Implement UoW

src/Printbase.Application/IUnitOfWork.cs

@@ -0,0 +1,15 @@
+using Printbase.Domain.Repositories;
+
+namespace Printbase.Application;
+
+public interface IUnitOfWork
+{
+    public IProductRepository ProductRepository { get; }
+    public ICategoryRepository CategoryRepository { get; }
+    public IProductVariantRepository ProductVariantRepository { get; }
+
+    Task SaveAsync();
+    Task BeginTransactionAsync();
+    Task CommitTransactionAsync();
+    Task RollbackTransactionAsync();
+}