[grade=B] SEO: getting-started + 2 app-guide articles + JSON-LD on 77 app guides and blog breadcrumbs/FAQ

package.json

@@ -6,6 +6,7 @@
     "dev": "next dev",
     "prebuild": "node scripts/generate-sitemap.mjs",
     "build": "next build",
+    "postbuild": "node scripts/inject-structured-data.mjs",
     "start": "next start",
     "lint": "eslint"
   },