Fix build issue from NuGet.Frameworks conflict (#3350)

Author: ds5678

global.json

@@ -1,7 +1,8 @@
 {
   "sdk": {
     "version": "10.0.100",
-    "rollForward": "latestMinor"
+    "rollForward": "latestMinor",
+    "allowPrerelease": false
   },
   "msbuild-sdks": {
     // Template packages (Stride.Templates.*) compile no code; NoTargets produces the nupkg

sources/Directory.Packages.props

@@ -81,6 +81,7 @@
     <!-- 7.3.1 matches what .NET 10 SDK 10.0.202 ships. -->
     <PackageVersion Include="NuGet.Commands" Version="7.3.1" />
     <PackageVersion Include="NuGet.Configuration" Version="7.3.1" />
+    <PackageVersion Include="NuGet.Frameworks" Version="7.3.1" />
     <PackageVersion Include="NuGet.PackageManagement" Version="7.3.1" />
     <PackageVersion Include="NuGet.ProjectModel" Version="7.3.1" />
     <PackageVersion Include="NuGet.Protocol" Version="7.3.1" />

sources/core/Stride.Core.Tasks/Stride.Core.Tasks.csproj

@@ -20,6 +20,12 @@
     <PackageReference Include="Mono.Options" />
   </ItemGroup>
 
+  <ItemGroup>
+    <!-- MSBuild is loaded from the resolved SDK (MSBuildLocator), which brings its own NuGet.Frameworks.
+         Don't copy our (older) version to the output folder or project evaluation fails on newer SDKs. -->
+    <PackageReference Include="NuGet.Frameworks" ExcludeAssets="runtime" PrivateAssets="all" />
+  </ItemGroup>
+
   <ItemGroup>
     <Compile Include="..\..\assets\Stride.AssetCompiler\Tasks\PackAssets.cs" Link="PackAssets.cs" />
     <Compile Include="..\..\shared\SharedAssemblyInfo.cs">