fix(meta-data): set/update share meta-data on create/update

Assisted-by: Claude Code:claude-sonnet-4-6
Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

Author: AndyScherzinger

lib/Service/BoardService.php

@@ -400,6 +400,9 @@ public function addAcl(int $boardId, int $type, $participant, bool $edit, bool $
 		$acl->setPermissionEdit($edit);
 		$acl->setPermissionShare($share);
 		$acl->setPermissionManage($manage);
+		$now = time();
+		$acl->setCreatedAt($now);
+		$acl->setLastModifiedAt($now);
 		$newAcl = $this->aclMapper->insert($acl);
 
 		$this->activityManager->triggerEvent(ActivityManager::DECK_OBJECT_BOARD, $newAcl, ActivityManager::SUBJECT_BOARD_SHARE, [], $this->userId);
@@ -451,6 +454,7 @@ public function updateAcl(int $id, bool $edit, bool $share, bool $manage): Acl {
 		$acl->setPermissionEdit($edit);
 		$acl->setPermissionShare($share);
 		$acl->setPermissionManage($manage);
+		$acl->setLastModifiedAt(time());
 		$this->boardMapper->mapAcl($acl);
 		$acl = $this->aclMapper->update($acl);
 		$this->changeHelper->boardChanged($acl->getBoardId());