Stripe-ready checkout can plug in here later without a full rewrite
The product route, pricing, and CTA flow are already in place. When you are ready, replace this page with a real Stripe Checkout session creator or redirect users to a hosted payment flow.
Resolve the selected template from the query string or product ID.
Create a Stripe product and price mapping in your backend.
Generate a checkout session and redirect the user.
Handle success, cancellation, fulfillment, and license delivery.
