Clean up extensive console logging that was added during RRULE debugging.
Removed debug logs from:
- Frontend RRULE generation in create event modal
- Frontend RRULE parsing in calendar service
- Weekly/monthly/yearly occurrence generation functions
- Backend RRULE processing in events and series handlers
The core functionality remains unchanged - this is purely a cleanup
of temporary debugging output that is no longer needed.
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Co-Authored-By: Claude <noreply@anthropic.com>
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