feat: store questionnaire responses per disposition

src/Enum/QuestionnaireResponseStatus.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Enum;
+
+enum QuestionnaireResponseStatus: string
+{
+    case DRAFT = 'draft';
+    case SUBMITTED = 'submitted';
+
+    public function label(): string
+    {
+        return match ($this) {
+            self::DRAFT => 'Entwurf',
+            self::SUBMITTED => 'Abgeschickt',
+        };
+    }
+}