✅ Store.tsx - Complete API Integration:
- Replaced mock data with real API calls
- useQuery for fetching settings, countries, timezones, currencies
- useMutation for saving settings
- Optimistic updates and error handling
✅ Real Data Sources:
- Countries: 200+ countries from WooCommerce (WC_Countries)
- Timezones: 400+ timezones from PHP with UTC offsets
- Currencies: 100+ currencies with symbols
- Settings: All WooCommerce store options
✅ UI Improvements:
- Country select: Full list instead of 5 hardcoded
- Timezone select: Grouped by continent with UTC offsets
- Currency select: Full list with symbols
- Already using shadcn components (Input, Select)
✅ Performance:
- 1 hour cache for static data (countries, timezones, currencies)
- 1 minute cache for settings
- Proper loading states
📋 Addresses user feedback:
- ✅ Wire real options for country and timezone
- ✅ Contact fields already use shadcn components
Next: Create custom BACS form with bank account repeater
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