next.config.ts

import type { NextConfig } from "next";

const securityHeaders = [
  {
    key: 'X-DNS-Prefetch-Control',
    value: 'on'
  },
  {
    key: 'Strict-Transport-Security',
    value: 'max-age=63072000; includeSubDomains; preload'
  },
  {
    key: 'X-Frame-Options',
    value: 'SAMEORIGIN'
  },
  {
    key: 'X-Content-Type-Options',
    value: 'nosniff'
  },
  {
    key: 'X-XSS-Protection',
    value: '1; mode=block'
  },
  {
    key: 'Referrer-Policy',
    value: 'strict-origin-when-cross-origin'
  },
  {
    key: 'Permissions-Policy',
    value: 'camera=(), microphone=(), geolocation=()'
  }
];

const nextConfig: NextConfig = {
  output: 'standalone',
  async headers() {
    return [
      {
        source: '/api/:path*',
        headers: [
          ...securityHeaders,
          {
            key: 'Cache-Control',
            value: 'no-store, no-cache, must-revalidate, proxy-revalidate'
          }
        ],
      },
    ];
  },
};

export default nextConfig;