[1.54.6] — 2026-05-18
fix(a11y): S-7 — #/help back-to-top button carries the canonical back-to-top selector class.
🐛 Fixes
- The
#/helpfloating back-to-top button worked correctly (verified live) but its class list (btn btn-primary help-back-top) sat outside the.back-to-topselector convention the spec §2 #28 test targets — a tightened selector would have flaked (regression run S-7, "easy win"). The button now also carries the canonicalback-to-topclass. Purely additive and a CSS-no-op:help-back-top(the existing CSS hook) is unchanged andback-to-tophas no CSS rule — it's a stable test/automation handle only. Verified live:document.querySelector('.back-to-top')resolves the button,aria-labelintact, 0 console errors.
🧪 Tests
test: tests/help-nav-a11y.test.mjs— extended the existing #12 case with an assertion that the back-to-top button's class list includes the canonicalback-to-topselector (no new file; 738 unchanged).