Prettier on every new or moved file that was not formatted, so lint:format
holds them; the files taken off the format baseline are the ones that moved
or were formatted on the way.
The gateway imported hostVersion from the plugin install code to put the
version in its welcome frame, which made the realtime domain, imported by
nearly every other, depend on plugins. The running version (image VERSION
or APP_VERSION, else package.json) is app config; runningVersion() holds it
and the plugin host-compat checks call the same function.
Maurice