Every label edit (assign, undo, redo, group assigns, apply-suggested) used
to ship the full label array back and recompute + re-upload colours for
every point — ~160 MB of work per click on a 10M-point cloud. Now:
- InteractionController's label-editing methods return the touched indices.
- AnnotationService.state(touched=...) responds with labels_delta
{indices, values} instead of the full labels/grouping arrays.
- The client patches its cached labels, recolours only the touched points
(colors.js: makeLabelColorizer is the single per-point rule shared by the
full recompute and the delta path, so they cannot drift), re-evaluates
visibility only where it can change (touched + both selections), and
uploads just the coalesced dirty ranges (viewer.commitColors).
- Isolate mode falls back to the full recompute — its alpha is a function
of the whole selection, not of the edit.
tests/test_web_ui.py drives the real stack headless (worker octree, motion
cut, pick equivalence) and …
Deploy Toaster demo to HF Space — procedural natural-terrain sample
Snapshot of main: the sample generator now builds a procedural natural
terrain (sample.bin still regenerated at image build), demo CLI fixes, web
polish. Space README unchanged; GitHub-only binaries stay out.
