docs(changelog): drop stale Codex sidecar bullet from v3.5.0

The .codex/agents sidecar + boot-time self-heal it described was reverted
in CLI v2.3.1 (nested in-skill agent is the whole delivery now), so the
bullet no longer matched shipped behavior. Removed from the changelog and
the skill-v3.5.0 GitHub release notes.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

site/pages/changelog.astro

@@ -67,7 +67,6 @@ import '../styles/changelog-faq-kinpaku.css';
         <li><strong>A faster detector with no jsdom.</strong> The HTML/CSS engine was rebuilt from the ground up on <code>htmlparser2</code> and a real CSS cascade resolver, replacing jsdom. On the same 160-file HTML corpus it runs about 20x faster under Node: 0.34s where the old jsdom engine took 6.8s, roughly 2 ms per file instead of 43 ms. Dependency-free and small enough to bundle straight into the skill and run inline, not just in the CLI and the extension.</li>
         <li><strong>Detector: 14 new rules.</strong> <code>cream-palette</code>, <code>em-dash-overuse</code>, <code>marketing-buzzword</code>, <code>numbered-section-markers</code>, <code>aphoristic-cadence</code>, <code>theater-slop-phrase</code>, <code>oversized-h1</code>, <code>extreme-negative-tracking</code>, <code>gpt-thin-border-wide-shadow</code>, <code>repeating-stripes-gradient</code>, <code>image-hover-transform</code>, <code>broken-image</code>, <code>text-overflow</code>, and <code>clipped-overflow-container</code>. 41 deterministic rules total, one canonical registry feeding the CLI, the browser extension, critique, and the evals.</li>
         <li><strong>The skill keeps itself current.</strong> On the first session of the day, Impeccable quietly checks whether a newer version shipped. If one has, it offers to run <code>npx impeccable skills update</code> for you. It always asks first, never nags about a version you declined, and never interrupts the task you're on. Set <code>IMPECCABLE_NO_UPDATE_CHECK=1</code> to turn it off.</li>
-        <li><strong>Codex gets its asset-producer subagent automatically.</strong> Codex reads custom subagents from <code>.codex/agents/</code>, a directory separate from where it reads skills, so installers used to leave the agent behind. Now the skill bundles the agent, notices on boot when a Codex project is missing it, and offers to copy it into place. Fixes the gap reported in #161.</li>
         <li><strong>Sharper craft under the hood.</strong> Beyond the bans, the craft itself got tighter. Small defaults landed where they pay off, like <code>text-wrap: balance</code> on headings, which cleaned up ragged hero type across the ablation runs. And the instructions themselves got leaner: orphan reference files folded into their commands, context loading simplified, and a new LLM-backed test suite that catches instruction-following regressions across three providers on every change. Plus dedicated <a href="/changelog">/changelog</a> and <a href="/faq">/faq</a> pages.</li>
       </ul>
     </article>