Feat: system enrollment error - 500 error during /token

angela-tran commented 2 months ago

Part of #2032

[x] 500-level error that occurs during /token returns a JSON response that is used to send user to /enrollment/error
[x] /enrollment/error shows system enrollment error template
[x] Sentry notification is sent
[x] Analytic event is sent (failed access token request with status_code in event_properties)

Reviewing / testing

Similar to review steps for #2088, you can add some code locally to simulate a 500 error. To /token, add:

        try:
+          class response:
+             def __init__(self):
+                self.status_code = 500
+
+          raise HTTPError(response=response())
           response = client.request_card_tokenization_access()
        except Exception as e: