feat(payment): add mobile Alipay precreate deep link

frontend/src/types/payment.ts

@@ -76,6 +76,8 @@ export interface CheckoutInfoResponse {
   stripe_publishable_key: string
   /** When true, Alipay payments on mobile always show the QR code instead of redirecting */
   alipay_force_qrcode?: boolean
+  /** When true, official Alipay mobile orders use precreate plus an Alipay app deep link */
+  alipay_mobile_precreate_deep_link?: boolean
 }
 
 // ==================== Orders ====================
@@ -214,6 +216,7 @@ export interface CreateOrderResult {
   out_trade_no?: string
   payment_mode?: string
   resume_token?: string
+  alipay_mobile_precreate_deep_link?: boolean
   oauth?: WechatOAuthInfo
   jsapi?: WechatJSAPIPayload
   jsapi_payload?: WechatJSAPIPayload