roqsim_sensors/models/oakd/oakd.xml ships NO vendor geometry: the device is a box at the source
URDF's own collision dimensions, the same stand-in roqsim_mobile's turtlebot4 uses. Nothing here is
redistributed artwork.

What IS derived from a third party is every number in that file -- the box size and offset, the
camera's position and orientation, its 56.84 deg fovy (the Gazebo `horizontal_fov` of 1.25 rad
re-expressed vertically at 320x240), and the 0.075 m stereo baseline. They come from:

    https://github.com/ros-navigation/nav2_minimal_turtlebot_simulation
    (nav2_minimal_tb4_description/urdf/sensors/oakd.urdf.xacro)

That package declares its license in its package.xml as Apache 2.0:

    Copyright (c) Open Navigation LLC

    Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
    except in compliance with the License. You may obtain a copy of the License at

        http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software distributed under the
    License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
    either express or implied. See the License for the specific language governing permissions
    and limitations under the License.

The same package ships a visual mesh for this device (meshes/oakd_pro.dae, 12 MB / 152k triangles)
under the same license. It is deliberately not used here -- a decimated conversion was reviewed
against the box and judged not worth carrying. If one is wanted later, that file is the source and
this license covers it.

OAK-D and OAK-D Pro are products of Luxonis Holding Corporation. No Luxonis-supplied asset is
included, and no Luxonis copyright is claimed by the source package or by this model.