feat: migrate Payload CMS to MDX and harden static infrastructure

app/health/fix-avb/route.ts

@@ -1,16 +0,0 @@
-import { getPayload } from 'payload'
-import config from '@payload-config'
-
-export async function GET() {
-  const payload = await getPayload({ config })
-  
-  await payload.update({
-    collection: 'pages',
-    id: 6,
-    data: {
-      excerpt: '',
-    },
-  })
-
-  return Response.json({ success: true, message: 'AVB excerpt cleared' })
-}