feat: ad.network unit + verification meta on the home page

src/app/home-content.jsx

@@ -6,6 +6,13 @@ import { useI18n } from '@/lib/hooks/useI18n.js';
 
 const INSTALL_CMD = 'curl -fsSL https://qrypt.chat/install.sh | sh';
 
+// qrypt.chat's ad.network listing (a CrawlProof slot). Like the blog's BlogAd,
+// a plain cross-origin <iframe> to CrawlProof's server-rendered ad: no
+// third-party JavaScript runs in this page.
+const AD_NETWORK_CODE = 'LifRx90nnLMtBYAw';
+const AD_SLOT = 'db16349c-888d-4f7a-b04e-1a4bf1afcb57';
+const AD_FORMAT = 'banner_300x250';
+
 export default function HomeContent() {
   const { t } = useI18n();
   const [copied, setCopied] = useState(false);
@@ -51,6 +58,25 @@ export default function HomeContent() {
         </div>
       </div>
 
+      <aside
+        data-ad-network={AD_NETWORK_CODE}
+        data-cp-ad=""
+        data-slot={AD_SLOT}
+        data-format={AD_FORMAT}
+        className="container"
+        style={{ display: 'flex', justifyContent: 'center', padding: '1.5rem 0' }}
+      >
+        <iframe
+          src={`https://crawlproof.com/api/ads/frame?slot=${AD_SLOT}&format=${AD_FORMAT}`}
+          title="Advertisement"
+          width={300}
+          height={250}
+          scrolling="no"
+          loading="lazy"
+          style={{ border: 0, width: 300, height: 250, maxWidth: '100%' }}
+        />
+      </aside>
+
       <section className="features">
         <div className="container">
           <div className="section-header">

src/app/page.jsx

@@ -5,6 +5,8 @@ const SITE_URL = (process.env.NEXT_PUBLIC_APP_URL ?? process.env.NEXT_PUBLIC_BAS
 export const metadata = {
   alternates: { canonical: '/' },
   openGraph: { url: '/' },
+  // ad.network verifies the site by fetching this page's raw HTML for the code.
+  other: { 'ad.network': 'LifRx90nnLMtBYAw' },
 };
 
 const softwareApplicationJsonLd = {