Supplementary Validation Materials for "OpenPLS Engine: An Open-Source Implementation of Partial Least Squares Structural Equation Modeling Validated Against SmartPLS 4 Across 14 Reference Cases"

Supplementary materials accompanying the validation paper for openpls-engine v1.0.2. Contains: (1) reference sidecar JSONs holding SmartPLS 4 reference values for 14 PLS-SEM cases (path coefficients, indicator loadings, outer weights, R-squared, HTMT, SRMR, d_ULS); (2) per-case path-definition JSONs that specify the structural model for each reference case; (3) validation scripts that re-run openpls-engine against each case and emit per-metric deviation reports; (4) the validation environment using these artefacts together with the openpls-engine package (DOI: 10.5281/zenodo.20509385).