Empty javadocs

The docs (like https://pkl-lang.org/main/current/kotlin-binding/codegen.html) say to look in the javadocs / kdocs for more info on using the Java / Kotlin libraries, but the javadoc.jar files are essentially empty, like:
https://repo1.maven.org/maven2/org/pkl-lang/pkl-config-kotlin/0.25.1/pkl-config-kotlin-0.25.1-javadoc.jar
https://repo1.maven.org/maven2/org/pkl-lang/pkl-codegen-kotlin/0.25.1/pkl-codegen-kotlin-0.25.1-javadoc.jar
https://repo1.maven.org/maven2/org/pkl-lang/pkl-codegen-java/0.25.1/pkl-codegen-java-0.25.1-javadoc.jar

Start with the linked Kotlin binding documentation and inspect the pkl-config-kotlin, pkl-codegen-kotlin, and pkl-codegen-java javadoc.jar files from Maven Central. Trace how their Javadocs or KDocs are generated, then verify that the published archives contain useful documentation for the Java and Kotlin libraries.

Written by the indexing model from the issue text.