Converted all notification emails to the branded layout by routing them through a shared Blade template and swapping

the MailMessage builders to use view(). This keeps the existing copy/labels but aligns the look with resources/views/
  emails/partials/layout.blade.php. I also switched the customer add‑on receipt notification to reuse the existing
  branded view and added missing translations for the upload pipeline alert.

tests/Feature/CustomerEmailRenderTest.php

@@ -0,0 +1,119 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Models\Event;
+use App\Models\EventPackage;
+use App\Models\EventPackageAddon;
+use App\Models\GiftVoucher;
+use App\Models\Package;
+use App\Models\Tenant;
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class CustomerEmailRenderTest extends TestCase
+{
+    use RefreshDatabase;
+
+    public function test_customer_emails_render_in_de(): void
+    {
+        app()->setLocale('de');
+
+        [$user, $tenant, $package] = $this->makeCustomerContext();
+
+        $welcome = view('emails.welcome', ['user' => $user])->render();
+        $this->assertStringContainsString('Die Fotospiel.App', $welcome);
+
+        $abandoned = view('emails.abandoned-checkout', [
+            'user' => $user,
+            'package' => $package,
+            'packageName' => $package->name,
+            'timing' => '1h',
+            'resumeUrl' => 'https://example.test/checkout',
+        ])->render();
+        $this->assertStringContainsString($package->name, $abandoned);
+
+        $contact = view('emails.contact-confirmation', ['name' => 'Soren'])->render();
+        $this->assertStringContainsString('Soren', $contact);
+
+        $event = Event::factory()->create(['tenant_id' => $tenant->id]);
+        $eventPackage = EventPackage::create([
+            'event_id' => $event->id,
+            'package_id' => $package->id,
+            'purchased_price' => 59,
+            'purchased_at' => now(),
+        ]);
+        $addon = EventPackageAddon::create([
+            'event_package_id' => $eventPackage->id,
+            'event_id' => $event->id,
+            'tenant_id' => $tenant->id,
+            'addon_key' => 'extra_photos',
+            'extra_photos' => 250,
+            'amount' => 9.0,
+            'currency' => 'EUR',
+            'status' => 'completed',
+            'metadata' => ['label' => 'Extra Fotos'],
+            'purchased_at' => now(),
+        ]);
+        $receipt = view('emails.addons.receipt', ['addon' => $addon])->render();
+        $this->assertStringContainsString('Extra Fotos', $receipt);
+
+        $voucher = GiftVoucher::factory()->create([
+            'message' => 'Herzlichen Glückwunsch!',
+        ]);
+        $gift = view('emails.gift-voucher', [
+            'voucher' => $voucher,
+            'amount' => number_format((float) $voucher->amount, 2),
+            'currency' => $voucher->currency,
+            'forRecipient' => false,
+            'printUrl' => 'https://example.test/print',
+        ])->render();
+        $this->assertStringContainsString($voucher->code, $gift);
+    }
+
+    public function test_customer_emails_render_in_en(): void
+    {
+        app()->setLocale('en');
+
+        [$user, $tenant, $package] = $this->makeCustomerContext();
+
+        $welcome = view('emails.welcome', ['user' => $user])->render();
+        $this->assertStringContainsString('Die Fotospiel.App', $welcome);
+
+        $abandoned = view('emails.abandoned-checkout', [
+            'user' => $user,
+            'package' => $package,
+            'packageName' => $package->name,
+            'timing' => '24h',
+            'resumeUrl' => 'https://example.test/checkout',
+        ])->render();
+        $this->assertStringContainsString('Resume checkout', $abandoned);
+    }
+
+    /**
+     * @return array{0: User, 1: Tenant, 2: Package}
+     */
+    private function makeCustomerContext(): array
+    {
+        $user = User::factory()->create([
+            'first_name' => 'Soren',
+            'last_name' => 'Eberhardt',
+            'username' => 'soren',
+        ]);
+        $tenant = Tenant::factory()->create([
+            'user_id' => $user->id,
+        ]);
+        $user->forceFill(['tenant_id' => $tenant->id])->save();
+
+        $package = Package::factory()->create([
+            'name' => 'Standard',
+            'type' => 'endcustomer',
+            'max_photos' => 500,
+            'max_guests' => 200,
+            'gallery_days' => 30,
+        ]);
+
+        return [$user, $tenant, $package];
+    }
+}