Improve to check directory structure

[manabuishii]

Currently sapporo run directory structureis

2chars_of_run_id/run_id/...

So we need check run_request.json in this kind of path.

[manabuishii]

Potentially if some put the file name is run_request.json as their files.
I think sapporo miscount uploaded file ?

[suecharo]

@manabuishii

Indeed, you are right.
If use "**/{RUN_DIR_STRUCTURE['run_request']}", it would also look into dir like the exe_dir, which would degrade performance.
Additionally, if there's another file named run_request.json, it would unintentionally be counted as a run.

I think it's ok to proceed with the merge.