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## Summary Closes #28. - Add optional `start_time` / `end_time` (`TimeField`) on `CalendarEvent` - Expose times in Django admin list + form - Replace hardcoded calendar template times with `time_range_display` - Add migration `0013` and unit coverage for time formatting ## Test plan - [ ] `python manage.py migrate` - [ ] `python manage.py test schasite.tests.CalendarEventTests` - [ ] In admin, edit an event with start/end times and confirm calendar page shows them - [ ] Confirm events without times hide the Time rowReviewed-on: #29