The America/Phoenix TZ fix earlier only passed timezone= to
BackgroundScheduler's constructor. That wasn't enough: APScheduler's
CronTrigger independently calls tzlocal's get_localzone() in its own
__init__ when not given an explicit timezone, regardless of what the
scheduler itself is configured with. This never surfaced in testing
because schedules.json was always empty — the rebuild_jobs() loop that
constructs CronTrigger never executed. It crashed for real once a real
schedule existed (confirmed live: the already-configured "Pokemon
Singles >10" 4x/day schedule crash-looped the container on every boot).
Fixed by passing the same resolved timezone to every CronTrigger call.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01H6TgffxTvYhqxykAbVQg2v
Drives massprice.tcgplayer.com's Run Rule action per-rule on a
user-configured schedule (multiple times/day, day-of-week toggles),
replacing MassPrice's native scheduler (capped at 15 schedules
account-wide, one run/day, with observed clock drift). Deployed via
Forgejo push-to-deploy on Unraid, matching arr-summary/card-grader.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01H6TgffxTvYhqxykAbVQg2v
