Keep ISO staging compatible with Colibri rc.d sources that already use colibri_daemon_binary and include pid/socket chmods. This lets the source rc.d file be copied directly for live USB repair while preserving compatibility with older Colibri sources.\n\nChecks: sh -n scripts/stage-colibri-iso.sh; fake staging against old and corrected Colibri rc sources; sh -n staged rc.d scripts; git diff --check.
