Xubin Ren 142cb46956 fix(cron): preserve manual run state and merged history
Keep manual runs from flipping the scheduler's running flag, rebuild merged run history records from action logs, and avoid delaying sub-second jobs to a one-second floor. Add regression coverage for disabled/manual runs, merged history persistence, and sub-second timers.

Made-with: Cursor
2026-04-08 23:34:47 +08:00
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fix
2026-04-08 23:34:47 +08:00