fix(payment): support updated plan pricing fields

src/app/subscription/subscription-screen.tsx

@@ -78,7 +78,8 @@ function currencySymbol(currency: string): string {
   return `${currency} `;
 }
 
-function formatAmount(amountCents: number): string {
+function formatAmount(amountCents: number | null): string | null {
+  if (amountCents === null) return null;
   return (amountCents / 100).toFixed(2).replace(/\.00$/, "");
 }
 
@@ -91,9 +92,15 @@ function planCaption(
       ? "Voice package"
       : `${plan.dolAmount} voice messages`;
   }
+  if (plan.dailyPriceCents !== null) {
+    const dailyPrice = formatAmount(plan.dailyPriceCents);
+    return dailyPrice === null
+      ? "Lifetime"
+      : `${currencySymbol(plan.currency)}${dailyPrice}/day`;
+  }
   if (plan.vipDays === null) return "Lifetime";
-  const perDay = plan.amountCents / 100 / Math.max(plan.vipDays, 1);
-  return `${currencySymbol(plan.currency)}${perDay.toFixed(2)}/day`;
+  const fallbackDailyPrice = plan.amountCents / Math.max(plan.vipDays, 1);
+  return `${currencySymbol(plan.currency)}${formatAmount(fallbackDailyPrice)}/day`;
 }
 
 function toPlanView(
@@ -103,8 +110,8 @@ function toPlanView(
   return {
     id: plan.planId,
     name: plan.planName,
-    price: formatAmount(plan.amountCents),
-    originalPrice: null,
+    price: formatAmount(plan.amountCents) ?? "",
+    originalPrice: formatAmount(plan.originalAmountCents),
     perDay: planCaption(plan, subscriptionType),
     currencySymbol: currencySymbol(plan.currency),
   };