- Change 'Start Date' label to 'Date' when only single date field is visible in normal mode
- Fix all-day slot display: show correct start/end dates for single click and multi-day drag
- Update API save logic: add +1 day to end date for all-day events (API requirement)
- Migrate from moment to dayjs for date handling with AdapterDayjs
- Remove manual date clamping logic - MUI/dayjs handles invalid dates automatically
- Add validation guard to prevent invalid dates from clearing field values
- Update test case to match new all-day event API behavior
lenhanphung
c1f37e3ebd