- Remove unused `Locale` type imports from admin pages
- Fix type annotations in easy-pay client test (CID fields as string | undefined)
- Replace `as any` with proper types in limits test
- Fix listSubscriptions test mock response structure (data.data.items)
- Fix formatting with Prettier
- Replace zpay with easy-pay payment provider (new lib/easy-pay/ module)
- Add order history page for users (pay/orders)
- Add GET /api/orders/my endpoint to list user's own orders
- Add GET /api/users/[id] endpoint for sub2api user lookup
- Add order status tracking module (lib/order/status.ts)
- Update config to support easy-pay credentials (merchant ID, key, gateway)
- Update PaymentForm and PaymentQRCode components for easy-pay flow
- Update pay page and admin page with new order management UI
- Update order service to support easy-pay, cancellation, and refund
