Release v1.50.0 · Fighter90/career-ops-ui

[1.50.0] — 2026-05-18

WS2 #12 + #27 + #28 — help navigation accessibility.

fix(a11y): help — single h1, labelled+filterable TOC, focus-on-anchor, back-to-top — three #/help findings on a 17-section / 90+-heading guide:
- #28 the doc markdown opened with its own # Title, producing a SECOND <h1> on a page whose header already supplies the canonical h1 (and a h1→h3 jump in some locales). Every article <h1> is now stripped, so there is exactly one h1 and the hierarchy starts cleanly at the <h2> sections.
- #27 the TOC <nav> was an unnamed landmark (two unlabeled <nav>s on the page); it now has aria-label (help.toc). Clicking a TOC entry no longer just scrolls the viewport — focus moves to the section heading (tabindex=-1 + focus()), so keyboard/SR users land in the section.
- #12 no way to find anything in a long doc. A type="search" filter above the TOC narrows entries by heading text live; a floating, aria-labelled Back to top button appears after scrolling, returns to top and moves focus back to the page <h1>. Its scroll listener is removed on hashchange away from #/help (no leak).

2 new keys × 8 locales — help.tocFilter, help.backToTop. i18n-coverage gate green.

test: tests/help-nav-a11y.test.mjs — 6 cases (h1 strip, labelled nav, focus-on-anchor, filter narrows, back-to-top + listener cleanup, 2 i18n keys ×8). 685 → 691. Playwright-verified: 1 h1, TOC aria-label, filter narrows 17→1 on "scan", 0 console errors.

$ npm run test:ci
# 691 / 691 · ✓ no .also( leftovers · ✓ CHANGELOG parity: all 8 locales at v1.50.0