Style editorial shell, entry layout, and webfonts

[jasonhnd]

Closes #103

Summary

• Refines the shared shell with an editorial masthead, localized wide-screen subtitle, Home / Domains / Browse / AI nav, underline active state, and a quieter footer.
• Replaces the entry factbar with an evidence strip for confidence, updated date, review-by, source count, machine badge, and original-language link.
• Reduces the left entry rail to the current domain group plus an All domains link, removing per-page all-domain counts.
• Self-hosts Source Serif 4 and Inter with OFL licenses, Latin / Latin-ext woff2 subsets, font-display: swap, fallback metrics, and CJK system-font fallback.
• Updates the UI/UX contract doc for the new masthead and evidence-strip class contract.

Webfont Loading

• Families loaded: 2 (Source Serif 4, Inter). CJK remains system font through Latin / Latin-ext unicode-range only.
• Source Serif 4: 600 only, Latin 21,532 B (the only preloaded file) + Latin-ext 18,376 B.
• Inter: variable 400-700, Latin 48,256 B + Latin-ext 85,068 B.
• Total woff2 payload present: 173,232 B / 169.2 KiB. Only source-serif-4-latin-600.woff2 is preloaded.

Contrast Checks

• Light: body 15.38:1, secondary 7.96:1, muted metadata 4.50:1, rust accent 6.02:1, teal link 6.96:1.
• Dark: body 16.26:1, secondary 11.82:1, muted metadata 7.08:1, amber accent 8.30:1, teal link 10.43:1.

Validation

• bun run build from site/ passed; 4,435 pages built.
• bun run html:check passed: duplicate_id_pages=0, duplicate_ids=0.
• bun run docs:audit passed.
• bun tools/release.ts --check --strict passed.
• bun run i18n:status passed: ja/zh/en stale=0.
• bun tools/wiki_link_audit.ts --fail-on-issues passed: issues=0.
• git diff --check passed.
• Temporary Playwright visual smoke passed 12/12 on /, /ja/, /en/, /zh/, /ja/banking/sony-bank/, and /ja/banking/japan-net-bank-deposit-feature-matrix-2026/ across 1440px desktop and 390px mobile. Checks covered no page-level horizontal overflow, shell controls, active nav, evidence strip, left rail count removal, visible TOC, and CJK body font not using Inter.

Scope Notes

• No corpus, generated surfaces, home page, or domain page files changed.
• No CONTRIBUTING.md added.

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Project	Deployment	Actions	Updated (UTC)
finwiki	Ready	Preview, Comment	Jun 25, 2026 5:38am

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Add the required CHANGELOG entry

This commit updates the UI/UX functional spec and the shell/entry layout, but the diff does not include CHANGELOG.md; /workspace/finwiki/AGENTS.md requires: “When modifying content, structure, indexes, sync status, release status, or operating rules, CHANGELOG.md must be updated within the same work session.” Without that timeline entry, the required work log for this structural UI change is missing, so add the detailed changelog record for scope, validation, and follow-ups before merging.

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