Apply Rigid Transform

Apply Rigid Transformation to Mesh

/**
 * Node that applies a rigid transformation to a mesh.
 * 
 * Transforms mesh vertices using a precomputed rigid transform
 * (translation, rotation, scale) from a Rigid Fit operation.
 * 
 * Usage:
 * 1. Connect mesh and rigid transform data
 * 2. Output is the transformed mesh
 */