Kotlin MPP

~Since we're only publishing SNAPSHOT this should be fine. And you can always fall back to the individual artifacts if your Gradle metadata version significantly skews.~

Tracking MPP version of Kotlin library.

The issue tracks a Kotlin Multiplatform version of the library but does not name files, tests, or an implementation entry point. Begin by reviewing the repository's Kotlin sources and publication setup; the work is done when the library's multiplatform version is defined and published consistently.

Written by the indexing model from the issue text.