fix: include drizzle-orm and pg in serverExternalPackages for standalone migration

The entrypoint.sh migration script (migrate.mjs) imports
drizzle-orm/node-postgres/migrator which is never imported by app code.
Next.js standalone trace therefore omits it from node_modules, causing
the container to crash on startup before server.js runs.

Adding drizzle-orm and pg to serverExternalPackages ensures the full
packages are copied into the standalone output, fixing the migration
crash.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

next.config.ts

@@ -2,7 +2,7 @@ import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
   output: "standalone",
-  serverExternalPackages: ["pdf-parse"],
+  serverExternalPackages: ["pdf-parse", "drizzle-orm", "pg"],
 };
 
 export default nextConfig;