feat: Implement Discount Product and Shopping Cart functionalities

- Added UpdateDiscountProductCommandValidator for validating discount product updates.
- Created GetDiscountProductByIdQuery and its handler for retrieving discount product details by ID.
- Implemented GetDiscountProductsQuery and handler for fetching a list of discount products with filtering options.
- Developed AddToCartCommand and handler for adding products to the shopping cart.
- Implemented ClearCartCommand and handler for clearing the shopping cart.
- Created RemoveFromCartCommand and handler for removing items from the cart.
- Added UpdateCartItemCountCommand and handler for updating the quantity of items in the cart.
- Developed GetUserCartQuery and handler for retrieving the user's shopping cart details.
- Implemented Product Tag functionalities including assigning tags to products, creating, updating, and deleting tags.
- Added queries for fetching all tags and products by tag.

src/BackOffice.BFF.Application/ProductsCQ/Queries/GetCategories/GetCategoriesQueryHandler.cs

@@ -1,6 +1,6 @@
 using BackOffice.BFF.Application.Common.Interfaces;
 using CMSCategory = CMSMicroservice.Protobuf.Protos.Category;
-using CMSPruductCategory = CMSMicroservice.Protobuf.Protos.PruductCategory;
+using CMSProductCategory = CMSMicroservice.Protobuf.Protos.ProductCategory;
 
 namespace BackOffice.BFF.Application.ProductsCQ.Queries.GetCategories;
 
@@ -30,9 +30,9 @@ public class GetCategoriesQueryHandler : IRequestHandler<GetCategoriesQuery, Get
         var categories = categoriesResponse.Models ?? new();
 
         // Load existing product-category relations for this product
-        var productCategoryRequest = new CMSPruductCategory.GetAllPruductCategoryByFilterRequest
+        var productCategoryRequest = new CMSProductCategory.GetAllProductCategoryByFilterRequest
         {
-            Filter = new CMSPruductCategory.GetAllPruductCategoryByFilterFilter
+            Filter = new CMSProductCategory.GetAllProductCategoryByFilterFilter
             {
                 ProductId = request.ProductId
             },
@@ -43,7 +43,7 @@ public class GetCategoriesQueryHandler : IRequestHandler<GetCategoriesQuery, Get
             }
         };
 
-        var productCategoriesResponse = await _context.ProductCategories.GetAllPruductCategoryByFilterAsync(productCategoryRequest, cancellationToken: cancellationToken);
+        var productCategoriesResponse = await _context.ProductCategories.GetAllProductCategoryByFilterAsync(productCategoryRequest, cancellationToken: cancellationToken);
         var productCategories = productCategoriesResponse.Models ?? new();
 
         var selectedIds = productCategories

src/BackOffice.BFF.Application/ProductsCQ/Queries/GetProductGallery/GetProductGalleryQueryHandler.cs

@@ -1,5 +1,5 @@
 using BackOffice.BFF.Application.Common.Interfaces;
-using CMSMicroservice.Protobuf.Protos.ProductGallerys;
+using CMSMicroservice.Protobuf.Protos.ProductGalleries;
 using CMSMicroservice.Protobuf.Protos.ProductImages;
 
 namespace BackOffice.BFF.Application.ProductsCQ.Queries.GetProductGallery;
@@ -15,12 +15,12 @@ public class GetProductGalleryQueryHandler : IRequestHandler<GetProductGalleryQu
 
     public async Task<GetProductGalleryResponseDto> Handle(GetProductGalleryQuery request, CancellationToken cancellationToken)
     {
-        var galleryRequest = new GetAllProductGallerysByFilterRequest
+        var grpcRequest = new GetAllProductGalleriesByFilterRequest
         {
-            Filter = new GetAllProductGallerysByFilterFilter()
+            Filter = new GetAllProductGalleriesByFilterFilter()
         };
 
-        var galleryResponse = await _context.ProductGallerys.GetAllProductGallerysByFilterAsync(galleryRequest, cancellationToken: cancellationToken);
+        var galleryResponse = await _context.ProductGalleries.GetAllProductGalleriesByFilterAsync(grpcRequest, cancellationToken: cancellationToken);
 
         // Filter by product id on client side because generated type may not support assigning Int64Value directly
         var filteredModels = galleryResponse?.Models?.Where(x => x.ProductId == request.ProductId).ToList();

src/BackOffice.BFF.Application/ProductsCQ/Queries/GetProductsForCategory/GetProductsForCategoryQueryHandler.cs

@@ -1,6 +1,6 @@
 using BackOffice.BFF.Application.Common.Interfaces;
 using CMSProducts = CMSMicroservice.Protobuf.Protos.Products;
-using CMSPruductCategory = CMSMicroservice.Protobuf.Protos.PruductCategory;
+using CMSProductCategory = CMSMicroservice.Protobuf.Protos.ProductCategory;
 
 namespace BackOffice.BFF.Application.ProductsCQ.Queries.GetProductsForCategory;
 
@@ -30,9 +30,9 @@ public class GetProductsForCategoryQueryHandler : IRequestHandler<GetProductsFor
         var products = productsResponse.Models ?? new();
 
         // Load links for this category
-        var linksRequest = new CMSPruductCategory.GetAllPruductCategoryByFilterRequest
+        var linksRequest = new CMSProductCategory.GetAllProductCategoryByFilterRequest
         {
-            Filter = new CMSPruductCategory.GetAllPruductCategoryByFilterFilter
+            Filter = new CMSProductCategory.GetAllProductCategoryByFilterFilter
             {
                 CategoryId = request.CategoryId
             },
@@ -43,7 +43,7 @@ public class GetProductsForCategoryQueryHandler : IRequestHandler<GetProductsFor
             }
         };
 
-        var linksResponse = await _context.ProductCategories.GetAllPruductCategoryByFilterAsync(linksRequest, cancellationToken: cancellationToken);
+        var linksResponse = await _context.ProductCategories.GetAllProductCategoryByFilterAsync(linksRequest, cancellationToken: cancellationToken);
         var links = linksResponse.Models ?? new();
 
         var selectedProductIds = links.Select(l => l.ProductId).ToHashSet();