next.config.ts

import type { NextConfig } from "next";

const nextConfig: NextConfig = {
  output: "standalone",
  typescript: {
    ignoreBuildErrors: false,
  },
  reactStrictMode: true,

  // Security headers
  async headers() {
    return [
      {
        source: '/(.*)',
        headers: [
          // Prevent clickjacking
          {
            key: 'X-Frame-Options',
            value: 'DENY',
          },
          // Prevent MIME type sniffing
          {
            key: 'X-Content-Type-Options',
            value: 'nosniff',
          },
          // XSS protection (legacy but still recommended)
          {
            key: 'X-XSS-Protection',
            value: '1; mode=block',
          },
          // Control referrer information
          {
            key: 'Referrer-Policy',
            value: 'strict-origin-when-cross-origin',
          },
          // Control browser features
          {
            key: 'Permissions-Policy',
            value: 'camera=(), microphone=(), geolocation=(), payment=(), usb=()',
          },
        ],
      },
      {
        source: '/api/(.*)',
        headers: [
          {
            key: 'Access-Control-Allow-Origin',
            value: '*',
          },
          {
            key: 'Access-Control-Allow-Methods',
            value: 'GET, POST, PUT, DELETE, OPTIONS',
          },
          {
            key: 'Access-Control-Allow-Headers',
            value: 'Content-Type, Authorization',
          },
        ],
      },
    ];
  },

  // Image optimization
  images: {
    formats: ['image/avif', 'image/webp'],
  },
};

export default nextConfig;