Free tier:
- checkout-stripe.el bails out immediately for plan=free (no Stripe init)
- checkout-auth.el skips payment section reveal and initStripe for free plan
- checkout-free.el shows #free-success panel after auth (no card ever shown)
- /api/payment-intent returns early for free plan — no Stripe call
Stripe dedup (all paid plans):
- Stripe init now deferred to window.initStripe(email, name), called by
checkout-auth.el after sign-in — email is known before intent is created
- /api/payment-intent finds-or-creates Stripe Customer by email before
creating the PaymentIntent/SetupIntent and attaches customer upfront
- Eliminates the window between intent creation and /api/link-customer
that was producing duplicate guest customers
will.anderson