fix: exempt standard article metadata from design review

Author: Bill Leoutsakos

design-diff.config.json

@@ -108,13 +108,24 @@
       "title",
       "description",
       "author",
+      "authors",
       "date",
+      "updated",
       "publishedAt",
       "updatedAt",
       "readingTime",
       "tags",
       "category",
-      "keywords"
+      "keywords",
+      "slug",
+      "canonical",
+      "ogAlt",
+      "about",
+      "timeRequired",
+      "faq",
+      "draft",
+      "featured",
+      "technical"
     ],
     "components": [
       {

scripts/design-diff/README.md

@@ -160,6 +160,8 @@ TSX/CSS files that an application build or Tailwind source scan could consume.
 
 Policy 4 exempts routine authoring in the `documentationContent.roots` directories. The parser
 projects out prose, Markdown tables, code samples and recognized frontmatter content fields.
+Article metadata follows the repository content schema, including author/date fields and FAQ
+answers; cover image references remain presentation evidence.
 Configured Fumadocs/repository components are recognized by their import module and named export,
 including local import aliases. Only their declared content props with literal data are exempt;
 standard Callout types and tab labels are authoring options. Unknown widgets, appearance overrides,

scripts/design-diff/tests/document-content.test.ts

@@ -25,6 +25,11 @@ it.each([
     `${faq}<FAQ items={[{question: "Why?", answer: "Before"}]} />`,
     `${faq}<FAQ items={[{question: "Why?", answer: "After"}, {question: "When?", answer: "Now"}]} />`,
   ],
+  [
+    'article metadata and FAQ',
+    '---\nupdated: 2026-07-31\nauthors: [andrew]\nfaq: [{q: Why, a: Before}]\n---',
+    '---\nupdated: 2026-08-29\nauthors: [andrew, bill]\nfaq: [{q: Why, a: After}]\n---',
+  ],
   [
     'callout',
     `${callout}<Callout type="info">Before</Callout>`,
@@ -76,6 +81,7 @@ it.each([
   ['image dimensions', '<img src="/a.png" width={100}/>', '<img src="/a.png" width={200}/>'],
   ['image source', '![Screenshot](/a.png)', '![Screenshot](/b.png)'],
   ['new embedded image', '# Guide', '# Guide\n\n![Screenshot](/a.png)'],
+  ['article cover', '---\nogImage: /a.png\n---', '---\nogImage: /b.png\n---'],
   [
     'unknown frontmatter',
     '---\ntitle: Old\nlayout: narrow\n---',