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/api/sdk/v1/vendor-compliance/controls/route.ts

@@ -0,0 +1,28 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { CONTROLS_LIBRARY } from '@/lib/sdk/vendor-compliance'
+
+export async function GET(request: NextRequest) {
+  try {
+    const searchParams = request.nextUrl.searchParams
+    const domain = searchParams.get('domain')
+
+    let controls = [...CONTROLS_LIBRARY]
+
+    // Filter by domain if provided
+    if (domain) {
+      controls = controls.filter((c) => c.domain === domain)
+    }
+
+    return NextResponse.json({
+      success: true,
+      data: controls,
+      timestamp: new Date().toISOString(),
+    })
+  } catch (error) {
+    console.error('Error fetching controls:', error)
+    return NextResponse.json(
+      { success: false, error: 'Failed to fetch controls' },
+      { status: 500 }
+    )
+  }
+}