Admin sign-in
Paste a Cognito ID token for a user in the admin group. The token must be unexpired and include the cognito:groups claim.
How do I get a token?
For now, the fastest path is to run the helper from backend/infra/get-admin-token.js (added in this milestone). It signs in via Cognito SRP and prints an ID token you can paste here.
Phase 2 of the admin panel will add a proper phone+OTP sign-in flow so this page goes away.