fix(files): wrap zip buffer in Uint8Array for NextResponse BodyInit compatibility

Author: waleedlatif1

apps/sim/app/api/files/export/[id]/route.ts

@@ -141,7 +141,7 @@ export const GET = withRouteHandler(
     const zipBuffer = await zip.generateAsync({ type: 'nodebuffer', compression: 'DEFLATE' })
     const zipName = safeFilename(`${record.originalName.replace(/\.[^.]+$/, '')}.zip`)
 
-    return new NextResponse(zipBuffer, {
+    return new NextResponse(new Uint8Array(zipBuffer), {
       status: 200,
       headers: {
         'Content-Type': 'application/zip',