Write or update duplojs-utils JSDoc documentation files under jsDoc/{namespace}/{function}/, including index.md structure, @example includes, and example.ts usage patterns (classic, curried, and predicate overloads).
Write or update duplojs-utils documentation pages (FR/EN) including API function pages, namespace index pages, and guides, following the repo's structure, MonacoTSEditor examples, required sections, and prev/next metadata.