Minimal SignalR test hub and endpoint for isolated testing

Refactored Mango.Sandbox.EndPoints to enable minimal, dependency-light SignalR endpoint testing. Introduced DevAdminSignalRHubSandbox and TestSignalREndpoint for protocol/contract tests without full NopCommerce/FruitBank infra. Added SignalRClientSandbox and comprehensive MSTest coverage for all parameter types. Simplified Program.cs startup, updated project references, and added minimal logger. Original SignalREndpointTests replaced with focused, low-level and high-level tests. CORS and DTOs updated for compatibility.

Mango.Nop.Core/Dtos/ModelDtoBase.cs

@@ -1,4 +1,5 @@
-using Nop.Core;
+using AyCode.Core.Interfaces;
+using Nop.Core;
 
 namespace Mango.Nop.Core.Dtos;
 

Mango.Nop.Core/Entities/MgStockTaking.cs

@@ -0,0 +1,29 @@
+using System.ComponentModel.Design;
+using AyCode.Interfaces.Entities;
+using AyCode.Interfaces.TimeStampInfo;
+using LinqToDB.Mapping;
+
+namespace Mango.Nop.Core.Entities;
+
+public interface IMgStockTaking : IEntityInt, ITimeStampInfo
+{
+    public DateTime StartDateTime { get; set; }
+    public bool IsClosed { get; set; }
+
+    public bool IsReadyForClose();
+}
+
+public abstract class MgStockTaking<TStockTakingItem> : MgEntityBase, IMgStockTaking where TStockTakingItem : class, IMgStockTakingItem
+{
+    public DateTime StartDateTime { get; set; }
+    public bool IsClosed { get; set; }
+
+    public abstract bool IsReadyForClose();
+
+    [Association(ThisKey = nameof(Id), OtherKey = nameof(IMgStockTakingItem.StockTakingId), CanBeNull = true)]
+    public List<TStockTakingItem>? StockTakingItems { get; set; }
+
+    public int Creator { get; set; }
+    public DateTime Created { get; set; }
+    public DateTime Modified { get; set; }
+}

Mango.Nop.Core/Entities/MgStockTakingItem.cs

@@ -0,0 +1,41 @@
+using AyCode.Interfaces.Entities;
+using AyCode.Interfaces.TimeStampInfo;
+using LinqToDB;
+using LinqToDB.Mapping;
+using Mango.Nop.Core.Dtos;
+using Mango.Nop.Core.Interfaces;
+
+namespace Mango.Nop.Core.Entities;
+
+public interface IMgStockTakingItem : IEntityInt, ITimeStampInfo
+{
+    public int StockTakingId { get; set; }
+    public int ProductId { get; set; }
+
+    public bool IsMeasured { get; set; }
+
+    public int OriginalStockQuantity { get; set; }
+    public int MeasuredStockQuantity { get; set; }
+}
+
+public abstract class MgStockTakingItem<TStockTaking, TProduct> : MgEntityBase, IMgStockTakingItem 
+    where TStockTaking : class, IMgStockTaking where TProduct : class, IMgProductDto
+{
+    public int StockTakingId { get; set; }
+    public int ProductId { get; set; }
+
+    public bool IsMeasured { get; set; }
+
+    public int OriginalStockQuantity { get; set; }
+    public int MeasuredStockQuantity { get; set; }
+
+    [Association(ThisKey = nameof(StockTakingId), OtherKey = nameof(IMgStockTaking.Id), CanBeNull = true)]
+    public TStockTaking? StockTaking{ get; set; }
+
+    [Association(ThisKey = nameof(ProductId), OtherKey = nameof(IMgProductDto.Id), CanBeNull = true)]
+    public TProduct? Product { get; set; }
+
+    public DateTime Created { get; set; }
+    public DateTime Modified { get; set; }
+
+}

Mango.Nop.Core/Mango.Nop.Core.csproj

@@ -13,7 +13,7 @@
 	<ItemGroup>
 		<PackageReference Include="linq2db" Version="5.4.1" />
 		<PackageReference Include="MessagePack" Version="3.1.4" />
-		<PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="9.0.10" />
+		<PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="9.0.11" />
 	</ItemGroup>
 
 	<ItemGroup>

Mango.Nop.Core/Models/MgLoginModelRequest.cs

@@ -3,8 +3,15 @@ using Mango.Nop.Core.Interfaces;
 
 namespace Mango.Nop.Core.Models;
 
-public class MgLoginModelRequest(string email, string password) : IAcModelDtoBaseEmpty
+public class MgLoginModelRequest : IAcModelDtoBaseEmpty
 {
-    public string Email { get; set; } = email;
+    public MgLoginModelRequest(){}
-    public string Password { get; set; } = password;
+    public MgLoginModelRequest(string email, string password)
+    {
+        Email = email;
+        Password = password;
+    }
+
+    public string Email { get; set; }
+    public string Password { get; set; }
 }

Mango.Nop.Data/Mango.Nop.Data.csproj

@@ -12,7 +12,7 @@
 
 	<ItemGroup>
 		<PackageReference Include="MessagePack" Version="3.1.4" />
-		<PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="9.0.10" />
+		<PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="9.0.11" />
 	</ItemGroup>
 
 	<ItemGroup>

Mango.Nop.Services/Mango.Nop.Services.csproj

@@ -11,7 +11,7 @@
 
 	<ItemGroup>
 		<PackageReference Include="MessagePack" Version="3.1.4" />
-		<PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="9.0.10" />
+		<PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="9.0.11" />
 	</ItemGroup>
 
 	<ItemGroup>