3.2.0: Sees the page

The linter read code. Now it also looks at the rendered page, because some
failures only exist after layout.

Render check (new, opt-in)

• uxskill lint --render loads every HTML file in headless Chromium at 390,
  430, 768 and 1280 px and measures the real layout, in LTR and RTL.
• centered-text-off-center: text is centered inside its box, but the box sits
  against the start edge (left in LTR, right in RTL). Reports the drift in px,
  the viewport, the direction, and the source line.
• horizontal-overflow: the page scrolls sideways. Names the element that
  causes it, including a box that fits while its text spills.
• Install: pip install 'uxskill[render]'. Uses Google Chrome when installed,
  else python -m playwright install chromium.
• Found on our own site on first run: a centered heading off by up to 34 px on
  all 18 homepages (only visible between phone and tablet widths, so a
  two-width check missed it), the blog footer credit off by 32 px on 24 posts,
  and a command description pushing the commands page 16 px sideways. All fixed.

New lint rule

• decorative-accent-ruler (high): a short 1-2 px line used as ornament. Fades
  out of transparent, ends in a small dot, or sits as a dash before an eyebrow
  label. Tailwind v3/v4, before:/after: variants, and plain CSS. Full-width
  dividers, tab underlines, hover underlines, progress bars, status dots and
  animated loaders are not flagged. Removed 34 of them from our own site.

Fixed

• placeholder-token-shipped no longer fires on ordinary JSX style objects
  (sx={{ left: fillLeftPercent }}, style={{ marginTop: spacing_md }}). Token
  alternatives are now case-sensitive; lorem ipsum stays case-insensitive.
  Reported with a precise repro by @XanderBezuidenhout (#36).
• A rule whose regex fails to compile is now a test failure instead of being
  silently dropped by the loader.