- Introduce `/notify/{uuid}/{file}.json` endpoint in `NotificationServer`.
- Validate UUID format and handle bad requests with appropriate error responses.
- Extend `FileDownloadService` to support downloads using UUIDs.
- Refactor common file download logic for reuse across endpoints.
Configure package relocation to avoid dependency conflicts.
Update build process to produce minimized ShadowJar artifacts and disable default jar task.
- Introduce `NotificationServer` for handling HTTP notifications.
- Register `ProxyShutdownEvent` to stop the notification server on shutdown.
- Add `FileDownloadService` for asynchronous file downloads using the configured endpoint.
- Update `Config` to include `download-endpoint`.
- Add Javalin and SLF4J dependencies for the HTTP server.