fix(subscription): preselect pay channel before navigation

src/app/subscription/subscription-screen.helpers.ts

@@ -1,16 +1,11 @@
-import type { PayChannel, PaymentPlan } from "@/data/dto/payment";
+import type { PaymentPlan } from "@/data/dto/payment";
+export { getDefaultPayChannelForCountryCode } from "@/lib/payment/default_pay_channel";
 
 import type { CoinsOfferPlanView } from "./components/subscription-coins-offer-section";
 import type { VipOfferPlanView } from "./components/subscription-vip-offer-section";
 
 export type SubscriptionType = "vip" | "topup";
 
-export function getDefaultPayChannelForCountryCode(
-  countryCode: string | null | undefined,
-): PayChannel {
-  return countryCode?.trim().toUpperCase() === "PH" ? "ezpay" : "stripe";
-}
-
 export function isVipPlan(plan: PaymentPlan): boolean {
   return plan.vipDays !== null;
 }