creation validation
- Add unconfirmed requests count display next to "Requests" on homepage
- Fix time slot creation success message: prevent false success notification when no services exist
- Add pre-validation in schedule creation to check for existing services before allowing time slot creation
- Prevent calendar days from turning green when time slot creation fails due to missing services
(fix) - Show a message prompting the user to select a personnel before displaying the schedule calendar
(fix) - Improve gift card design carousel navigation to make additional designs clearly visible
