v0.59.0

Added

• Choose which Google calendar to sync. Google Calendar sync was previously hardcoded to the primary calendar, forcing families whose shared calendar is not their primary one to restructure their Google setup. After connecting, an admin can now pick the calendar to sync from a dropdown in Settings → Synchronization. The selection defaults to primary for existing installs; switching calendars resets the incremental sync token and re-imports events from the newly selected calendar.