CAD visualization plugin for DeepSeek Harness: cad_view / cad_info tools with an embedded 3D (STL/OBJ/STEP/IGES) and 2D (DXF/SVG) viewer card in the Web UI

Enables an AI to open and operate a CAD viewer for DXF, DWG, and Gerber/Excellon files, zooming, panning, clicking entities, toggling layers, and measuring while receiving updated screens and exact drawing data.