feat: migrate documentation to Fumapress

.github/workflows/tests.yml

@@ -8,14 +8,21 @@ permissions:
   contents: read
 
 jobs:
-  seo:
-    name: SEO publishing contract
+  docs:
+    name: Fumapress docs build
     runs-on: ubuntu-latest
-    timeout-minutes: 5
+    timeout-minutes: 10
     steps:
       - uses: actions/checkout@v7
       - uses: actions/setup-node@v7
         with:
-          node-version: "22"
-      - name: Run SEO contract tests
+          node-version: "24"
+          cache: npm
+      - name: Install dependencies
+        run: npm ci
+      - name: Typecheck
+        run: npm run typecheck
+      - name: Run documentation contract tests
         run: npm test
+      - name: Build and verify the static site
+        run: npm run build