openrc: single service (ollie.initd) manages both superpowerd and the
elevate adapter via start_post/stop_pre, since supervise-daemon only
supervises one process and openrc has no PartOf equivalent.
systemd: two user services with native dependency management.
superpowerd.service runs the daemon; ollie-elevate-adapter.service
depends on it via Requires+PartOf (auto-stops with superpowerd).
Ollie Agent