- Backend: PATCH /api/directus/db-pairs/<id> updates level, statement, question (creates question if new, removes if cleared) - Backend: DELETE /api/directus/db-pairs/<id> removes pair + all junctions, questions and statements - Frontend: inline edit form per pair (level slider, statement, question) - Frontend: delete button per pair with confirm dialog - api.ts: updateDbPair, deleteDbPair Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>