Cleans stale Herdr socket/API naming after the Colibri socket rename, preserves Herdr as an optional Linux/macOS display client, marks the clawdie mini-binary service as experimental rather than ISO/deployed-service contract, and removes old internal session logs.\n\nChecks: ./scripts/check-format.sh; cargo fmt --check; git diff --check; sh -n packaging/freebsd/colibri_daemon.in packaging/freebsd/clawdie.in
