Implements get_system_config() in ProxmoxSystemMixin:
- cluster_name from /cluster/status (type=cluster entry)
- cluster_nodes list of online node hostnames
- timezone from /nodes/{node}/time
- hostname, ssh_port, ssh_password_auth with safe defaults
Used by NetOrk's sync task to name the NetBox Cluster after the
actual Proxmox cluster rather than falling back to the site name.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>