Added #

• OptimizedListView<T> - Zero-rebuild ListView
  • Automatic pagination with threshold detection
  • Custom loader widget support
  • Configurable scroll direction and physics
  • Performance optimization config
• OptimizedGridView<T> - Zero-rebuild GridView
  • SliverGridDelegateWithFixedCrossAxisCount support
  • Configurable spacing and aspect ratio
  • Pagination support
• OptimizedListController<T> - ChangeNotifier-based controller
  • addItems() - Append items for pagination
  • updateItem() - Update single item without full rebuild
  • replaceAll() - Replace all items
  • removeAt() - Remove item at index
  • clear() - Clear all items
  • setLoading() - Manage loading state
• OptimizationConfig - Performance tuning
  • itemExtent - Fixed item height for best performance
  • cacheExtent - Scroll cache size
  • useRepaintBoundary - Isolate item repaints
  • keepAlive - Keep items alive when scrolled away
• Type definitions
  • OnLoadMore - Pagination callback
  • LoaderBuilder - Custom loader widget builder
  • OptimizedItemBuilder<T> - Item builder with index