Query Pipeline

Write createQuery(records) that RETURNS a function query(opts). Each record has { id, score }. opts may contain: - minScore, maxScore — inclusive score range; missing bounds are ignored - sortBy — "score" (default) or "id" - order — "asc" (default) or "desc"; ties keep original order - page (1-based, default 1), perPage (default 2) query RETURNS { items, total, page, pages } where items is the current page of results (empty array when the page is out of range) and pages is Math.ceil(total / perPage) (0 when there are no results).

Difficulty: intermediate