@ApiOperation("从工作流中删除数据集")
@DeleteMapping("/workflow/{appId}/datasets")
public ResultUtils removeDatasetsFromWorkflow(@PathVariable("appId") String appIdStr, 
                                             @RequestBody List<String> datasetIds) throws Exception {
    try {
        UUID appId = UUID.fromString(appIdStr);
        boolean success = knowledgeBaseService.removeDatasetsFromWorkflow(appId, datasetIds);
        if (success) {
            return ResultUtils.success("数据集删除成功");
        } else {
            return ResultUtils.error("数据集删除失败");
        }
    } catch (IllegalArgumentException e) {
        return ResultUtils.error("无效的 appId 格式");
    } catch (Exception e) {
        return ResultUtils.error("删除数据集失败: " + e.getMessage());
    }
}