moon_libration_simulator

Merge pull request #3 from themorgantown/claude/moon-libration-preamble-j13al4

Add libration GIF and intro preamble to top of page

Merge pull request #2 from themorgantown/claude/mobile-bottom-section-viewport-eeqcj5

Fix bottom period-folding explorer on mobile viewports

Add period-folding explorer and cycle figures generation scripts