- Fixed Music app layout using incremental edit approach
- Documented RmlUi file encoding issue in DESKTOP-DESIGNER.md
- Added workaround: copy from working file and edit incrementally
- Rename test-apps to base-apps with proper manifest.json for each app
- Add is_system_app flag to app discovery and Lua API
- Fix icon path resolution for /system/icons/ paths
- Add layout.lua and layout.rcss for reusable UI components
- Update home screen to dynamically load all apps from manifests
- Update all app RML files to use layout components
- Comprehensive testing framework documentation with JSON action format
- Add tests/ directory structure for automated UI testing