Release dea-scripts v1.0.0 to PyPI

## WBS: WP-P-003 | Web Viewer & Packaging

**Phase:** Release | **Layer:** L2 — Tooling | **Priority:** Critical

## Objective
Publish dea-scripts to PyPI.

## Deliverables
- [ ] Package: `dea-scripts`
- [ ] Published to PyPI
- [ ] Version: v1.0.0
- [ ] README rendered on PyPI
- [ ] PyPI badge in dea-scripts repo README