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/Protocol/Transport/SseClientTransportOptions.cs

@@ -48,37 +48,6 @@ public record SseClientTransportOptions
     /// </remarks>
     public TimeSpan ConnectionTimeout { get; init; } = TimeSpan.FromSeconds(30);
 
-    /// <summary>
-    /// Gets or sets the maximum number of reconnection attempts for the SSE connection before giving up.
-    /// </summary>
-    /// <remarks>
-    /// <para>
-    /// This property controls how many times the client will attempt to reconnect to the SSE server
-    /// after a connection failure occurs. If all reconnection attempts fail, a 
-    /// <see cref="McpTransportException"/> with the message "Exceeded reconnect limit" will be thrown.
-    /// </para>
-    /// <para>
-    /// Between each reconnection attempt, the client will wait for the duration specified by <see cref="ReconnectDelay"/>.
-    /// </para>
-    /// </remarks>
-    public int MaxReconnectAttempts { get; init; } = 3;
-
-    /// <summary>
-    /// Gets or sets the delay to employ between reconnection attempts when the SSE connection fails.
-    /// </summary>
-    /// <remarks>
-    /// <para>
-    /// When a connection to the SSE server is lost or fails, the client will wait for this duration
-    /// before attempting to reconnect. This helps prevent excessive reconnection attempts in quick succession
-    /// which could overload the server or network.
-    /// </para>
-    /// <para>
-    /// The reconnection process continues until either a successful connection is established or
-    /// the maximum number of reconnection attempts (<see cref="MaxReconnectAttempts"/>) is reached.
-    /// </para>
-    /// </remarks>
-    public TimeSpan ReconnectDelay { get; init; } = TimeSpan.FromSeconds(5);
-
     /// <summary>
     /// Gets custom HTTP headers to include in requests to the SSE server.
     /// </summary>