Managed and embedded sessions

acquire records exactly what it turned on, and release undoes exactly that and nothing else. That is the whole difference between the two modes.

// Managed: TextUI owns the terminal.
await app.start();   // alt screen, raw mode, mouse, bracketed paste, cursor hidden

// Embedded: the host already owns it.
createApp({
  terminal,
  session: { managed: false, altScreen: false, hideCursor: false },
});

A terminal left in raw mode with the cursor hidden is a broken shell, so the Node adapter also releases on exit, SIGINT, SIGTERM and SIGHUP - not only on a tidy stop().