Gravitational Redshift 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.

Previous package note:
Frostyverse Laboratory — Gravitational Redshift Python Test
Package version: 1.0
Built: 2026-08-24
Primary historical basis: H-117
High-resolution confirmation: H-118
