/** * Shared "is the app on its way out?" flag for the main process. * * Teardown makes several failures expected rather than exceptional: a sidecar * child dying, a navigation aborting mid-load. Both the sidecar and window code * need the same answer, so the flag lives here instead of being threaded * through either. Listeners are registered at import time (Electron accepts * `app.on` before ready) so no caller can forget to arm it. */ import { app } from "electron"; let quitting = false; const markQuitting = () => {  quitting = true;}; app.on("before-quit", markQuitting);app.on("will-quit", markQuitting);app.on("quit", markQuitting); export const isAppQuitting = (): boolean => quitting;