Drop the old 9-image 3x3 grid (4/5/a4/c3/c5/c7/d2/f2/f5.webp) and bring
in 14 new stills as 1.webp..14.webp, laid out as 7 rows of 2 columns at
width=420. Source PNGs (1920x1080 for 1-8, 1200x680 for 9-14) are
resized to fit inside 1200x680 and saved as q=85 WebP — 70-150KB each.
All three README locales (zh/en/ja) share the same paths so a single
asset swap refreshes every edition.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>