refactor(task): 优化重复任务处理逻辑

- 修复重复任务时直接使用旧任务ID的问题
- 实现重复任务的更新机制：重置workerId为空，status为0
- 添加taskParams的更新功能
- 集成任务缓存清理机制
- 修正订单购买状态检查的参数传递

src/main/java/com/ycwl/basic/service/task/impl/TaskTaskServiceImpl.java

@@ -439,11 +439,21 @@ public class TaskTaskServiceImpl implements TaskService {
                 }
                 memberVideoEntity.setTaskId(taskEntity.getId());
             } else {
-                log.info("重复task! faceId:{},templateId:{},taskParams:{}", faceId, templateId, sourcesMap);
-                memberVideoEntity.setTaskId(list.getFirst().getId());
-                VideoEntity video = videoMapper.findByTaskId(list.getFirst().getId());
+                log.info("重复task，更新旧任务! faceId:{},templateId:{},taskParams:{}", faceId, templateId, sourcesMap);
+                TaskRespVO existingTask = list.getFirst();
+                // 更新旧任务：重置workerId为空，status为0，更新taskParams
+                TaskEntity taskUpdate = new TaskEntity();
+                taskUpdate.setId(existingTask.getId());
+                taskUpdate.setWorkerId(null);
+                taskUpdate.setStatus(0);
+                taskUpdate.setTaskParams(JacksonUtil.toJSONString(sourcesMap));
+                taskMapper.update(taskUpdate);
+                videoTaskRepository.clearTaskCache(existingTask.getId());
+
+                memberVideoEntity.setTaskId(existingTask.getId());
+                VideoEntity video = videoMapper.findByTaskId(existingTask.getId());
                 if (video != null) {
-                    IsBuyRespVO isBuy = orderBiz.isBuy(list.getFirst().getScenicId(), face.getMemberId(), face.getId(), 0, video.getId());
+                    IsBuyRespVO isBuy = orderBiz.isBuy(existingTask.getScenicId(), face.getMemberId(), face.getId(), 0, video.getId());
                     if (isBuy.isBuy()) {
                         memberVideoEntity.setIsBuy(1);
                         memberVideoEntity.setOrderId(isBuy.getOrderId());