Delivery-tracker persistence failures (ack/receipt/confirmed Save) were
local-only log lines; a tracker that cannot persist risks double-delivery
or replay-rejection after a crash, so they now tee to the server event
buffer via TeeLogger. The untagged 'Command rejected' line gains ETHOS
tags. install.sh restorecon calls lose their 2>/dev/null — SELinux
relabel failures now print a tagged warning instead of vanishing.
f6bb28e9cd