zkldi_Tachi/seeds/scripts/rerunners/ongeki

1. Have a working Tachi Docker container.
2. Parse music data
   1. Generate music.json (you should know how) without omnimixes or custom charts, then put it in seeds/scripts/rerunners/ongeki/ongeki.
   2. In the container, in seeds/scripts/rerunners/ongeki, run npx ts-node parse-music-data.ts.
   3. Check if parse-music-data-output.json doesn't list anything unexpected, then delete it.
3. Parse song durations
   1. Download vgmstream-cli and put it somewhere in the container.
   2. Run npx ts-node parse-song-duration.ts -v <absolute-path-to-vgmstream-cli> -d <path-to-opts> -g ongeki.
4. Scrape sdvx.in links (optional)
   1. Run npx ts-node scrape-sdvx-in.ts.
   2. Fix any missing entries manually in seeds/collections/charts-ongeki.json (refer to songs-ongeki.json for songIDs).
5. Manually add search terms in songs-ongeki.json, especially romanizations (optional)
6. In the root project folder, run just seeds test.