packs: no per-question price on the card

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/screens/SubscriptionScreen.tsx

@@ -86,7 +86,6 @@ export function SubscriptionScreen() {
 function PackCard({ plan, onBuy }: { plan: Plan; onBuy: () => void }) {
   const featured = plan.popular;
   const isPack = plan.kind === 'pack';
-  const perQuestion = isPack && plan.questionCredits ? Math.round(plan.price / plan.questionCredits / 10) * 10 : 0;
   const tone = featured ? 'text-white/80' : 'text-muted';
   return (
     <div className="relative pt-3">
@@ -101,7 +100,6 @@ function PackCard({ plan, onBuy }: { plan: Plan; onBuy: () => void }) {
           </div>
           <div className="text-left">
             <p className="text-base font-black">{formatToman(plan.price)}</p>
-            {perQuestion > 0 && <p className={`mt-0.5 text-[11px] ${tone}`}>هر سوال {formatToman(perQuestion)}</p>}
           </div>
         </div>
         <ul className="mb-4 flex flex-col gap-2 text-sm">