feat(payment): implement coffee tip plans and update payment flow

src/app/tip/tip-screen.tsx

@@ -80,6 +80,7 @@ export function TipScreen({
       initialPayChannelAppliedRef.current = true;
       paymentDispatch({
         type: "PaymentInit",
+        catalog: "tip",
         payChannel: resolvedInitialPayChannel,
       });
       return;