Initial monorepo: shared package and DBIS, ICCC, OMNL, XOM portals

Co-authored-by: Cursor <cursoragent@cursor.com>

DBIS/next.config.js

@@ -0,0 +1,32 @@
+/** @type { import('next').NextConfig } */
+const nextConfig = {
+  transpilePackages: ["@public-web-portals/shared"],
+  async headers() {
+    return [
+      {
+        source: "/:path*",
+        headers: [
+          { key: "X-Frame-Options", value: "DENY" },
+          { key: "X-Content-Type-Options", value: "nosniff" },
+          { key: "Referrer-Policy", value: "strict-origin-when-cross-origin" },
+          {
+            key: "Content-Security-Policy",
+            value: [
+              "default-src 'self'",
+              "script-src 'self'",
+              "style-src 'self' 'unsafe-inline'",
+              "img-src 'self' data: https:",
+              "font-src 'self'",
+              "connect-src 'self'",
+              "frame-ancestors 'none'",
+              "base-uri 'self'",
+              "form-action 'self'",
+            ].join("; "),
+          },
+        ],
+      },
+    ];
+  },
+};
+
+module.exports = nextConfig;