c05d1ddcdb
PRD 0007: Docker-specific start/stop for the SSH egress gate. Mirrors DockerPipelockProxy: docker create on the internal network with /bin/sh entrypoint, docker cp the staged entrypoint script in, attach to the egress network, docker start. Image is alpine/socat pinned by digest — self-sufficient at boot so the gate's agent-facing leg can stay on the --internal network. Not yet wired into the bottle launch path; that lands next.