- Implement improved tool state management for drawing and selection tools, ensuring proper handling of canvas selection and event propagation.
- Refactor layer panel to support drag-and-drop functionality with visual indicators for drop positions (above, below, inside).
- Update layer item component to handle visibility and locking states more intuitively, enhancing user experience during layer manipulation.
- Introduce new keyboard shortcuts for selecting all top-level nodes, aligning with manual selection behavior.
- Enhance the README to reflect new features and improvements in the canvas and layer management systems.
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