Advanced Filters - Build optimizations

frontend/next.config.js

@@ -1,5 +1,7 @@
 /** @type {import('next').NextConfig} */
 const nextConfig = {
+  // Enable standalone output for optimized Docker builds
+  output: 'standalone',
   // Removed Next.js rewrites since nginx handles all API routing
   webpack: (config, { isServer }) => {
     // Exclude cheerio and its dependencies from client-side bundling