Method setSearchPositions

src/ink/ink.tsx:1108–1115

Set the position-based highlight state. Every frame, writes CURRENT * style at positions[currentIdx] + rowOffset. null clears. The scan- * highlight (inverse on all matches) still runs — this overlays yellow * on top. rowOffset changes as the user scrolls (= message's current * scree

(state: {
    positions: MatchPosition[];
    rowOffset: number;
    currentIdx: number;
  } | null)

   *  on top. rowOffset changes as the user scrolls (= message's current
   *  screen-top); positions stay stable (message-relative). */
  setSearchPositions(state: {
    positions: MatchPosition[];
    rowOffset: number;
    currentIdx: number;
  } | null): void {
    this.searchPositions = state;
    this.scheduleRender();
  }

  /**
   * Set the selection highlight background color. Replaces the per-cell