Add categories (MCC) + Bump min Ruby version + Pre-compile on boot

[garyhtou]

context: https://hackclub.slack.com/archives/C068U0JMV19/p1728260900986359?thread_ts=1727886952.882379&cid=C068U0JMV19

@24c02, feel free to go ahead and fill in the YAML with the data you scraped

TODO:

• [x] Fill in YAML
• [x] Add tests

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[garyhtou]

Thanks for your work here!