UI pass: rating widget, issue section headers, ratings verdict column

Finishes the Codex partial (0cdc302) after seeing it rendered.

Rating widget
- Inactive segments go text-ink-2 (ink on hover) so the group recedes
  beside serif body copy; the per-verdict tint stays the only colour.
- Hit area: the ::after overlay is positioned against the padding box,
  so -inset-y-1/-1.5 only gave 37/41 px. Now -inset-y-1.5/-2 -> 41 px
  desktop, 45 px phone.
- focus-visible hugs the segment (z-20, ring-offset-0); the inherited
  ring-offset-2 painted a detached box over the neighbouring buttons.
- The note field is a quiet bottom-hairline input everywhere (rule at
  rest, ink on focus) instead of a box on reader pages and an invisible
  border in tables.

Issue section headers
- The Brief, every section name and Colophon now use one serif
  uppercase, letter-spaced mark on a double rule. A sentence-case
  text-2xl header was screenshotted first and rejected: it reads as
  another headline, which is the problem being fixed.

Ratings table verdict column
- New .rating-cell block: a one-column 15rem grid, segmented group with
  clear/cleared flush right, note field beneath on the same width, group
  top-aligned with the article title. 13rem cannot hold the labels plus
  the wider "cleared" state, so rows wrapped and overlapped the Article
  column.
- Drop the dead CurrentRow::verdict field left over from removing the
  badge (clippy -D warnings).

Also: reader-page on world/behind so the text-wrap: balance polish item
covers those chapters.

Verified on the dev server at 127.0.0.1:3602 in light and dark, desktop
and 390 px: rating clicks toggle .active/aria-pressed with no navigation
and no console output; note text round-trips; cargo fmt, clippy
--all-targets -D warnings, cargo test (445 lib + integration) and
npm run css:check are clean. See docs/plans/briefs/ui-pass/handoff-rating.md.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MD4VWGq6mGcd8Bg67qyx9k

src/web/templates/world.html

@@ -1,3 +1,3 @@
 {% extends "layout.html" %}{% block ears %}<span class="sm:hidden">{{ toc.short_date }}</span><span class="hidden sm:inline">{{ toc.display_date }} · No. {{ toc.issue_number }}</span>{% endblock %}{% block content %}<div class="mx-auto max-w-7xl lg:grid lg:grid-cols-[16rem_minmax(0,1fr)] lg:gap-x-10 lg:px-6 xl:grid-cols-[18rem_minmax(0,1fr)] xl:gap-x-14">{% include "_toc.html" %}
-<article class="mx-auto mt-10 w-full max-w-[68ch] px-4 sm:px-6 lg:mt-12 lg:px-0"><header class="mb-9">{% match display_date %}{% when Some with (date) %}<p class="font-sans text-[0.72rem] uppercase tracking-[0.12em] text-muted">{{ date }}</p>{% when None %}{% endmatch %}<h1 class="mt-2 text-4xl font-semibold leading-[1.1] tracking-[-0.01em] sm:text-5xl">World Briefing</h1></header><div class="prose-body border-t border-rule pt-7">{{ body_html|safe }}</div><p class="mt-10 border-t border-rule pt-5 font-sans text-sm"><a href="{{ issue_href }}">← Back to this issue</a></p></article>
+<article class="reader-page mx-auto mt-10 w-full max-w-[68ch] px-4 sm:px-6 lg:mt-12 lg:px-0"><header class="mb-9">{% match display_date %}{% when Some with (date) %}<p class="font-sans text-[0.72rem] uppercase tracking-[0.12em] text-muted">{{ date }}</p>{% when None %}{% endmatch %}<h1 class="mt-2 text-4xl font-semibold leading-[1.1] tracking-[-0.01em] sm:text-5xl">World Briefing</h1></header><div class="prose-body border-t border-rule pt-7">{{ body_html|safe }}</div><p class="mt-10 border-t border-rule pt-5 font-sans text-sm"><a href="{{ issue_href }}">← Back to this issue</a></p></article>
 </div>{% endblock %}