Needle-style checkout readiness
Wire this page to a public Payment Link later.
This is the same lightweight checkout boundary used for the Prompt Operations payment lane: public hosted checkout URLs are safe to place behind pricing CTAs, but no Stripe secrets, webhooks, license keys, or gated downloads belong in the static frontend.
Current state: paid checkout is intentionally not live. Configure
PUBLIC_CHECKOUT_URL or PUBLIC_CHECKOUT_URL_PRO only when the signed, hosted
final artifact and fulfillment copy are ready.