Robothrone robotics studio - model source and limits

These are mechanical visual descriptions derived from the manufacturer's
unitree_ros repository at revision 5994d4faef0a9cadd3287f8de0199a67eeb2a259.
The BSD-3-Clause copyright, terms and disclaimer are in OEM-LICENSE.txt.
The copyright holder does not endorse this demonstration.

A2: robots/a2_description/urdf/a2.urdf, 12 actuated joints.
G1: robots/g1_description/g1_29dof_rev_1_0.urdf, 29 actuated joints.
H2: robots/h2_description/H2.urdf, 31 actuated joints.

All link origins, axes, joint limits and source mesh units are retained.
One wrapper changes Z-up to Y-up for web rendering. No body rescaling is used.
Meshes are simplified with a bounded error setting. The separate G1 logo
visual is omitted; its mechanical node is retained. Rendering finish,
roughness and studio lighting are display approximations.

The displayed reference pose starts at zero joint angles and clamps angles
outside the published joint limits. It is not an OEM-approved operating
stance. Measurement values are computed from that displayed geometry,
not advertised product dimensions or final procurement dimensions.

The descriptions omit some exterior cosmetics and separate sensor visuals.
The G1 description is not a complete cosmetic scan of its visor/display.
A2 camera and LiDAR frames are retained as empty frames where the original
description supplies no visible geometry. No invented face, sensor housing,
arm, camera mount or EDU computing module has been added.

A2's two industrial profiles are proposed loadout roles, not two selected
hardware models. Exact inspection sensors and manipulator configuration
are not selected. Those accessories are intentionally not rendered.
G1 and H2 are campus comparison candidates. The mechanical description
does not establish a final EDU edition, hand configuration or order SKU.

Joint motion is limited kinematic inspection, not a physics simulation,
walking demonstration, safety assessment or control of real equipment.
No autonomous patrol, manipulation, ATEX/IECEx, hazardous-area suitability,
accuracy, runtime, availability or physical deployment is asserted.