Add McpClient/Session methods using .Protocol types (#1063)

src/ModelContextProtocol.Core/Client/HttpClientTransport.cs

@@ -41,6 +41,7 @@ public sealed class HttpClientTransport : IClientTransport, IAsyncDisposable
     /// <see langword="true"/> to dispose of <paramref name="httpClient"/> when the transport is disposed;
     /// <see langword="false"/> if the caller is retaining ownership of the <paramref name="httpClient"/>'s lifetime.
     /// </param>
+    /// <exception cref="ArgumentNullException"><paramref name="transportOptions"/> or <paramref name="httpClient"/> is <see langword="null"/>.</exception>
     public HttpClientTransport(HttpClientTransportOptions transportOptions, HttpClient httpClient, ILoggerFactory? loggerFactory = null, bool ownsHttpClient = false)
     {
         Throw.IfNull(transportOptions);