fix(admin-v2): Restore complete admin-v2 application

The admin-v2 application was incomplete in the repository. This commit
restores all missing components:

- Admin pages (76 pages): dashboard, ai, compliance, dsgvo, education,
  infrastructure, communication, development, onboarding, rbac
- SDK pages (45 pages): tom, dsfa, vvt, loeschfristen, einwilligungen,
  vendor-compliance, tom-generator, dsr, and more
- Developer portal (25 pages): API docs, SDK guides, frameworks
- All components, lib files, hooks, and types
- Updated package.json with all dependencies

The issue was caused by incomplete initial repository state - the full
admin-v2 codebase existed in backend/admin-v2 and docs-src/admin-v2
but was never fully synced to the main admin-v2 directory.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

admin-v2/next.config.js

@@ -0,0 +1,29 @@
+/** @type {import('next').NextConfig} */
+const nextConfig = {
+  output: 'standalone',
+  reactStrictMode: true,
+  // Allow images from backend
+  images: {
+    remotePatterns: [
+      {
+        protocol: 'http',
+        hostname: 'localhost',
+      },
+      {
+        protocol: 'http',
+        hostname: 'macmini',
+      },
+      {
+        protocol: 'https',
+        hostname: 'macmini',
+      },
+    ],
+  },
+  // Environment variables
+  env: {
+    NEXT_PUBLIC_API_URL: process.env.NEXT_PUBLIC_API_URL || 'http://localhost:8000',
+    NEXT_PUBLIC_OLD_ADMIN_URL: process.env.NEXT_PUBLIC_OLD_ADMIN_URL || 'http://localhost:3000/admin',
+  },
+}
+
+module.exports = nextConfig