* feat(node-editor, blueprint): add group box and math/logic nodes
node-editor:
- Add visual group box for organizing nodes
- Dynamic bounds calculation based on node pin counts
- Groups auto-resize to wrap contained nodes
- Dragging group header moves all nodes together
blueprint:
- Add comprehensive math nodes (modulo, power, sqrt, trig, etc.)
- Add logic nodes (comparison, boolean, select)
docs:
- Update nodes.md with new math and logic nodes
- Add group feature documentation to editor-guide.md
* chore: remove unused debug and test scripts
Remove FBX animation debug scripts that are no longer needed:
- analyze-fbx, debug-*, test-*, verify-*, check-*, compare-*, trace-*, simple-fbx-test
Remove unused kill-dev-server.js from editor-app
YHH
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