dataflow 任务列表显示和执行 BUG

[zanguixuan3]

**A dataflow **日志失败，任务列表显示完成

B dataflow创建任务后，保存并执行，不能立即跳转任务页。需要再点击一次，才跳转，但生成 2条任务。

C dataflow 明明已经将 md转jsonl成功写到库了，最后还有一个 fail ，检查这个逻辑：
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2026-01-15 08:31:01 | INFO | data_engine.tools.preprocess.md_to_jsonl_preprocess:267 - ================================================================================
2026-01-15 08:31:01 | INFO | data_engine.tools.preprocess.md_to_jsonl_preprocess:268 - [EXPORT DEBUG] Upload completed successfully!
2026-01-15 08:31:01 | INFO | data_engine.tools.preprocess.md_to_jsonl_preprocess:269 - [EXPORT DEBUG] Uploaded to repo: longrui/zhongxin2demoPDF
2026-01-15 08:31:01 | INFO | data_engine.tools.preprocess.md_to_jsonl_preprocess:270 - [EXPORT DEBUG] Branch: V2.1
2026-01-15 08:31:01 | INFO | data_engine.tools.preprocess.md_to_jsonl_preprocess:271 - ================================================================================
2026-01-15 08:31:01 | INFO | data_engine.tools.preprocess.md_to_jsonl_preprocess:272 - Successfully uploaded to repo: longrui/zhongxin2demoPDF with branch: V2.1
2026-01-15 08:31:01 | WARNING | data_server.job.JobExecutor:127 - Job 134 still in PROCESSING state in finally block, marking as FAILED

D md本身没有空格的，md2json就不该有空格

【中信期货固定收益（汇率）】美元、美债利率反弹或无法持续——周报20251109.pdf

[LBWhite55]

已处理