Retrieves a paginated list of short-form videos (Shorts) from a YouTube channel, including each short's title, URL, view count (views), likes, comments, description, and publish date. publishDate is a full ISO 8601 timestamp with an offset when YouTube exposes the exact publish time; otherwise it is null. It does not return date-only strings. Supports sorting by newest or popular; use the continuationToken to page through all results. Returns data in the shorts array. Uses the caller's OpenAny gateway credentials. Charges and authorization are determined by the gateway.