Extensions should list unprocessed packages

[matt-phylum]

Overview

svenmeyer on Discord noticed that when an extension reports unprocessed packages, it only tells you the number of packages and not the names of the packages. Since the extension is running check jobs, nothing is persisted, so you can't go to the UI and see the unprocessed packages there either. You just have to wait.

The API call made by the extension does return the list of incomplete packages now, so the extension could output the incomplete packages so the user knows what's going on.

Acceptance Criteria

• If an extension checks a list of packages and reports that packages have not finished processing, the user can tell what packages they are waiting for