- Extract SearchEngine for core search algorithms
- Extract DecorationManager for visual decorations
- Extract SearchState for state management
- Extract SearchResultTracker for result tracking
- Simplify SearchAddon by delegating to components
- Improve modularity and maintainability
- Use disposableTimeout instead of manual timeout management
- Replace MutableDisposable pattern for SearchAddon highlight timeout
- Replace SearchLineCache timeout with MutableDisposable approach
- Clean up timeout disposal logic in both classes
- Add SearchLineCache class to cache translated buffer lines
- Integrate caching into SearchAddon for line translation
- Improve search performance by avoiding repeated translation
- Add cache invalidation on terminal resize and writes