Function get_images 

pub async fn get_images(
    infra: &InfraContext<'_>,
    token: &str,
    params: &GetImagesParams,
) -> Result<Vec<Image>, Error>

Fetch IMS images from the backend, oldest-first (newest last).

Filters server-side by params.pattern (glob syntax, matched against image.name) and by the params.since / params.until creation-date bounds, then selects the newest params.limit images and returns them oldest-first for display. Selection happens before the display flip, so limit = 1 yields the single newest image (see sort_and_cap).

Both filters run here rather than at the backend because IMS accepts no query parameters at all — ImsTrait::get_images takes only an optional image id.

An invalid glob (unbalanced bracket, malformed range, …) or a since later than until returns [Error::BadRequest]; the caller’s handler layer maps that to HTTP 400.