Google Sign-In accounts have no way to authenticate via auth login

[KushH305]

Problem

auth login only accepts email + password, which it POSTs to the login
endpoint. Accounts created via Google Sign-In have no password on the
backend, so there's no credential pair to enter.

Trying "forgot password" to force-provision one doesn't work either —
the backend explicitly rejects it:

Your account was created with Google, simply login with Google!
(noreply@liftoffrank.com)

So Google-only accounts currently have no working path to auth login,
auth refresh, or auth status.

Environment

• OS: Windows
• liftoff-export downloaded from zip file
• Liftoff account: created via Google Sign-In, no password ever set

What I've already ruled out

• Password reset — bounced by the backend (see above)
• Checked auth login --help for a hidden token/flag option — none exists
• No web login exists for Liftoff, so there's no easy DevTools token grab

Ask

Would it be possible to support one of:

• A --token flag or LIFTOFF_TOKEN env var to inject an existing bearer
  token directly (useful for any auth method, not just Google)
• An OAuth/browser-callback flow for auth login when the account uses
  Google Sign-In

Happy to test against my own Google-only account if that's useful for
verifying a fix.