-- Case-briefing checklist: an ordered list of short, player-tickable steps authored per
-- level, sitting alongside the brief body and concepts. Tick state is client-side only,
-- so the server just stores the authored item text and its order.
CREATE TABLE osint.level_brief_checklist_items (
  id UUID PRIMARY KEY,
  board_id UUID NOT NULL REFERENCES osint.boards(id) ON DELETE CASCADE,
  sort_order INTEGER NOT NULL DEFAULT 0 CHECK (sort_order >= 0),
  text TEXT NOT NULL
);
CREATE INDEX level_brief_checklist_items_board_order ON osint.level_brief_checklist_items (board_id, sort_order);