New src/app/run_test.go exercises the execution mode + overlap policy
dispatch paths added in P3.3, reusing the fake runJob seam:
- parallel mode starts all due jobs concurrently
- sequential mode serializes due jobs one at a time
- skip overlap policy drops a re-fire while running (no Pending)
- queue overlap policy marks Pending and re-runs after the run finishes
- RunNow refuses a manual run while another job runs in sequential mode
Helpers prime NextDue to the past and tick at the wall clock so a started
job (advanced an hour out) does not spuriously re-fire.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
