Add StreamableHttpHandler and WithHttpTransport (#291)

* Simplify ModelContextProtocol.AspNetCore README

* Add StreamableHttpHandler

* Use "docker info" in CheckIsDockerAvailable

* Call WithHttpTransport in samples, tests and README

* Cleanup test namespaces

* Add CanConnect_WithMcpClient_AfterCustomizingRoute test

* Simplify relative URI handling

* Handle request made directly to the MapMcp route pattern

* Add Messages_FromNewUser_AreRejected test

* Fix README

* Shorten UserIdClaim ValueTuple names

* Remove MaxReconnectAttempts and ReconnectDelay from SseClientTransportOptions

- Add proper AdditionalHeaders support

src/ModelContextProtocol.AspNetCore/README.md

@@ -34,16 +34,14 @@ using ModelContextProtocol.Server;
 using System.ComponentModel;
 
 var builder = WebApplication.CreateBuilder(args);
-builder.WebHost.ConfigureKestrel(options =>
-{
-    options.ListenLocalhost(3001);
-});
-builder.Services.AddMcpServer().WithToolsFromAssembly();
+builder.Services.AddMcpServer()
+    .WithHttpTransport()
+    .WithToolsFromAssembly();
 var app = builder.Build();
 
 app.MapMcp();
 
-app.Run();
+app.Run("http://localhost:3001");
 
 [McpServerToolType]
 public static class EchoTool