Add star-map Angular app, ETL pipeline, and caveman plugin
Angular 3D star map (galaxy/system/body views, Three.js rendering,
navigation store) plus the NASA ETL tooling that builds the star,
exoplanet and solar-system datasets, Playwright e2e suite, and the
cs:caveman Claude Code plugin (command, agent, skill).
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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