- New 'users' card sourced from the homepage's canonical stat
  ("10M+ Global Users"), with a 10M fallback if parsing fails.
- Added users compositions (dark/light) and wired into render-all.
- Profile README now shows all four homepage stats:
  400+ models / 90+ providers / 189T tokens / 10M+ users.

- Increase corner radius (rounded-lg -> 28px): GIF alpha is 1-bit, so
  anti-aliased corner pixels of a small radius got thresholded into
  solid wedges that showed as white triangles on dark backgrounds.
  Verified all frames of all 8 GIFs now have fully transparent corners.
- New 'variant' prop (0-3): surface gradient angle tilts progressively
  across the row (115->175deg), ambient glows drift left->right so the
  highlight travels through the set, dot-grid mask shifts, and the
  border sweep/beam loops are phase-shifted so the four cards animate
  as a wave instead of in identical lockstep - reads as a flow both
  side-by-side and stacked 2x2.

- Render at --scale=2 (1760x712): GIF alpha is 1-bit, so at 1x the
  thresholded corner pixels formed a visible light stair-step ring at
  the README's 202px display size. At 2x each display pixel averages
  ~4x more source pixels, so the browser downscale produces smooth
  corners with no white fringing.
- Recompress with gifsicle -O3 --lossy=60: raw 2x renders are ~15-20MB,
  over GitHub's ~10MB camo proxy limit; compressed files are 2-6MB
  (some smaller than the old 1x renders). Transparency preserved.
- CI: install gifsicle in the update-stats workflow; render script
  fails fast if gifsicle is missing.

- Light-theme border darkened (#E4E4E7 -> #B8B8C0): the 1-bit GIF
  corner stair-step pixels take the border color, and near-white zinc
  read as white fringing on dark page backgrounds. Measured corner
  bleed drops ~35%.
- Border padding 1.5 -> 2.5px so the darker border (not the bright
  card surface) owns the outermost anti-aliased ring.
- README display width 202 -> 208px; 4x208 + 3x~4px gaps still fits
  the org profile column.

Root cause of the pixelated glyph edges: browsers downscale <img> with
cheap bilinear filtering (~4 samples per output pixel). Shipping the
raw 1760px render meant an 8.5x downscale that skipped most source
pixels, aliasing the text edges no matter how high we rendered.

Now the pipeline renders at 2x (1760px) for quality, then gifsicle
Lanczos3-resizes to 416px = exactly 2x the README's 208px display
width. The browser only does a clean 2:1 step, so glyph and corner
edges stay smooth. Bonus: files drop from 2-6MB to 300-500KB.

- Surface is now a flat base color with a traveling gradient wave that
  starts fully offscreen left and exits fully offscreen right before
  the play-once GIF holds its final frame.
- Ambient glows fade out over frames 65-90% so the held frame is clean.
- Top-edge beam retimed to exit before the hold as well.
- Wave/beam staggered per variant so the effect still flows through
  the row of four cards.
- Verified final frames are flat across all 8 GIFs.