refactor: retire the hand-written site

Deletes the pre-Astro pages, scripts, and stylesheets that the migration
replaced, and moves the ones it did not replace out of the way.

Deleted (32 files): app.js, responsive.css, landing.css, rules/app.js,
rules/styles.css, skills/app.js, the ten route index.html files, and the
root hands-on/ copy, which is byte-identical to public/hands-on/ -- the
one the build actually ships.

Moved to legacy/ (12 files): styles.css, full-guide/audit.css,
chapters.css, skills/styles.css, skills-review/styles.css,
skills-review/change-lens.css, and the skills-review/app.js module graph.
These are not dead. The Astro pages import them and the build fails
without them, which the plan had not accounted for. They go to legacy/
rather than src/ because check-tokens.mjs sweeps src, and these files are
full of raw hex and unnamed breakpoints: moving one into src/ should mean
migrating it to tokens in the same change, not adding a scan exclusion.
The prettier, stylelint, and eslint ignore lists that already named these
files at their old paths now name legacy/ instead.

verify.mjs no longer reads app.js. The 102 Portuguese strings were
extracted from its translations.pt object before deletion into
.agents/snapshots/full-guide-pt.json -- a legacy capture, not a snapshot
of the Astro build, so the assertion still compares against an
independent source. The brace-matching helper's assertion is replaced by
one that rejects an empty snapshot entry, without which trimming the
snapshot would make the presence check pass vacuously. Count stays at 84.

audit-ui.mjs reads the ten pages from dist/ and resolves Astro's
base-absolute hrefs against it.

Before deleting anything, rendered-text-diff was run across all ten
routes plus both Portuguese pages: every one at parity, 0 missing and 0
extra. That comparison is not repeatable once the legacy files are gone.
computed-style-diff on /full-guide/ stays at 32 differences, so the moves
are style-neutral.

Docs updated to match: README, AGENTS.md, GATES.md, the architecture
context, the operations guide's lab instructions, and the three skills
that told you to serve the vanilla site.

Publishing is not part of this commit.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

skills/app.js

@@ -1,23 +0,0 @@
-const packageFiles = {
-  skill: { label: 'SKILL.md', title: 'The operating contract', body: 'The one file that should always be loaded. Define the exact trigger, the ordered workflow, safety limits, and the evidence the agent returns.', code: '---\nname: review-ui\ndescription: Review a changed UI for focus, reflow, and motion.\n---\n\n1. Inspect the changed interaction.\n2. Run the UI checks.\n3. Return findings with evidence.' },
-  references: { label: 'references/', title: 'Facts, only when needed', body: 'Keep conditional detail out of the main instruction. A dialog pattern, framework caveat, or accessibility checklist belongs here when it is not needed for every review.', code: 'references/\n└── accessibility.md\n    ├── keyboard interaction patterns\n    └── focus and reflow checklist' },
-  scripts: { label: 'scripts/', title: 'Mechanics that should not depend on memory', body: 'Turn deterministic checks into runnable tools. The agent still judges the result, but it should not have to recreate a viewport test or filename rule by hand.', code: 'scripts/\n└── check-reflow.mjs\n    └── checks 320px, 1280px, and 4K widths' },
-  assets: { label: 'assets/', title: 'Starting material, not hidden instructions', body: 'Use assets for templates and examples a person or agent can copy. Keep them clearly named so package readers can choose the right starting point.', code: 'assets/\n├── review-report.md\n└── focus-test-fixture.html' }
-};
-
-const preview = document.querySelector('#package-preview');
-const buttons = [...document.querySelectorAll('[data-package-file]')];
-function renderPackage(file) {
-  const item = packageFiles[file];
-  preview.classList.remove('is-swapping');
-  void preview.offsetWidth;
-  preview.classList.add('is-swapping');
-  preview.innerHTML = `<span>SELECTED / ${item.label}</span><h3>${item.title}</h3><p>${item.body}</p><pre><code>${item.code}</code></pre>`;
-  buttons.forEach((button) => {
-    const selected = button.dataset.packageFile === file;
-    button.classList.toggle('active', selected);
-    button.setAttribute('aria-selected', String(selected));
-  });
-}
-buttons.forEach((button) => button.addEventListener('click', () => renderPackage(button.dataset.packageFile)));
-renderPackage('skill');

skills/index.html

@@ -1,33 +0,0 @@
-<!doctype html>
-<html lang="en">
-<head>
-  <meta charset="utf-8">
-  <meta name="viewport" content="width=device-width,initial-scale=1">
-  <meta name="description" content="A practical guide to creating compact, reusable AI coding skills.">
-  <title>AI For Dummies — Skills</title>
-  <link rel="stylesheet" href="../chapters.css">
-  <link rel="stylesheet" href="styles.css">
-</head>
-<body>
-  <main>
-    <header class="top"><a href="../summary/">← ROUTE MAP</a><span>03 / SKILLS</span><a href="../skills-review/">review desk ↗</a></header>
-    <section class="hero"><p class="eyebrow">Reusable judgment</p><h1>Teach the<br><em>decision.</em></h1><p>A skill changes behavior. Keep the trigger precise, put the workflow in <code>SKILL.md</code>, and move conditional facts, scripts, and examples into focused files.</p></section>
-    <section class="pipeline package-anatomy">
-      <div><p class="eyebrow">Package anatomy</p><h2>One job.<br>More than<br>one <em>file.</em></h2><p class="package-hint">Choose a file to see why it belongs in the package.</p></div>
-      <div class="package-workbench" data-package-workbench>
-        <div class="package-tree" role="tablist" aria-label="Files in the review-ui skill package">
-          <p>REVIEW-UI / SKILL PACKAGE</p>
-          <button class="active" data-package-file="skill" role="tab" aria-selected="true"><code>├── SKILL.md</code><small>trigger + workflow</small></button>
-          <button data-package-file="references" role="tab" aria-selected="false"><code>├── references/</code><small>conditional facts</small></button>
-          <button data-package-file="scripts" role="tab" aria-selected="false"><code>├── scripts/</code><small>deterministic checks</small></button>
-          <button data-package-file="assets" role="tab" aria-selected="false"><code>└── assets/</code><small>templates + examples</small></button>
-        </div>
-        <article class="package-preview" id="package-preview" aria-live="polite"></article>
-      </div>
-    </section>
-    <section class="practice"><div><p class="eyebrow">Create a skill</p><h2>Observe →<br>trigger →<br>validate</h2></div><div class="steps"><article><b>01</b><div><strong>Observe friction</strong><span>Find a repeated decision or failure.</span></div></article><article><b>02</b><div><strong>Define the trigger</strong><span>Say when it should load and when it should stay out.</span></div></article><article><b>03</b><div><strong>Choose anatomy</strong><span>Use references for facts and scripts for deterministic mechanics.</span></div></article><article><b>04</b><div><strong>Evaluate behavior</strong><span>Test realistic prompts, edge cases, safety, and evidence.</span></div></article></div></section>
-    <nav class="links"><a href="../agents/">Agents & trees →</a><a href="../rules/">Rules case study →</a><a href="../skills-review/">Review submitted skills →</a><a href="../full-guide/#create-skill">Full guide: skill forge →</a></nav>
-  </main>
-  <script src="app.js" defer></script>
-</body>
-</html>

skills/styles.css

@@ -1 +0,0 @@
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