Function add_hw_component 

pub async fn add_hw_component(
    backend: &StaticBackendDispatcher,
    shasta_token: &str,
    target_hsm_group_name: &str,
    parent_hsm_group_name: &str,
    pattern: &str,
    dryrun: bool,
    create_hsm_group: bool,
) -> Result<AddHwResult, Error>

Core logic for adding hardware components to a cluster group. No terminal interaction — suitable for both CLI and HTTP callers.