Isotropy / Diagonal Propagation Python Test ZIP
Reviewer package version: 1.0.1-reviewer-ready
Built/polished: 2026-08-25

Packaging-only update:
- Expanded README_FIRST with first-time venv setup, dependency installation, --verify, reference, custom/fresh-input, interactive-menu, and --help examples.
- Scientific calculations and preserved historical research archives are unchanged.
