* fix(utils): reject zero-norm / invalid quaternions in Rotation
Zero or non-finite inputs previously slipped through and produced NaN
rotation matrices on later convert/apply. Validate shape and scept for
norm > 0 before normalizing.
* fix(teleop): degrade phone AR quat parse like missing pose
Address review on #3988: Rotation.from_quat now rejects zero/NaN
quaternions. Wrap HEBI iOS ARKit permission in ValueError and return the
existing (False, None, None, None) path so teleop does not die mid-session
before tracking is ready.
* style: ruff format long ValueError in rotation.py
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Co-authored-by: Steven Palma <imstevenpmwork@ieee.org>
Bartok