// Next.js API - User Management & Subscriptions
export async function POST(request) {
  const { email, password, plan } = await request.json()
  
  const user = await createUser({
    email, password: await hash(password),
    subscription: plan, trial_ends: addDays(new Date(), 14)
  })
  
  const subscription = await stripe.subscriptions.create({
    customer: user.stripe_id,
    items: [{ price: getPriceId(plan) }]
  })
  
  return NextResponse.json({ success: true, user: user.id })
}