- Remove _list_containers_via_socket method
- Remove _inspect_container_via_socket method
- Simplify list_containers and inspect_container to use Portainer API only
- Raise RuntimeError when no Portainer endpoints available
BREAKING: Portainer API configuration is now required for all container
and stack operations. Set PORTAINER_URL and PORTAINER_API_KEY env vars.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>