feat: add two-factor authentication support and related configurations

app/Services/Auth/TwoFactorChallenge.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Services\Auth;
+
+use App\Models\User;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Request;
+
+class TwoFactorChallenge
+{
+    /**
+     * Determine whether the user must complete a two-factor challenge.
+     */
+    public function requiredFor(User $user): bool
+    {
+        return (bool) config('auth-ui.features.two_factor')
+            && $user->hasEnabledTwoFactorAuthentication();
+    }
+
+    /**
+     * Begin a two-factor challenge without authenticating the user.
+     */
+    public function begin(Request $request, User $user, bool $remember = false): RedirectResponse
+    {
+        $request->session()->put([
+            'login.id' => $user->getKey(),
+            'login.remember' => $remember,
+        ]);
+        $request->session()->regenerate();
+
+        return redirect()->route('two-factor.login');
+    }
+}