Two-step verification surface. 6-digit OTP pin input auto-submits on entry, shows verifying state and an inline error on mismatch, has a 30-second resend cooldown, and swaps to a Verified card with a Continue button on success. Emits `verify` (code), `resend`, and `continue`. `demoCode` prop controls the value the built-in mock validator accepts.
npx shadcn@latest add https://uipkge.dev/r/react/auth-mfa.jsonauth-mfa