Add from_bounding_box classmethod to structured mesh classes #8349

Job	Run time
filter-changes	7s
Python 3.12 (omp=n, mpi=y, dagmc=n, libmesh=n, event=n	25m 49s
Python 3.12 (omp=n, mpi=n, dagmc=n, libmesh=n, event=n	20m 4s
Python 3.14 (omp=n, mpi=n, dagmc=, libmesh=, event=	23m 30s
Python 3.12 (omp=y, mpi=y, dagmc=n, libmesh=n, event=n	30m 42s
Python 3.13 (omp=n, mpi=n, dagmc=, libmesh=, event=	19m 12s
Python 3.14t (omp=n, mpi=n, dagmc=, libmesh=, event=	25m 6s
Python 3.12 (omp=y, mpi=n, dagmc=, libmesh=y, event=	35m 13s
Python 3.12 (omp=y, mpi=n, dagmc=, libmesh=, event=y	30m 42s
Python 3.12 (omp=y, mpi=y, dagmc=, libmesh=y, event=	39m 8s
Python 3.12 (omp=y, mpi=n, dagmc=n, libmesh=n, event=n	27m 16s
Python 3.12 (omp=y, mpi=y, dagmc=y, libmesh=, event=	44m 0s
coverage	5s
Check CI status	2s
	5h 20m 56s

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