Summary:

According to the https://developer.atlassian.com/platform/app-migration/transfer-cancellation/?tabId=1&tab=forge#transfer-cancellation, the cancellation of a migration (CMA) can be requested only after the migration has been running for at least 30 minutes, but also before the migration has settled. This means that during development, after making code changes, the developer needs to wait more than 30 minutes to test the changes, regardless of how small they are, and also try to catch the window before the migration is settled. This impacts our efforts to provide a good migration experience to our clients.

Provide a way to bypass or lower the 30‑minute transfer cancellation limit for development/testing