Wallet test handling

[bbtgnn]

When the api route /api/openid4vp-test is hit:

• store user_email and this url $app.settings().meta.appURL + /wallet-test (e.g http://localhost:8000/wallet-test)
• when the workflow sends the email, build this url http://localhost:8000/wallet-test?workflow-id=dsakajshd&qr=dddd

---

create two endpoints:

• wallet-test/confirm-success mandi una POST con solo workflow_id
• wallet-test/notify-failure mandi una POST con { workflow_id, reason }