- portainer-compose.yml now owns all three management-plane services:
portainer, github-runner, watchtower. All mount the docker socket;
none belong to the application stack.
- Watchtower carries over its existing env (DOCKER_API_VERSION, ntfy URL).
portainer, runner, and watchtower itself are labeled to opt out of
watchtower auto-updates.
- docker-compose.yml: remove github-runner (was causing self-kill during
dc up -d; exclusion workaround no longer needed)
- deploy.yml: simplified back to plain dc up -d with no service filtering