Cloudflare Workers Cron Triggers Transactional Email with Rovela (2026): triggers.crons + scheduled() + Idempotency-Key per Window
Wire Cloudflare Workers Cron Triggers (UTC five-field cron in wrangler triggers.crons + scheduled()) to Rovela POST /emails. Store ROVELA_API_KEY with wrangler secret, aggregate live digests, and send with a window-scoped Idempotency-Key from controller.scheduledTime. Distinct from HTTP Workers email and Azure/GCP/AWS/Netlify/Fly/Render/Railway/Vercel cron.