Three install-path bugs surfaced by the Ubuntu 24.04 test host:
- 40-panel.sh: replacing the running vps binary failed with ETXTBSY on
adopted installs (vps.service active) and the failure was ignored —
the install "succeeded" with the OLD binary. Stop the service before
cp and die if the copy fails.
- 40-panel.sh: `tee /etc/vpsmgr/.last-install.out` failed on a fresh
host because /etc/vpsmgr does not exist yet (it is created by
`vps install`). mkdir it first.
- 30-traefik.sh: chown vps:vps on /etc/traefik/dynamic ran before the
vps user existed (40-panel creates it), erroring with "invalid user"
and aborting the step under set -e. Skip when the user is absent;
ensureVPSUser re-chowns the dir on every install.
Co-authored-by: CommandCodeBot <noreply@commandcode.ai>
