Add pastel presets, piece selection and colors, mask brushes, subdivision and conservative decimation with bounded worker operations and mixed undo history. Amp-Thread-ID: https://ampcode.com/threads/T-01a0b4b4-202c-73f1-984d-9a55c88f9c83 Co-authored-by: Heaust Azure <heaust.azure@gmail.com>
Keep existing viewer URLs compatible and test embedded pages, assets, and isolation headers. Amp-Thread-ID: https://ampcode.com/threads/T-01a0b4b4-202c-73f1-984d-9a55c88f9c83 Co-authored-by: Heaust Azure <heaust.azure@gmail.com>
Add pressure-aware worker sculpting, bounded shared input, project files and history, and compact icon navigation with an XYZ orbit gizmo. Amp-Thread-ID: https://ampcode.com/threads/T-01a0b4b4-202c-73f1-984d-9a55c88f9c83 Co-authored-by: Heaust Azure <heaust.azure@gmail.com>