perf: speed up panel rendering with canvas + coalesced updates#35

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HansRobo wants to merge 1 commit intomainfrom

feat/canvas-render-performance

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HansRobo commented Apr 5, 2026

Summary

migrate panel rendering from SVG DOM injection to Canvas 2D rendering
add cached SVG primitive parsing to reduce repeated parsing cost
add dirty-flag + requestAnimationFrame redraw loop
coalesce /visualizer_svgs updates in 50ms batches (20Hz)
fix aspect-ratio handling so the field is no longer horizontally compressed

Verification

npm run build


          perf: migrate panel rendering to canvas with coalesced updates

ffb72eb

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