The Passkey Authentication module adds modern, phishing-resistant authentication to both the Client Area and Admin Area. It allows users to securely access their accounts using passkeys supported by YubiKey devices, Apple Keychain, password managers, Chrome, Windows Hello, and other WebAuthn-compatible authenticators. The module can work as an additional MFA security layer for existing accounts, but it also supports fully passwordless authentication. Users can log in directly from the login page by selecting a previously registered passkey, allowing immediate and secure access without entering a password. This provides a faster and more convenient login experience while significantly improving account security. Each client or administrator account can store multiple passkeys, making it possible to use different authenticators across devices and platforms. Users can easily register and manage their passkeys from within their account settings, ensuring flexible and reliable access to their accounts at all times.