Function get_cluster_nodes 

pub async fn get_cluster_nodes(
    infra: &InfraContext<'_>,
    token: &str,
    params: &GetClusterParams,
) -> Result<Vec<NodeDetails>, Error>

Fetch full node details for every member of the requested HSM groups.

When params.group_name is unset the scope expands to every group the token can access. The optional status_filter matches case-insensitively against either the power or configuration status. Results are sorted by xname for stable rendering.