Major refactor to solve snap-back issues and create single source of truth for node positions:
- Add Yjs-based CRDT layout store for conflict-free position management
- Implement layout mutations service with clean API
- Create Vue composables for layout access and node dragging
- Add one-way sync from layout store to LiteGraph
- Disable LiteGraph dragging when Vue nodes mode is enabled
- Add z-index management with bring-to-front on node interaction
- Add comprehensive TypeScript types for layout system
- Include unit tests for layout store operations
- Update documentation to reflect CRDT architecture
This provides a solid foundation for both single-user performance and future real-time collaboration features.
Co-Authored-By: Claude <noreply@anthropic.com>
