- Refactor ~47 test cases across 7 test files to use getByRole
- Improve accessibility testing coverage following Testing Library best practices
- Make tests more robust against text changes (i18n, copy updates)
- Test elements as users (especially screen readers) interact with them
- Fix formatLocalDateTime import in EventDisplay.tsx (now in EventFormFields)
- Update test expectations: 'Edit Event' -> 'Update Event'
- Remove getEventAsync spy (no longer called before modal opens)