Requires Python 3.12, numpy 2.3.5, scipy 1.17.0. No network calls. Frozen v3 design provided; do not rerun prepare. Run with OPENBLAS_NUM_THREADS=1: python scripts/social-deciles-fusion-v3.py fit; python scripts/social-deciles-fusion-v3.py bootstrap --workers 4; python scripts/social-deciles-fusion-v3.py report. The v1 module is imported for formulas only. verify checks the bundled files; original v1 source archives are not required. Compare results excluding computedAt and solver platform rounding. All 199 regional draws are deterministic.
