Retructured solution

LiteCharms.Features/Shop/CartPackages/Queries/GetPackageItemsQuery.cs

@@ -0,0 +1,18 @@
+using LiteCharms.Features.Shop.CartPackages.Models;
+
+namespace LiteCharms.Features.CartPackages.Queries;
+
+public class GetPackageItemsQuery : IRequest<Result<PackageItem[]>>
+{
+    public Guid PackageId { get; set; }
+
+    private GetPackageItemsQuery(Guid packageId) => PackageId = packageId;
+
+    public static GetPackageItemsQuery Create(Guid packageId)
+    {
+        if (packageId == Guid.Empty)
+            throw new ArgumentException("Package ID is required", nameof(packageId));
+
+        return new(packageId);
+    }
+}