Update to kernelCAD

{
  "description": "Show a kernelCAD model in Studio and act on the user's painted review marks. Use when the user wants to see the model, or says they marked/painted/circled something in Studio.",
  "included_files": [],
  "name": "kernelcad-studio-paint",
  "skill_md_contents": "---\nname: kernelcad-studio-paint\ndescription: Show a kernelCAD model in Studio and act on the user's painted review marks. Use when the user wants to see the model, or says they marked/painted/circled something in Studio.\n---\n\n# Studio viewer and paint review\n\n## Show the model\n\n- After a green full `evaluate_script`, call `open_in_studio` **once** per\n  project per response and give the user its URL. Reuse that URL; do not call\n  it again in the same response. While `meshStatus` is `building`, poll\n  `get_project`, not `open_in_studio`.\n- For a later revision call `open_in_studio({ project: \"<slug>\", ... })` once;\n  the new viewer replaces the old one.\n\n## Paint review\n\nIn Studio the user can paint over the model to mark what to change. Fetch the\nnewest marks with `review_paint_peek_latest({})` (pass `paths_only: true` to\nskip inline PNGs). The packet holds a screenshot, a red mask and the list of\nparts the paint hit. Edit only those parts, re-evaluate, and show the revision.\nIf the tool returns `empty`, ask the user to paint and submit again. This tool\nis only listed when the server can see the Studio session; if it is absent, ask\nthe user to describe the change in words.\n"
}