feat(analytics): add behavior and payment funnel tracking

src/lib/payment/payment_launch.ts

@@ -64,6 +64,7 @@ export interface LaunchEzpayRedirectInput {
   subscriptionType: PendingPaymentSubscriptionType;
   tipCoffeeType?: PendingPaymentTipCoffeeType;
   returnTo?: PendingPaymentReturnTo;
+  onOpened?: () => void;
   onFailed: (errorMessage: string) => void;
 }
 
@@ -73,6 +74,7 @@ export async function launchEzpayRedirect({
   subscriptionType,
   tipCoffeeType,
   returnTo,
+  onOpened,
   onFailed,
 }: LaunchEzpayRedirectInput): Promise<void> {
   log.debug("[payment-launch] launchEzpayRedirect START", {
@@ -121,5 +123,10 @@ export async function launchEzpayRedirect({
     subscriptionType,
     paymentUrl,
   });
-  window.location.href = paymentUrl;
+  try {
+    window.location.href = paymentUrl;
+    onOpened?.();
+  } catch {
+    onFailed("Could not open Ezpay. Please try again.");
+  }
 }