What are the steps to integrate Laravel Fortify with two-factor authentication

1. Install Laravel Fortify:

bash
composer require laravel/fortify

2. Add the `TwoFactorAuthenticatable` trait to your `User` model:

php
use Laravel\Fortify\TwoFactorAuthenticatable;

class User extends Authenticatable
{
    use TwoFactorAuthenticatable;
    // ...
}

3. Configure two-factor authentication in your `fortify.php` config file:

php
Features::twoFactorAuthentication([
    'confirmPassword' => true,
]),

4. Build a two-factor authentication management UI in your application where users can enable/disable 2FA and regenerate recovery codes[1][2].

5. Implement the two-factor authentication challenge view. Fortify will automatically redirect to this view during authentication if 2FA is enabled. The view should include a form that submits to the `/two-factor-challenge` endpoint[3].

6. The `/two-factor-challenge` endpoint expects a `code` field containing a valid TOTP token or a `recovery_code` field. If the code is valid, Fortify will log the user in[3].

7. Display the user's two-factor recovery codes, which allow authentication if they lose access to their mobile device[2].

8. Make a POST request to the `/user/two-factor-authentication` endpoint to enable two-factor authentication for the user[4].

The key aspects are providing the UI for managing 2FA settings, handling the verification process, and integrating it with your application's authentication flow. Fortify provides the necessary functionality and endpoints to implement two-factor authentication in your Laravel application.