Support oft parent groups

app/Models/GlobalSetting.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Models;
+
+use App\Scopes\CommonModel;
+
+/**
+ * App-weite Einstellung als Schlüssel/Wert-Paar (z. B. die Bezeichnungen „Stamm"/„Bund").
+ * Nicht mandantengebunden; gelesen wird über {@see \App\Repositories\GlobalSettingRepository}.
+ *
+ * @property string $key
+ * @property string $value
+ */
+class GlobalSetting extends CommonModel
+{
+    public const string LOCAL_GROUP_LABEL = 'local_group_label';
+    public const string LOCAL_GROUP_LABEL_PLURAL = 'local_group_label_plural';
+    public const string PARENT_GROUP_LABEL = 'parent_group_label';
+    public const string PARENT_GROUP_LABEL_PLURAL = 'parent_group_label_plural';
+
+    protected $table = 'global_settings';
+    protected $primaryKey = 'key';
+    protected $keyType = 'string';
+    public $incrementing = false;
+
+    protected $fillable = [
+        'key',
+        'value',
+    ];
+}