Implement a scheduler system for BladW announcements that supports both:
- Interval-based scheduling (e.g., "30m", "90s", "2h", "1d")
- Cron-based scheduling with standard 5-field format (minute hour day month weekday)
The scheduler parses configuration from BladW.Announcement.Schedules and manages timers automatically, cleaning up old timers on reload. Cron expressions are validated and compiled into matcher functions for efficient execution checking every 20 seconds.
nocode
8695419876
