E-Mail-Praeferenzen: Opt-out je Mail-Typ + One-Click-Unsubscribe ohne Login

Co-authored-by: Cursor <cursoragent@cursor.com>

database/factories/EmailNotificationOptOutFactory.php

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+<?php
+
+namespace Database\Factories;
+
+use App\Enums\EmailNotificationType;
+use App\Models\EmailNotificationOptOut;
+use App\Models\User;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/**
+ * @extends Factory<EmailNotificationOptOut>
+ */
+class EmailNotificationOptOutFactory extends Factory
+{
+    /**
+     * @return array<string, mixed>
+     */
+    public function definition(): array
+    {
+        return [
+            'user_id' => User::factory(),
+            'type' => fake()->randomElement(EmailNotificationType::cases()),
+        ];
+    }
+}

database/migrations/2026_07_10_154103_create_email_notification_opt_outs_table.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('email_notification_opt_outs', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('user_id')->constrained()->cascadeOnDelete();
+            $table->string('type', 64);
+            $table->timestamps();
+
+            $table->unique(['user_id', 'type']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('email_notification_opt_outs');
+    }
+};