Comment out [triggers].crons in wrangler.toml — migrated this routine to
cron-job.org (free, verified) to keep the CF cron-trigger free-tier quota
available for other workers. Worker code, secrets, and observability
config stay intact so re-enabling is one toml uncomment + redeploy.
README restructured: lead with cron-job.org setup (signup → headers → JSON
body), demote CF Worker setup to a secondary path under "Using Cloudflare
Workers" for users who specifically want CF infra.