- ZeroTolerantCounterChecker only tolerates a 0 counter when the stored counter is
also 0; a 0 after a non-zero counter is a rollback and is rejected.
- clusev:reset-admin --disable-2fa now also deletes the user's security keys, so a
compromised key can't revive when 2FA is re-enabled.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- Swap the strict counter checker for a zero-tolerant one so platform
authenticators / synced passkeys (which always report counter 0) can assert,
while non-zero counters still must strictly increase (clone detection).
- Guard registration (options + register) and the UI on hasTwoFactorEnabled, so a
key is never created against a disabled/reset second factor.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
boban