Render the web site at 110% by default

The operator reads the site at 110% browser zoom; make that the default
scale. Tailwind v4 utilities are rem-based, so `html { font-size:110% }`
scales type, spacing, columns and controls together the way zoom does,
while media queries keep firing at the same viewport widths.

Things that did not scale with the root size and had to move:
- the `lg` reader grid is now 15rem + gap-x-8 (was 16rem + gap-x-10) so
  the TOC sidebar and the 68ch article still fit at 1024-1100px;
- the TOC reveal margin in app.js is 1.5rem of the computed root size
  instead of a fixed 24px, and the run funnel SVG height is `h-3`;
- long unbreakable tokens on the phone-width dashboard (settings group
  ids and headings, config warnings, run warnings) now wrap with
  `overflow-wrap:anywhere`, and the feed candidates table sits in the
  same `.scroll-x` wrapper as the other dashboard tables. Overview and
  feeds already overflowed a 390px viewport before this change; settings
  started to. All three fit now.

Verified with before/after screenshots of 27 pages at 390-1440px on the
seeded dev database: no page body scrolls horizontally, the reader
layout, TOC sidebar and dashboard match the old 110%-zoom rendering.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VXYGBPoHZSDSfE5WcJ9bvj

src/web/templates/dashboard/run.html

@@ -18,7 +18,7 @@
 <thead><tr><th>stage</th><th>share</th><th class="num">reached</th><th class="num">stopped here</th><th>why</th></tr></thead>
 <tbody>{% for stage in funnel %}<tr>
 <td class="cell-tight align-middle"><span class="badge {{ stage.stage }}">{{ stage.stage }}</span></td>
-<td class="funnel-cell"><div class="funnel"><svg width="{{ stage.percent }}%" height="12" role="img" aria-label="{{ stage.reached }} reached"></svg></div></td>
+<td class="funnel-cell"><div class="funnel"><svg class="h-3" width="{{ stage.percent }}%" role="img" aria-label="{{ stage.reached }} reached"></svg></div></td>
 <td class="num align-middle">{{ stage.reached }}</td>
 <td class="num align-middle text-muted">{{ stage.stopped }}</td>
 <td class="reasons cell-wrap align-middle text-muted">{% for reason in stage.reasons %}{{ reason.reason }} <span class="tabular-nums text-ink">{{ reason.count }}</span>{% if !loop.last %} · {% endif %}{% endfor %}</td>
@@ -34,7 +34,7 @@
 </dl></section>
 <section class="card"><h2>Timings</h2><div class="scroll-x"><table><thead><tr><th>stage</th><th class="num">seconds</th></tr></thead><tbody>{% for line in timings %}<tr><td>{{ line.stage }}</td><td class="num">{{ line.seconds }}</td></tr>{% endfor %}<tr><th>total</th><th class="num">{{ timings_total }}</th></tr></tbody></table></div></section>
 <section class="card"><h2>Provider usage</h2><div class="scroll-x"><table><thead><tr><th>provider</th><th class="num">in</th><th class="num">cached</th><th class="num">cache write</th><th class="num">out</th><th class="num">cost</th></tr></thead><tbody>{% for line in providers %}<tr><td>{{ line.provider }}</td><td class="num">{{ line.input }}</td><td class="num">{{ line.cached }}</td><td class="num">{{ line.cache_write }}</td><td class="num">{{ line.output }}</td><td class="num">{{ line.cost }}</td></tr>{% endfor %}</tbody></table></div></section>
-<section class="card" id="warnings"><h2>Warnings</h2>{% if warnings.is_empty() %}<p class="muted">None.</p>{% else %}<ul class="list-disc pl-5 text-warn">{% for warning in warnings %}<li>{{ warning }}</li>{% endfor %}</ul>{% endif %}</section>
+<section class="card" id="warnings"><h2>Warnings</h2>{% if warnings.is_empty() %}<p class="muted">None.</p>{% else %}<ul class="list-disc pl-5 text-warn [overflow-wrap:anywhere]">{% for warning in warnings %}<li>{{ warning }}</li>{% endfor %}</ul>{% endif %}</section>
 <section class="card"><h2>Feeds (top {{ feeds.len() }})</h2><div><table class="table-fixed"><thead><tr><th>feed</th><th class="num w-20">entries</th></tr></thead><tbody>{% for line in feeds %}<tr><td class="truncate" title="{{ line.name }}">{{ line.name }}</td><td class="num w-20">{{ line.count }}</td></tr>{% endfor %}</tbody></table></div></section>
 </div>{% else %}<p class="muted text-sm">This run has no stored report; only the funnel and candidates are available.</p>{% endif %}