Category Hard Data Labeling Script

[CodingWithTim]

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• [x] I've run format.sh to lint the changes in this PR.
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[CodingWithTim]

At the moment, I am taking in cache file and output file as jsonl file unless there is a more effective way at writing to json file row by row.

[CodingWithTim]

Also make sure to set ulimit -n 16384 or other limit accordingly when running larger parallel.