Fix MakerWorld 2FA duplicate email loop and add email SMTP diagnostics

tests/Feature/AuthAndEmailTest.php

@@ -10,6 +10,7 @@ use App\Models\Material;
 use App\Models\Product;
 use App\Models\User;
 use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\Artisan;
 use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Hash;
 use Illuminate\Support\Facades\Mail;
@@ -215,4 +216,33 @@ class AuthAndEmailTest extends TestCase
                 && str_contains($mail->envelope()->subject, 'Bestelbevestiging');
         });
     }
+
+    public function test_admin_can_trigger_test_email_via_web_and_cli(): void
+    {
+        Mail::fake();
+
+        $admin = User::create([
+            'name' => 'Admin Jouwdriedee',
+            'email' => 'info@jouwdriedee.nl',
+            'password' => bcrypt('Jw3D!x9#QmK7$vR2'),
+            'is_admin' => true,
+        ]);
+
+        $this->actingAs($admin);
+
+        // Web endpoint
+        $response = $this->post(route('admin.content.test-mail'), [
+            'test_email' => 'testgmail@gmail.com',
+        ]);
+
+        $response->assertRedirect();
+        $response->assertSessionHas('success');
+
+        // CLI command
+        $exitCode = Artisan::call('app:test-mail', [
+            'email' => 'testcli@gmail.com',
+        ]);
+
+        $this->assertEquals(0, $exitCode);
+    }
 }