add form site

next.config.ts

@@ -1,7 +1,54 @@
 import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
-  /* config options here */
+  // Optimisations de performance
+  compress: true,
+  poweredByHeader: false,
+
+  // Headers de sécurité et SEO
+  async headers() {
+    return [
+      {
+        source: "/(.*)",
+        headers: [
+          {
+            key: "X-Content-Type-Options",
+            value: "nosniff",
+          },
+          {
+            key: "X-Frame-Options",
+            value: "SAMEORIGIN",
+          },
+          {
+            key: "X-XSS-Protection",
+            value: "1; mode=block",
+          },
+          {
+            key: "Referrer-Policy",
+            value: "strict-origin-when-cross-origin",
+          },
+          {
+            key: "Permissions-Policy",
+            value: "camera=(), microphone=(), geolocation=()",
+          },
+          {
+            key: "Strict-Transport-Security",
+            value: "max-age=63072000; includeSubDomains; preload",
+          },
+        ],
+      },
+      {
+        // Cache assets statiques longtemps
+        source: "/(.*)\\.(ico|png|jpg|jpeg|gif|svg|webp|woff|woff2)",
+        headers: [
+          {
+            key: "Cache-Control",
+            value: "public, max-age=31536000, immutable",
+          },
+        ],
+      },
+    ];
+  },
 };
 
 export default nextConfig;