling public messages with appropriate gRPC endpoints.

src/BackOffice.BFF.Application/DiscountCategoryCQ/Commands/CreateDiscountCategory/CreateDiscountCategoryCommandHandler.cs

@@ -25,7 +25,7 @@ public class CreateDiscountCategoryCommandHandler : IRequestHandler<CreateDiscou
         };
 
         if (request.ParentCategoryId.HasValue)
-            createRequest.ParentCategoryId = new Int64Value { Value = request.ParentCategoryId.Value };
+            createRequest.ParentCategoryId = request.ParentCategoryId.Value ;
 
         // Upload Image
         if (request.ImageFile != null && request.ImageFile.File != null && request.ImageFile.File.Length > 0)

src/BackOffice.BFF.Application/DiscountCategoryCQ/Commands/UpdateDiscountCategory/UpdateDiscountCategoryCommandHandler.cs

@@ -26,7 +26,7 @@ public class UpdateDiscountCategoryCommandHandler : IRequestHandler<UpdateDiscou
         };
 
         if (request.ParentCategoryId.HasValue)
-            updateRequest.ParentCategoryId = new Int64Value { Value = request.ParentCategoryId.Value };
+            updateRequest.ParentCategoryId =request.ParentCategoryId.Value ;
 
         // Upload new Image if provided
         if (request.ImageFile != null && request.ImageFile.File != null && request.ImageFile.File.Length > 0)

src/BackOffice.BFF.Application/DiscountCategoryCQ/Queries/GetDiscountCategories/GetDiscountCategoriesQueryHandler.cs

@@ -17,10 +17,10 @@ public class GetDiscountCategoriesQueryHandler : IRequestHandler<GetDiscountCate
         var grpcRequest = new GetDiscountCategoriesRequest();
 
         if (request.ParentCategoryId.HasValue)
-            grpcRequest.ParentCategoryId = new Int64Value { Value = request.ParentCategoryId.Value };
+            grpcRequest.ParentCategoryId =  request.ParentCategoryId.Value ;
 
         if (request.IsActive.HasValue)
-            grpcRequest.IsActive = new BoolValue { Value = request.IsActive.Value };
+            grpcRequest.IsActive = request.IsActive.Value ;
 
         var response = await _context.DiscountCategories.GetDiscountCategoriesAsync(grpcRequest, cancellationToken: cancellationToken);
 
@@ -37,9 +37,9 @@ public class GetDiscountCategoriesQueryHandler : IRequestHandler<GetDiscountCate
             Id = node.Id,
             Name = node.Name,
             Title = node.Title,
-            Description = node.HasDescription ? node.Description.Value : string.Empty,
-            ImagePath = node.HasImagePath ? node.ImagePath.Value : string.Empty,
-            ParentCategoryId = node.HasParentCategoryId ? node.ParentCategoryId.Value : null,
+            Description = string.IsNullOrWhiteSpace(node.Description) ? node.Description : string.Empty,
+            ImagePath =string.IsNullOrWhiteSpace(node.ImagePath)? node.ImagePath : string.Empty,
+            ParentCategoryId = node.ParentCategoryId!=null? node.ParentCategoryId.Value : null,
             SortOrder = node.SortOrder,
             IsActive = node.IsActive,
             ProductCount = node.ProductCount,