* address TODO item for split_pane_manager plugin and bound keys
* add split_pane_manager plugin with create/close split view commands
* move sibling focus/move commands from core into plugin system
* remove legacy toggle_source_view plugin
* redesign EditorsContainer to use simpler Box-based layout
* refactor source view API to return (scrolled_window, source_view)
* add source view lifecycle events (create/remove/removed)
* rename GetNewCommandSystemEvent → CreateCommandSystemEvent
* update CommandsController to support command system creation and cleanup
* ensure command systems are removed with their source views
* improve focus border handling across sibling chains
* update telescope integration for new source view structure
* clean up container imports and initialization logic
* remove old keybindings and align with new split pane workflow
* Extract `_proc_move` to centralize cursor and selection handling
* Rework multi-insert cursor movement and key handling (arrow/ctrl/shift/super)
* Add `ignore_leader` support to decouple leader cursor behavior
* Replace `move_word_snake_case` with improved `move_along_word` (fix '-' handling)
* Add `is_super` modifier support and clean up TODO
- Updated folding actions and engine for more consistent behavior.
- Added helper function `is_fold_hidden()` to check fold visibility state.
- Improved gutter renderer to handle collapsible code blocks more reliably.
- Refined tag handling for invisible folds to prevent desync issues.
- Removed code fold Fix related entry in `TODO.md`.
* LSP Client & Manager
Refactored initialization flow to use internal state instead of passing params
Added workspace_path and init_opts to LSPClient
Simplified send_initialize_message() (no external args)
Updated manager/client APIs to require explicit workspace_path and typed init_opts
Improved client lifecycle handling and UI button toggling
* LSP Manager UI
Added {user.home} substitution support in configs
Use live editor buffer for JSON config parsing instead of static template
Minor cleanup and formatting improvements
* Core Widgets
Prevent external modification checks for buffer-only files in SourceFile
Minor formatting cleanup in SourceView
* Plugins / Manifest
Expanded manifest schema: added description and copyright, reordered fields
* Cleanup
Removed TreeSitter compile script and TODO entry
General code formatting and small consistency fixes
chore: remove unused TreeSitter tooling and related TODO entry
- 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)
