feat: add more integration pages

app/integrations/ghost/page.tsx

@@ -0,0 +1,55 @@
+'use client'
+
+import { IntegrationGuide } from '@/components/IntegrationGuide'
+import { CodeBlock } from '@/components/CodeBlock'
+import { getIntegration } from '@/lib/integrations'
+import { notFound } from 'next/navigation'
+
+export default function GhostIntegrationPage() {
+  const integration = getIntegration('ghost')
+  if (!integration) return notFound()
+
+  return (
+    <IntegrationGuide integration={integration}>
+      <p className="lead text-xl text-neutral-600 dark:text-neutral-400">
+        Add Pulse to your Ghost publication using the built-in Code Injection feature.
+      </p>
+
+      <hr className="my-8 border-neutral-200 dark:border-neutral-800" />
+
+      <h3>Code Injection (Recommended)</h3>
+      <ol>
+        <li>Log in to your Ghost admin panel.</li>
+        <li>Go to <strong>Settings &gt; Code injection</strong>.</li>
+        <li>In the <strong>Site Header</strong> field, paste the following snippet:</li>
+      </ol>
+
+      <CodeBlock filename="Settings → Code injection → Site Header">
+{`<script
+  defer
+  data-domain="your-blog.com"
+  src="https://pulse.ciphera.net/script.js"
+></script>`}
+      </CodeBlock>
+
+      <ol start={4}>
+        <li>Click <strong>Save</strong>.</li>
+      </ol>
+
+      <h3>Theme-Level Integration (Alternative)</h3>
+      <p>
+        If you prefer, you can also add the script directly to your Ghost theme&apos;s <code>default.hbs</code> file, just before the closing <code>&lt;/head&gt;</code> tag. This approach requires re-uploading the theme whenever you make changes.
+      </p>
+
+      <h3>Important Notes</h3>
+      <ul>
+        <li>
+          <strong>data-domain</strong>: Use your publication&apos;s domain (e.g., <code>blog.example.com</code>).
+        </li>
+        <li>
+          Code Injection is available on all Ghost plans, including the free self-hosted version.
+        </li>
+      </ul>
+    </IntegrationGuide>
+  )
+}