Update test project SDK, add assessment, bump submodule

- Switched MaddoShared.Tests.csproj to Microsoft.NET.Sdk, added explicit MSTest and test SDK package references, and upgraded Microsoft.Extensions.Logging.Abstractions to 10.0.2.
- Added assessment.csv, assessment.json, and assessment.md with detailed .NET 10.0 compatibility analysis.
- Updated MaddoLibrary submodule reference (now marked as dirty).

MaddoShared.Tests/MaddoShared.Tests.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="MSTest.Sdk/4.0.1">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFramework>net10.0-windows</TargetFramework>
@@ -8,10 +8,16 @@
     <UseVSTest>true</UseVSTest>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.0" />
+    <PackageReference Include="MSTest.TestAdapter" Version="4.0.1" />
+    <PackageReference Include="MSTest.TestFramework" Version="4.0.1" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Moq" Version="4.20.2" />
     <PackageReference Include="FluentAssertions" Version="8.8.0" />
-    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="9.0.7" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.2" />
     <PackageReference Include="System.Drawing.Common" Version="9.0.7" />
   </ItemGroup>