OverKill Hill P³ offline celestial data engine. Use when implementing or reviewing moon-phase, zodiac-season, Mercury-retrograde, or upcoming lunar-event features in JavaScript or TypeScript. Also activate when a UI needs display-grade night-sky data without a network request. Preserve the repo's ex
OverKill Hill P³ offline celestial data engine. Use when implementing or reviewing moon-phase, zodiac-season, Mercury-retrograde, or upcoming lunar-event features in JavaScript or TypeScript. Also activate when a UI needs display-grade night-sky data without a network request. Preserve the repo's exact functions and return shapes, use the bundled deterministic implementation, and validate date dat