Try this
bundle:list -s | grep zwave
Or just this
list -s | grep zwave
Post the version you’re running and we’ll be able to tell if it’s the dev version.
When you go to this link, you will see this. Clicking on here will get you the dev version.
That’s just the name it gets when it’s discovered.
In HABmin, you can try removing the device from the controller. Select the Thing, click on Tools->Show Advanced, then Set Device as Failed and/or Remove From Controller. Note that I’ve found this to work sometimes, and not work other times.
You can do it either way (but not both at the same time for the reason you discovered). I use Items files for all my items. I have multiple items files (e.g. I have a zwave.items file for all my zwave devices), but there are other ways to do it.