fix: 处理null问题

buhuazhen

2026-06-01 facbfd2b1a0eb1ea971b699def8c85a43c5fa7fa

 src/main/java/com/ruoyi/approve/service/IApproveNodeService.java

@@ -17,5 +17,5 @@

    void updateApproveNode(ApproveNode approveNode) throws IOException;

    void delApproveNodeByApproveId(Long id);
    void delApproveNodeByApproveId(String id);
}