Scenario: AJAX submit to Cloud Function, which returns success, then browser navigates to redirect endpoint
Expected Behavior: AJAX call → Success → Navigate to server endpoint → Server redirects
PRD Reference: AC-1.4.2
Future Use: This page will be used to test whether the ListenLayer tracking script can capture form data in two-step hybrid patterns.
Note: This form uses a two-step process: First AJAX validates the submission, then navigates to a server endpoint for the final redirect.