Turn on the AOT analyzer. (#92)

* Turn on the AOT analyzer.

* Address feedback

* Add missing types.

* Fix build and react to conflicts.

* Fix failing test.

* Address feedback.

tests/mcpdotnet.Tests/SseServerIntegrationTestFixture.cs

@@ -3,6 +3,7 @@ using McpDotNet.Configuration;
 using McpDotNet.Protocol.Transport;
 using Microsoft.Extensions.Logging;
 using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
 
 namespace McpDotNet.Tests;
 
@@ -37,6 +38,7 @@ public class SseServerIntegrationTestFixture : IDisposable
         Start();
     }
 
+    [MemberNotNull(nameof(_process))]
     public void Start()
     {
         // Start the server (which is at TestSseServer.exe on windows and "dotnet TestSseServer.dll" on linux)