fix: Stripe API version (2024-12-18.acacia)

src/lib/stripe/index.ts

@@ -20,7 +20,7 @@ export function getStripe(): Stripe | null {
   if (!key) return null
   if (!stripeInstance) {
     stripeInstance = new Stripe(key, {
-      apiVersion: '2025-10-28.acacia' as Stripe.LatestApiVersion,
+      apiVersion: '2024-12-18.acacia' as Stripe.LatestApiVersion,
       typescript: true,
     })
   }