Changes to Streamable HTTP JSON-RPC endpoint for remote MCP clients.

the request property id became not nullable

removed the enum value initialize of the request property method

removed the enum value tools/call of the request property method

removed the enum value tools/list of the request property method

added McpJsonRpcResponse ErrorEnvelope to the response body oneOf list for the response status 400

the response's body type changed from object to no type for status 400

the response property id/oneOf[subschema #1] became nullable for the status 200

removed the required property error from the response with the 400 status

the header request parameter MCP-Protocol-Version became optional

the request property id/oneOf[subschema #1] became nullable

added the success response with the status 202