feat: autograd support for rotated Box

[rahul-flex]

Autograd support for the Transformed class when the base geometry is a Box under rotation. Key changes are:

Rotated Normals:
Box face derivatives now accept rotation matrix, ensuring that the face derivative computed use rotated normals.

Derivative Computation:
The derivative with respect to rotated faces is computed using the surface mesh and gradient surfaces.

Testing:
Finite difference checks to validate autograd computations.
Emulated simulation test cases to verify rotation.
Test results attached for 7 cases: box, box with background structure, 0 deg rotation, 90 deg rotation about z, 45 deg about y, 45 deg about x, and 45 deg about z.