v1.1.0

Performance and cross-browser polish. No API changes — drop-in upgrade.

Improvements

• Much faster rendering. Reworked the internal build path so many
  SlotText / SlotNumber / SlotLetter instances updating together share a
  single batched layout pass instead of forcing one per instance. Measured
  85–89% faster across mount, CJK, counter-churn, and 24-instance dashboard
  scenarios.
• Smoother initial load. Fixes the load-time jank reported when embedding in
  real apps: slot text in metric-stable fonts no longer double-rolls when web
  fonts finish loading; instances that are offscreen at mount don't build or
  animate until scrolled into view; and each roll's composited layer is released
  once it settles, so a page full of slots no longer holds a GPU layer per digit
  forever.

Fixes

• Firefox: correct vertical alignment for non-Latin text. Ideographs (e.g.
  Japanese/Chinese) rendered via a fallback font sat too high in Firefox; they
  now align identically to Latin text and to Chrome/Safari.

Under the hood

• Showcase/demo page precompiles its JSX at build time (no more Babel-in-browser),
  cutting warm load from ~150 ms to ~25 ms.
• Added bun run bench — an A/B performance benchmark (git baseline vs working
  tree) to guard against future regressions.