FIX 1 - Calendar Day Offset (already fixed in previous commit):
- Corrected DatePicker component to calculate proper day offset
- Added padding cells for correct weekday alignment
- January 1, 2026 now correctly shows as Thursday instead of Monday
FIX 2 - Business Hours Only Showing 22:00-23:00:
PROBLEM:
- Time slots API only returned 22:00 and 23:00 as available hours
- Incorrect business hours in database (likely 22:00-23:00 instead of 10:00-19:00)
- Poor timezone conversion in get_detailed_availability function
ROOT CAUSES:
1. Location business_hours stored incorrect hours (22:00-23:00)
2. get_detailed_availability had timezone concatenation issues
- Used string concatenation for timestamp construction
- Didn't properly handle timezone conversion
3. Fallback to defaults was using wrong values
SOLUTIONS:
1. Migration 20260118080000_fix_business_hours_default.sql:
- Update default business hours to normal salon hours
- Mon-Fri: 10:00-19:00
- Saturday: 10:00-18:00
- Sunday: Closed
2. Migration 20260118090000_fix_get_detailed_availability_timezone.sql:
- Rewrite get_detailed_availability function
- Use make_timestamp() instead of string concatenation
- Proper timezone handling with AT TIME ZONE
- Better NULL handling for business_hours
- Fix is_available_for_booking COALESCE to default true
CHANGES:
- components/booking/date-picker.tsx: Added day offset calculation
- supabase/migrations/20260118080000.sql: Fix default business hours
- supabase/migrations/20260118090000.sql: Fix timezone in availability function
