Linux has no managed cua-driver autostart, so daemon units are hand-written
against a concrete release directory. The installer prunes all but the last
five release dirs, so a versioned Exec reference crash-loops with 203/EXEC
after every upgrade while every binary-level check stays green (#114748).
doctor now scans systemd user units and XDG autostart entries for cua-driver
Exec targets under packages/releases/<version>/ that no longer exist and
appends a fail check with the packages/current recovery hint, downgrading an
ok overall to degraded (#114748).
fc36a30f85