fix(staff): 修复班次重复校验逻辑

buhuazhen

2026-03-20 1e99f2e0b5bfb9182e17037c1b861476a20f8936

 src/main/java/com/ruoyi/collaborativeApproval/dto/SealApplicationManagementDTO.java

@@ -8,4 +8,7 @@
    private String createUserName;
    //所属部门
    private String department;

    //审批人
    private String approveUserName;
}