Path config for custom log integration?

Yes

Paths respect globs see here

A list of glob-based paths that will be crawled and fetched. All patterns supported by Go Glob are also supported here.

if you put a directory path with * all files will be harvested...
/Users/<username>/Projects/GitLab/hello-world/path/to/my/logs/*

if you do something like this only *.log files will be harvested
/Users/<username>/Projects/GitLab/hello-world/path/to/my/logs/*.log