구독/결제 연동

// Stripe Webhook → Supabase 동기화
// app/api/webhook/stripe/route.ts
export async function POST(req: Request) {
  const event = stripe.webhooks.constructEvent(...)

  switch (event.type) {
    case 'customer.subscription.created':
      await supabase.from('subscriptions').upsert({
        user_id: metadata.userId,
        status: 'active',
        plan: subscription.items.data[0].price.id
      })
      break
    case 'customer.subscription.deleted':
      await supabase.from('subscriptions')
        .update({ status: 'canceled' }).eq('user_id', userId)
  }
}