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/app/(admin)/development/unity-bridge/page.tsx

@@ -0,0 +1,39 @@
+'use client'
+
+import { PagePurpose } from '@/components/common/PagePurpose'
+import { getModuleByHref } from '@/lib/navigation'
+import { Box, Construction } from 'lucide-react'
+
+export default function UnityBridgePage() {
+  const moduleInfo = getModuleByHref('/development/unity-bridge')
+
+  return (
+    <div className="space-y-6">
+      {moduleInfo && (
+        <PagePurpose
+          title={moduleInfo.module.name}
+          purpose={moduleInfo.module.purpose}
+          audience={moduleInfo.module.audience}
+          collapsible={true}
+          defaultCollapsed={true}
+        />
+      )}
+
+      <div className="bg-white border border-slate-200 rounded-xl p-8 text-center">
+        <div className="flex justify-center mb-4">
+          <div className="p-4 bg-slate-100 rounded-full">
+            <Box className="w-12 h-12 text-slate-400" />
+          </div>
+        </div>
+        <h2 className="text-xl font-semibold text-slate-800 mb-2">Unity Bridge</h2>
+        <p className="text-slate-600 mb-4">
+          Remote-Steuerung des Unity Editors fuer Game-Development.
+        </p>
+        <div className="inline-flex items-center gap-2 px-4 py-2 bg-amber-50 border border-amber-200 rounded-lg text-amber-700">
+          <Construction className="w-4 h-4" />
+          <span className="text-sm font-medium">In Entwicklung</span>
+        </div>
+      </div>
+    </div>
+  )
+}