3a4df578ec
Adds back the Parent Container selector in NodeModal, shown when: - child type is lxc or vm (parents: proxmox/vm/lxc/docker_host) - child type is docker_container (parents: docker_host/lxc/vm/proxmox) Selector hidden when no valid candidate node exists on the canvas. Centralizes the parent-type allowlist in getValidParentTypes (shared with the virtual-edge auto-parent helper). ha-relevant: yes