Add audio notification sound when Codex task completes (VS Code Extension + Codex Desktop)

What variant of Codex are you using?

App, IDE Extension

What feature would you like to see?

I would like to add an audio alert sound when Codex finishes its tasks. I usually do other work while waiting for tasks to complete. Without a sound notification, I can't notice immediately when Codex is done. A completion chime will help me get timely reminders and avoid missing finished tasks.

Additional information

_No response_