Limit-Status im Upload-Flow anzeigen (Warnbanner + Sperrzustände).

Upload-Fehlercodes auswerten und freundliche Dialoge zeigen.

app/Http/Requests/Tenant/NotificationPreferencesRequest.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace App\Http\Requests\Tenant;
+
+use App\Services\Packages\TenantNotificationPreferences;
+use Illuminate\Foundation\Http\FormRequest;
+
+class NotificationPreferencesRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array<string, mixed>
+     */
+    public function rules(): array
+    {
+        $rules = [
+            'preferences' => ['required', 'array'],
+        ];
+
+        foreach (array_keys(TenantNotificationPreferences::defaults()) as $key) {
+            $rules["preferences.{$key}"] = ['required', 'boolean'];
+        }
+
+        return $rules;
+    }
+
+    protected function prepareForValidation(): void
+    {
+        $this->merge([
+            'preferences' => $this->input('preferences', []),
+        ]);
+    }
+}