DigitalOcean App Platform Jobs Transactional Email with Rovela (2026): SCHEDULED Cron + Encrypted Env + Idempotency-Key per Window
Wire DigitalOcean App Platform Scheduled Jobs (kind: SCHEDULED, five-field cron + time_zone, min every 15 minutes) to Rovela POST /emails: Encrypt/SECRET RUN_TIME env for sending_access, a run_command that exits, and a window-scoped Idempotency-Key so redeploys do not duplicate digests.