Added product categories

LiteCharms.Features.MidrandBooks/Products/Models/Product.cs

@@ -22,8 +22,6 @@ public class Product
 
     public string[]? ThumbnailUrls { get; set; }
 
-    public string[]? Categories { get; set; }
-
     public ProductMetadata? Metadata { get; set; }
 
     public ProductPrice? Price { get; set; }

LiteCharms.Features.MidrandBooks/Products/Models/ProductCategory.cs

@@ -0,0 +1,10 @@
+namespace LiteCharms.Features.MidrandBooks.Products.Models;
+
+public class ProductCategory
+{
+    public long Id { get; set; }
+
+    public long ProductId { get; set; }
+
+    public long CategoryId { get; set; }
+}