Multi-engine metasearch. One query fanned out across 2-3 search engines (Brave, Yahoo, Yandex) with results deduplicated

Multi-engine metasearch. One query fanned out across 2-3 search engines (Brave, Yahoo, Yandex) with results deduplicated by URL and merged by reciprocal-rank fusion — consensus ranking across engines instead of one engine's bias, with per-engine rank attribution on every result.