forked from 1b-agent/opencadstudio-upstream
Design note for a future migration: motivation, blockers (single-shader rendering, VPORT rect vs split-tree fidelity, per-pane overlays), a phased plan starting with a shader-per-pane spike, and the note that pane_grid does not enable floating viewports. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>