fix-orbstack-docker-pull

MEDIUM W013: Attempt to modify system services in skill instructions.

• Attempt to modify system services in skill instructions detected (high risk: 0.70). This skill instructs changing local daemon configuration and restarting OrbStack/Docker (writing to ~/.orbstack/config/docker.json, setting network_proxy, running orb restart), which modify the machine's state even though it doesn't request sudo or create users.