Function get_image_analysis 

pub async fn get_image_analysis(
    infra: &InfraContext<'_>,
    token: &str,
) -> Result<Vec<BackendSummary>, Error>

Sequence the two upstream fetches and run the pure linker. Sequenced rather than concurrent: get_all_bootparameters returns a cluster-scale list, and fanning two heavy fetches at the same upstream is the shape that produced upstream connection-resets on the configuration variant.