feat: implement customer registration flow and business hours system

Major changes:
- Add customer registration with email/phone lookup (app/booking/registro)
- Add customers API endpoint (app/api/customers/route)
- Implement business hours for locations (mon-fri 10-7, sat 10-6, sun closed)
- Fix availability function type casting issues
- Add business hours utilities (lib/utils/business-hours.ts)
- Update Location type to include business_hours JSONB
- Add mock payment component for testing
- Remove Supabase auth from booking flow
- Fix /cita redirect path in booking flow

Database migrations:
- Add category column to services table
- Add business_hours JSONB column to locations table
- Fix availability functions with proper type casting
- Update get_detailed_availability to use business_hours

Features:
- Customer lookup by email or phone
- Auto-redirect to registration if customer not found
- Pre-fill customer data if exists
- Business hours per day of week
- Location-specific opening/closing times

scripts/seed_booking_data.sql

@@ -0,0 +1,81 @@
+-- Seed data for testing booking flow
+-- Execute in Supabase Dashboard: Database > SQL Editor
+
+-- Get active locations
+DO $$
+DECLARE
+    v_location_id UUID;
+    v_staff_id UUID;
+    v_resource_id UUID;
+    v_service_id UUID;
+BEGIN
+    -- Get first active location
+    SELECT id INTO v_location_id FROM locations WHERE is_active = true LIMIT 1;
+    
+    IF v_location_id IS NULL THEN
+        RAISE NOTICE 'No active locations found';
+        RETURN;
+    END IF;
+    
+    RAISE NOTICE 'Using location: %', v_location_id;
+    
+    -- Insert sample staff if none exists
+    INSERT INTO staff (user_id, location_id, role, display_name, phone, is_active, is_available_for_booking, work_hours_start, work_hours_end, work_days)
+    SELECT 
+        gen_random_uuid(),
+        v_location_id,
+        'artist',
+        'Artista Demo',
+        '+52 844 123 4567',
+        true,
+        true,
+        '10:00'::TIME,
+        '19:00'::TIME,
+        'MON,TUE,WED,THU,FRI,SAT'
+    WHERE NOT EXISTS (SELECT 1 FROM staff WHERE display_name = 'Artista Demo' AND location_id = v_location_id)
+    RETURNING id INTO v_staff_id;
+    
+    IF v_staff_id IS NOT NULL THEN
+        RAISE NOTICE 'Created staff: %', v_staff_id;
+    ELSE
+        SELECT id INTO v_staff_id FROM staff WHERE display_name = 'Artista Demo' AND location_id = v_location_id;
+        RAISE NOTICE 'Using existing staff: %', v_staff_id;
+    END IF;
+    
+    -- Insert sample resources if none exists
+    INSERT INTO resources (location_id, name, type, capacity, is_active)
+    SELECT 
+        v_location_id,
+        'Estación Demo',
+        'station',
+        1,
+        true
+    WHERE NOT EXISTS (SELECT 1 FROM resources WHERE name = 'Estación Demo' AND location_id = v_location_id)
+    RETURNING id INTO v_resource_id;
+    
+    IF v_resource_id IS NOT NULL THEN
+        RAISE NOTICE 'Created resource: %', v_resource_id;
+    ELSE
+        SELECT id INTO v_resource_id FROM resources WHERE name = 'Estación Demo' AND location_id = v_location_id;
+        RAISE NOTICE 'Using existing resource: %', v_resource_id;
+    END IF;
+    
+    -- Check if we have services
+    SELECT id INTO v_service_id FROM services WHERE is_active = true LIMIT 1;
+    
+    IF v_service_id IS NOT NULL THEN
+        RAISE NOTICE 'Using service: %', v_service_id;
+    END IF;
+    
+    RAISE NOTICE 'Seed data completed';
+END $$;
+
+-- Verify results
+SELECT 
+    'Locations' as type, COUNT(*)::text as count FROM locations WHERE is_active = true
+UNION ALL
+SELECT 'Staff', COUNT(*)::text FROM staff WHERE is_active = true
+UNION ALL
+SELECT 'Resources', COUNT(*)::text FROM resources WHERE is_active = true
+UNION ALL
+SELECT 'Services', COUNT(*)::text FROM services WHERE is_active = true;