Changes to POST /experimental/workspaces/:workspaceId/mcp-servers

removed the success response with the status 201

added the non-success response with the status 410

response property data/attributes/gatewayPath list-of-types was widened by adding types null to media type application/json of response 201

added the optional property error/code to the response with the 403 status

added the optional property error/url to the response with the 403 status