add category name at product response

internal/mappers/product_mapper.go

@@ -4,6 +4,8 @@ import (
 	"apskel-pos-be/internal/constants"
 	"apskel-pos-be/internal/entities"
 	"apskel-pos-be/internal/models"
+
+	"github.com/google/uuid"
 )
 
 func ProductEntityToModel(entity *entities.Product) *models.Product {
@@ -118,10 +120,17 @@ func ProductEntityToResponse(entity *entities.Product) *models.ProductResponse {
 		}
 	}
 
+	// Get category name from the Category relation
+	categoryName := ""
+	if entity.Category.ID != uuid.Nil {
+		categoryName = entity.Category.Name
+	}
+
 	return &models.ProductResponse{
 		ID:             entity.ID,
 		OrganizationID: entity.OrganizationID,
 		CategoryID:     entity.CategoryID,
+		CategoryName:   categoryName,
 		SKU:            entity.SKU,
 		Name:           entity.Name,
 		Description:    entity.Description,