Backend-WIP: Kontakt-Queue, Page-Cache, Validierungs-Feedback, i18n

Gebuendelt, da ueber gemeinsame lang-/Service-Dateien verschraenkt:
- Kontakt-Nachrichten: contact_messages-Tabelle + Model/Enums/Factory,
  Admin-Queue (livewire/admin/contact-messages), ContactController
  persistiert das Anliegen zusaetzlich zur Brand-Mail
- Page-Data-Cache (Services/Web/*PageData) + web-archive-Indizes auf
  press_releases
- Validierungs-Feedback + Company-Portal-Restriction (Feature-Tests)
- i18n-Auslagerung lang/de|en (auth, passwords, validation, static)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

database/factories/ContactMessageFactory.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Enums\ContactMessageStatus;
+use App\Enums\ContactMessageTopic;
+use App\Models\ContactMessage;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/**
+ * @extends Factory<ContactMessage>
+ */
+class ContactMessageFactory extends Factory
+{
+    /**
+     * @return array<string, mixed>
+     */
+    public function definition(): array
+    {
+        return [
+            'portal' => 'presseecho',
+            'topic' => fake()->randomElement(ContactMessageTopic::cases()),
+            'status' => ContactMessageStatus::Open,
+            'name' => fake()->name(),
+            'email' => fake()->safeEmail(),
+            'message' => fake()->sentence(12),
+            'page_url' => fake()->url(),
+            'payload' => null,
+            'requester_ip' => fake()->ipv4(),
+        ];
+    }
+
+    public function topic(ContactMessageTopic $topic): static
+    {
+        return $this->state(['topic' => $topic]);
+    }
+
+    public function resolved(): static
+    {
+        return $this->state([
+            'status' => ContactMessageStatus::Resolved,
+            'resolved_at' => now(),
+        ]);
+    }
+}