LC5 надо было сразу использовать этот костыль лёг бы спать на 5 часов раньше

AutomobilePlant/AutomobilePlantContracts/ViewModels/ShopViewModel.cs

@@ -25,5 +25,7 @@ namespace AutomobilePlantContracts.ViewModels
         public DateTime OpeningDate { get; set; }
 
         public Dictionary<int, (ICarModel, int)> ShopCars { get; set; } = new();
+
+        public List<Tuple<string, int>>? CarAndCount {  get; set; } = new(); 
     }
 }

AutomobilePlant/AutomobilePlantRestApi/Controllers/ShopController.cs

@@ -25,7 +25,10 @@ namespace AutomobilePlantRestApi.Controllers
         {
             try
             {
-                return _shop.ReadList(null);
+				List<ShopViewModel> shops = _shop.ReadList(null);
+                for (int i = 0; i < shops.Count; i++)
+                    shops[i].CarAndCount = shops[i].ShopCars.Values.ToList().Select( x => (x.Item1.CarName, x.Item2).ToTuple() ).ToList();
+                return shops;
             }
             catch (Exception ex)
             {

AutomobilePlant/AutomobilePlantShopApp/Views/Home/Update.cshtml

@@ -65,7 +65,7 @@
 			 $("#openingDate").val(new Date(selectedShop.openingDate).toISOString().substring(0, 16));
 			 $("#address").val(selectedShop.address);
 			 $("#maxCountCars").val(selectedShop.maxCountCars);
-			 fillTable(selectedShop.shopCars);
+			 fillTable(selectedShop.carAndCount);
 		 }
 	 }
 
@@ -73,6 +73,6 @@
 		 $("#carTable").empty();
 
 		 for (var car in shopCars)
-			 $("#carTable").append('<tr><td>' + car.Value.Item1.CarName + '</td><td>' + car.Value.Item2 + '</td></tr>');
+			 $("#carTable").append('<tr><td>' + shopCars[car].item1 + '</td><td>' + shopCars[car].item2 + '</td></tr>');
 	 }
 </script>

AutomobilePlant/AutomobilePlantShopApp/Views/Home/_Layout.cshtml

@@ -40,7 +40,7 @@
 
     <footer class="border-top footer text-muted">
         <div class="container">
-            &copy; 2023 - AutomobilePlantShopApp - <a asp-area="" asp-controller="Home" asp-action="Privacy">Privacy</a>
+            &copy; 2024 - AutomobilePlantShopApp - <a asp-area="" asp-controller="Home" asp-action="Privacy">Privacy</a>
         </div>
     </footer>
     <script src="~/lib/jquery/dist/jquery.min.js"></script>