fix(payment): consume first recharge offer after payment

src/app/chat/hooks/use-first-recharge-offer-banner.ts

@@ -38,6 +38,8 @@ interface DismissalState {
   dismissed: boolean;
 }
 
+const FIRST_RECHARGE_DEFAULT_DISCOUNT_PERCENT = 50;
+
 export function shouldShowFirstRechargeOfferBanner(
   input: FirstRechargeOfferBannerEligibility,
 ): boolean {
@@ -66,7 +68,7 @@ export function useFirstRechargeOfferBanner({
     loaded: false,
     dismissed: false,
   }));
-  const discountPercent = payment.firstRechargeOffer?.discountPercent ?? 50;
+  const discountPercent = FIRST_RECHARGE_DEFAULT_DISCOUNT_PERCENT;
 
   useEffect(() => {
     if (!isAuthenticatedUser) return;