next.config.backup.ts

import type { NextConfig } from "next";

const nextConfig: NextConfig = {
  // Performance optimizations
  compress: true,
  poweredByHeader: false,
  
  // Image optimization
  images: {
    formats: ['image/webp', 'image/avif'],
    minimumCacheTTL: 31536000, // 1 year
  },

  // Static generation optimization
  output: 'standalone',
  
  // Security headers
  async headers() {
    return [
      {
        source: '/(.*)',
        headers: [
          {
            key: 'X-Frame-Options',
            value: 'DENY',
          },
          {
            key: 'X-Content-Type-Options',
            value: 'nosniff',
          },
          {
            key: 'Referrer-Policy',
            value: 'origin-when-cross-origin',
          },
          {
            key: 'X-DNS-Prefetch-Control',
            value: 'on',
          },
        ],
      },
      {
        source: '/sw.js',
        headers: [
          {
            key: 'Cache-Control',
            value: 'public, max-age=0, must-revalidate',
          },
        ],
      },
    ];
  },

  // Redirect trailing slashes
  async redirects() {
    return [
      {
        source: '/:path*/',
        destination: '/:path*',
        permanent: true,
      },
    ];
  },

  // Experimental features for better performance
  experimental: {
    optimizePackageImports: ['react-markdown', 'rehype-highlight'],
  },
};

export default nextConfig;