rexlunae 41a39085d3 fix(cron): stagger missed jobs on restart to prevent gateway overload
When the gateway restarts with many overdue cron jobs, they are now
executed with staggered delays to prevent overwhelming the gateway.

- Add missedJobStaggerMs config (default 5s between jobs)
- Add maxMissedJobsPerRestart limit (default 5 jobs immediately)
- Prioritize most overdue jobs by sorting by nextRunAtMs
- Reschedule deferred jobs to fire gradually via normal timer

Fixes #18892
2026-03-09 10:58:04 -07:00
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