The library path was injected by the workflow, so an editor opened on
this repo could not resolve `modules/clusterio/*`. It now comes from
the environment in both places.
It cannot be written relative to this repo: emmylua does not normalise
`..` in a library path, and an absolute path containing `..` fails the
same way, so the location has to come from outside.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>