获取已办任务列表接口修改

airport-system/src/main/java/com/sundot/airport/system/service/approval/impl/ApprovalEngineServiceImpl.java

@@ -322,7 +322,15 @@ public class ApprovalEngineServiceImpl implements IApprovalEngineService {
     @Override
     public List<ApprovalTask> getUserCompletedTasks(Long userId) {
         return taskMapper.selectApprovalTaskByAssignee(userId, null)
-                .stream().filter(task -> !"PENDING".equals(task.getStatus())).collect(Collectors.toList());
+                .stream().filter(task -> !"PENDING".equals(task.getStatus()))
+                .collect(Collectors.toMap(
+                        item -> Arrays.asList(item.getInstanceId(), item.getNodeId()), // 组合键
+                        item -> item,
+                        (existing, replacement) -> existing // 冲突时保留已存在的（第一个）
+                ))
+                .values()
+                .stream()
+                .collect(Collectors.toList());
     }
 
     /**