fix(subscription): refine plan price display

src/app/subscription/components/subscription-plan-card.tsx

@@ -69,7 +69,7 @@ export function SubscriptionPlanCard({
         <span className={styles.price}>{plan.price}</span>
       </div>
       <p className={styles.originalPrice}>
-        {plan.originalPrice ? `${plan.currencySymbol}${plan.originalPrice}` : "\u00a0"}
+        {plan.originalPrice ?? "\u00a0"}
       </p>
       <div className={styles.perDayBar} style={perDayStyle}>
         {plan.perDay}

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

@@ -42,7 +42,7 @@ function currencySymbol(currency: string): string {
 
 function formatAmount(amountCents: number | null): string | null {
   if (amountCents === null) return null;
-  return (amountCents / 100).toFixed(2).replace(/\.00$/, "");
+  return (amountCents / 100).toFixed(2).replace(/0$/, "");
 }
 
 function planCaption(