Auth: convert auth views and verification email to Nova layout

tests/Feature/Auth/RegistrationVerificationMailTest.php

@@ -0,0 +1,43 @@
+<?php
+
+use App\Mail\RegistrationVerificationMail;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+uses(RefreshDatabase::class);
+
+it('registration verification mailable is queued with retry policy', function () {
+    $mail = new RegistrationVerificationMail('token-123');
+
+    expect($mail)->toBeInstanceOf(ShouldQueue::class);
+    expect($mail->tries)->toBe(3);
+    expect($mail->timeout)->toBe(30);
+    expect($mail->backoff)->toBe([60, 300, 900]);
+});
+
+it('registration email contains verification link expiry and support url', function () {
+    config()->set('app.url', 'https://skinbase.example');
+    config()->set('app.name', 'Skinbase');
+
+    $mail = new RegistrationVerificationMail('abc-token');
+    $html = $mail->render();
+
+    expect($html)->toContain('Verify Email');
+    expect($html)->toContain('/verify/abc-token');
+    expect($html)->toContain('expires in 24 hours');
+    expect($html)->toContain('https://skinbase.example/support');
+});
+
+it('registration endpoint still queues verification mail', function () {
+    \Illuminate\Support\Facades\Mail::fake();
+
+    $this->post('/register', [
+        'email' => 'mail-test@example.com',
+    ])->assertRedirect('/register/notice');
+
+    \Illuminate\Support\Facades\Mail::assertQueued(RegistrationVerificationMail::class);
+    $this->assertDatabaseHas('users', [
+        'email' => 'mail-test@example.com',
+        'onboarding_step' => 'email',
+    ]);
+});