Manage only Developer, Xcode and WireGuard from the App Store

Manage only Developer, Xcode and WireGuard from the App Store Drops iWork and iMovie from masApps. Since cleanup is "zap", this is not just a documentation change: brew bundle cleanup uninstalls undeclared Mac App Store apps, so Keynote, Numbers and Pages are removed from the machine. Verified with a dry `brew bundle cleanup`, which names all three. iMovie was dropped from the list too but will survive, because it is not indexed in Spotlight and mas cannot see it. That is an accident of the current index state, not a guarantee. Context for the stall this fixes: the previous switch printed "Installing" for all seven apps and prompted for a password, which would have re-downloaded Xcode over an identical copy. mas had been triggered into a Spotlight reindex and was reporting nothing installed. It lists six apps again now.