Add `forwardMiddleMouseToCanvas` utility to forward middle mouse button events from DOM widgets to the ComfyUI canvas, enabling workflow panning when the cursor is over a widget. The function is implemented in `vue-widgets/src/main.ts` and documented in the developer guide. Additionally, fix `getPoolConfigFromConnectedNode` to return null for inactive pool nodes.
- Document dual UI systems: standalone web UI and ComfyUI custom node widgets
- Add ComfyUI widget development guidelines including styling and constraints
- Update terminology in LoraRandomizerNode from 'frontend/backend' to 'fixed/always' for clarity
- Include UI constraints for ComfyUI widgets: minimize vertical space, avoid dynamic height changes, keep UI simple
- Add performance note explaining that providing `getMinHeight` and `getHeight` via `options` avoids expensive DOM measurements
- Expand dynamic resizing section with detailed update sequence and common scenarios table
- Update LoraPoolSummaryView.vue with `min-height: 0` to allow flex shrinking
- Update main.ts to provide `getMinHeight` via options and adjust `computeLayoutSize` for performance
- Update documentation to reflect new widget filename `lora-manager-widgets.js`
- Remove `LoraManagerDemoNode` import and registration from `__init__.py`
- Translate development guide from Chinese to English for broader accessibility
- Clean up obsolete demo references to align with actual widget implementation
