The checkout app restarts itself after a rebuild

Obeya installed from a checkout rebuilds its app window whenever the app's code changes. Until now, the new build only started if the app had started Obeya itself. With Obeya running from a terminal, the old window ran on until you quit the app. Now the window restarts by itself, at a quiet moment: not while you dictate or watch a demo, and only when the window is in front or closed. Obeya and its agents keep running, and the window comes back at the same place, with the open card and any unsent text.