Spun off from T207847
Copyvios was easier to add than the ORES issues, so it was tackled as a separate patch. This task is document that work.
The Page Curation tool flags Potential issues in the Page info tab of the page curation toolbar, but does not include "Copyvio" as you might see in the feed at Special:NewPagesFeed. Here's an example of such an entry in the feed, see bottom-right:
"Copyvio" should be included in the list of "Possible issues":