Communication between linting and properties panel happens via the eventBus, cf. my answer to a similar question: Properties panel error badge is not showing - #2 by jarekdanielak
Could you please explain what needs to be done in order to swap the custom linting for camunda/linting and swap the modeler for the camuna modeler
We believe the documentation on our project is enough to get you started. We are happy to answer specific, self-contained questions in the forum, but you need to do your homework. 