deploy/setup_online.sh installs system packages (picamera2, hailo-all best-effort),
builds the venv + pip deps, fetches the MoveNet model, writes /etc/move-detect/edge.env
(prompting or from env vars), installs the systemd unit and starts the service — one
command, no offline bundle. Starts on CPU MoveNet; drop in a HEF for Hailo. numpy left
to the system to avoid shadowing picamera2's build. Air-gapped path (deploy/bundle/*)
unchanged.
