- Line index: cached on disk in .pad/indices/, invalidated by mtime/size,
incremental updates during editing sessions
- Atomic writes: temp files live in .pad/tmp/, excluded from Syncthing via .stignore
- State storage: multi-file JSON approach (state.json, cursors.json, undo/*.json)
over SQLite — simpler, debuggable, sufficient for expected workload
- Undo limits: 1 MB inline cap on deleted field; larger deletions stored in
separate backup files; 10 MB total disk budget for undo directory
- Added search and word wrap sections to the editor spec
- Updated performance guarantees with search/jump targets
- Element is an interface with Region() and Visible() methods
- Concrete types have unexported region/visible/id fields
- Constructors (NewLabel, NewListView) replace embedded Element struct
- Theme simplified to FontSize only
- Removed OnSelect/OnPress callback IDs from element types
- Added internal/ui/ to architecture in spec.md
Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>
