fix(nextjs): downgrade nextjs due to known issue with bun commonjs module bundling (#1073)

Author: waleedlatif1

apps/sim/next.config.ts

@@ -7,7 +7,6 @@ import { getMainCSPPolicy, getWorkflowExecutionCSPPolicy } from './lib/security/
 
 const nextConfig: NextConfig = {
   devIndicators: false,
-  productionBrowserSourceMaps: false,
   images: {
     remotePatterns: [
       {
@@ -59,6 +58,7 @@ const nextConfig: NextConfig = {
   },
   experimental: {
     optimizeCss: true,
+    turbopackSourceMaps: false,
   },
   ...(isDev && {
     allowedDevOrigins: [

apps/sim/package.json

@@ -96,7 +96,7 @@
     "lenis": "^1.2.3",
     "lucide-react": "^0.479.0",
     "mammoth": "^1.9.0",
-    "next": "15.5.0",
+    "next": "^15.3.2",
     "next-runtime-env": "3.3.0",
     "next-themes": "^0.4.6",
     "openai": "^4.91.1",