Revert "Auth fix"

This reverts commit 1c281c9f5d.

src/proxy.ts

@@ -29,15 +29,13 @@ const INSTALL_EXEMPT_PREFIXES = [
   "/sw.js",
 ];
 
-// Build the business Auth.js middleware only when a business request needs
-// it. Manager requests must not construct or invoke this wrapper at all.
-type BusinessProxy = (req: NextRequest) => Response | Promise<Response>;
-let authenticatedProxy: BusinessProxy | undefined;
-
-function getAuthenticatedProxy() {
-  authenticatedProxy ??= NextAuth(authConfig).auth as unknown as BusinessProxy;
-  return authenticatedProxy;
-}
+// Lightweight instance built from the DB-free config — see auth.config.ts.
+// Next.js 16 renamed this file convention from `middleware` to `proxy`
+// (https://nextjs.org/docs/messages/middleware-to-proxy); it now always
+// runs on the Node.js runtime rather than Edge, but this stays split from
+// the full `@/auth` regardless, so checking "is there a session" doesn't
+// spin up a Postgres connection pool on every request.
+const { auth } = NextAuth(authConfig);
 
 /**
  * Nonce-gated 'strict-dynamic' script-src (Next's own documented pattern)
@@ -141,10 +139,7 @@ export async function handleProxyRequest(req: AuthenticatedNextRequest) {
   return response;
 }
 
-export default function proxy(req: NextRequest) {
-  if (process.env.MANAGER_MODE === "true") return handleProxyRequest(req);
-  return getAuthenticatedProxy()(req);
-}
+export default auth(handleProxyRequest);
 
 export const config = {
   matcher: ["/((?!api|_next/static|_next/image|favicon.ico).*)"],