- Add error handling for UTF-8 decoding to gracefully handle invalid bytes
- Refactor DnD target handling with explicit target list and proper context completion
- Remove completed TODO item for file open event emission
- Clean up memory by deleting file contents after decoding
- Implement snake_case-aware word movement that treats underscores as part of words
- Fix selection edge detection to only move when caret is at appropriate boundary
- Add INSERT state guards to line_up/down commands
- Add Ctrl+scroll zoom in/out functionality for text size
- Remove obsolete newton.zip archive
- Extract _load_data() method from load_path() for reuse in reload()
- Add is_extters externally_modified() to track file state changes (mtime/size)
- Replace load_bytes() with load_contents() for better error handling
- Add reload() method to re-read file from disk
- Fix file_state_watcher by properly detecting external changes
- Update TODO list (add Terminal plugin, mark file_state_watcher as fixed)
