* feat: add schedule_thread_wakeup tool for self-polling
Add a new agent tool that schedules a one-shot re-trigger of the
current thread after a configurable delay (1–1440 minutes). Uses a
LangGraph cron with end_time to fire exactly once, then retire.
Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
* fix: prevent early thread wakeups
Round scheduled wakeup times up to the next whole minute so cron minute precision cannot fire before the requested delay.
Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
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Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
