CHW-1104 TOTPRateLimited

too many verification attempts; please log in again

Default message: too many verification attempts; please log in again
HTTP status: 429 (client)

Problem. Too many 2FA verify attempts against the same pending token. Cause. More than five invalid code submissions in a single login flow — the pending token has been discarded to defeat brute-force. Fix. Return to the login screen and authenticate from scratch. HTTP 429.