Реализована логика сущности "Магазин"

ConfectionaryBusinessLogic/ShopLogic.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryBusinessLogic
+{
+    internal class ShopLogic
+    {
+    }
+}

ConfectioneryContracts/BusinessLogicsContracts/IShopLogic.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryContracts.BusinessLogicsContracts
+{
+    internal interface IShopLogic
+    {
+    }
+}