/**
 * Minimal ScrollBox harness.
 *
 * Proves:
 * 1. Upstream Ink fork can render
 * 2. ScrollBox mounts with stickyScroll
 * 3. scrollBy / scrollToBottom work
 * 4. Viewport culling renders only visible children
 * 5. Keyboard scroll (PageUp/Down) works
 *
 * Run: npx tsx src/scrollbox-harness.tsx
 */
export {};
