Add LockTokenCheckResultEnum for lock token validation results

- Introduced `LockTokenCheckResultEnum` with cases to handle various lock token validation outcomes:
  - `NO_LOCK_FOUND`
  - `LOCK_TOKEN_DO_NOT_MATCH`
  - `LOCK_TOKEN_DO_NOT_BELONG_TO_USER`.

src/Bundle/ChillDocStoreBundle/Service/Lock/LockTokenCheckResultEnum.php

@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\DocStoreBundle\Service\Lock;
+
+enum LockTokenCheckResultEnum
+{
+    case NO_LOCK_FOUND;
+    case LOCK_TOKEN_DO_NOT_MATCH;
+
+    case LOCK_TOKEN_DO_NOT_BELONG_TO_USER;
+}