Move AllowUnsafeBlocks to specific project csproj files

Co-authored-by: eiriktsarpalis <[email protected]>

Author: Copilot

src/Directory.Build.props

@@ -17,7 +17,6 @@
     <EmbedUntrackedSources>true</EmbedUntrackedSources>
     <AssemblyOriginatorKeyFile>$(RepoRoot)\Open.snk</AssemblyOriginatorKeyFile>
     <SignAssembly>true</SignAssembly>
-    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
 
   <ItemGroup>

src/ModelContextProtocol.AspNetCore/ModelContextProtocol.AspNetCore.csproj

@@ -10,6 +10,8 @@
     <Description>ASP.NET Core extensions for the C# Model Context Protocol (MCP) SDK.</Description>
     <PackageReadmeFile>README.md</PackageReadmeFile>
     <IsAotCompatible>true</IsAotCompatible>
+    <!-- Required by GuidHelpers.cs -->
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
 
   <ItemGroup>

src/ModelContextProtocol.Core/ModelContextProtocol.Core.csproj

@@ -9,6 +9,8 @@
     <PackageReadmeFile>README.md</PackageReadmeFile>
     <!-- Suppress the experimental tasks warning -->
     <NoWarn>$(NoWarn);MCPEXP001</NoWarn>
+    <!-- Required by GuidHelpers.cs -->
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(TargetFramework)' != 'netstandard2.0'">

src/ModelContextProtocol/ModelContextProtocol.csproj

@@ -9,6 +9,8 @@
     <PackageReadmeFile>README.md</PackageReadmeFile>
     <!-- Suppress the experimental tasks warning -->
     <NoWarn>$(NoWarn);MCPEXP001</NoWarn>
+    <!-- Required by GuidHelpers.cs -->
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(TargetFramework)' != 'netstandard2.0'">