Homework — pay for your order (test mode).

1. Stripe test keys. Create a (free) Stripe account, grab the test publishable key (pk_test_...) and put it in PaymentConfiguration.init. The server uses the matching secret key (sk_test_...).
2. Pay. Cart → "Pay" → PaymentSheet → test card 4242 4242 4242 4242, a future date, any CVC → "Payment complete! 🍕".
3. Check the ordering. Confirm the order appears only after a successful payment. Cancel the PaymentSheet (the "X") — the order should not appear (PaymentCanceled clears clientSecret, and placeOrder isn't called).
4. Stripe Dashboard. Under "Payments" in test mode you'll see your test payment with its amount. That amount must match the cart total.

Required tests:

• Success test: 4242… → order recorded, visible in history.
• Cancel test: canceled payment → no order, the cart remains.
• Decline test: card 4000 0000 0000 0002 (Stripe "decline") → PaymentFailed, you see the error, not a crash.

To submit: screenshots: (1) the Stripe PaymentSheet, (2) "Payment complete", (3) the payment in the Stripe Dashboard test mode.

Next. Pica is functionally complete: QR → menu → cart → login → order → payment → history. In lesson 12 we polish and ship: consistent states, error handling, a signed release (signing, R8), and a signpost on when Clean Architecture is worth it.