Normalized second-order cone data: || A x + a ||_2 <= b'x + beta, one
LinearTerms per row of A x + a plus one for the bound side. Produced
by detect_soc (algebraic quadratic constraints) and
explicit_soc_form (SocConstraints), so backends translate both
through a single shape.
The normalized SocForm view of an explicit SocConstraint. Members
are validated affine at registration, so this only returns None on a
corrupted model (e.g. an ExprId from a different arena).