1. Hidden fields now properly hidden in SPA
- Added billing_postcode and shipping_postcode to isFieldHidden checks
- Fields with type='hidden' from PHP now conditionally rendered
2. Coupons now applied to order total
- Added coupons array to order submission payload
- CartController now calls calculate_totals() before reading discounts
- Returns per-coupon discount amounts {code, discount, type}
3. Shipping now applied to order total
- Already handled in submit() via find_shipping_rate_for_order
- Frontend now sends shipping_method in payload
4. Order details now include shipping/tracking info
- checkout/order/{id} API includes shipping_lines, tracking_number, tracking_url
- account/orders/{id} API includes same shipping/tracking fields
- Tracking info read from multiple plugin meta keys
5. Thank you/OrderDetails page shows shipping method and AWB
- Shipping Method section with courier name and cost
- AWB tracking for processing/completed orders with Track Shipment button
0e561d9e8c