Issue Description The current Xcode Cloud webhook functionality requires developers to expose a public URL to receive webhook events, which poses a challenge in environments with security restrictions or limited network accessibility. Many developers need to receive webhook events locally without exposing their servers to the public internet. Proposed Solution A feature similar to Slack’s "Socket Mode" would allow developers to receive webhook events over a WebSocket connection without exposing a public URL. This socket-based solution could offer a more secure, streamlined, and accessible way for developers to work with webhooks, especially in closed network environments.