/**
 * Passkey Challenge screen — WebAuthn authentication ceremony
 *
 * Allows users to sign in using a registered passkey (discoverable credential).
 * This triggers navigator.credentials.get() and verifies the assertion response.
 *
 * GET:  Generates WebAuthn authentication options and renders the challenge screen.
 * POST: Verifies the assertion response, resolves the user, and completes login.
 *
 * Passkey authentication bypasses MFA since it already provides strong
 * multi-factor assurance (possession + biometric/PIN).
 *
 * Corresponds to: /u2/passkey/challenge
 */
import type { ScreenDefinition } from "./types";
export declare const passkeyChallengeScreenDefinition: ScreenDefinition;
