The version-skew banner is no longer an amber warning: it reads
"Server update available" with the raw versions (unreadable for
nightlies) moved to a tooltip. The in-flight rail (Download/Install/
Resume) becomes a single status row, "Downloading…" then
"Restarting…", since the wire installing stage is a sub-second
launcher handoff and "resuming" meant nothing to most people.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>