v1.0.12

Vectorize PyVista write_exo side set mapping (~40-50x speedup)
∙ Replaced per-cell Python loops with vectorized numpy operations using precomputed face-node topology tables
∙ Replaced 3 separate NearestNDInterpolator calls with a single scipy.spatial.cKDTree build + query
∙ Only iterate over cell types present in the mesh instead of all VTK cell type enum values