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/components/common/PagePurpose.tsx

@@ -0,0 +1,169 @@
+'use client'
+
+import { useState } from 'react'
+import Link from 'next/link'
+
+export interface PagePurposeProps {
+  title: string
+  purpose: string
+  audience: string[]
+  gdprArticles?: string[]
+  architecture?: {
+    services: string[]
+    databases: string[]
+    diagram?: string
+  }
+  relatedPages?: Array<{
+    name: string
+    href: string
+    description: string
+  }>
+  collapsible?: boolean
+  defaultCollapsed?: boolean
+}
+
+export function PagePurpose({
+  title,
+  purpose,
+  audience,
+  gdprArticles,
+  architecture,
+  relatedPages,
+  collapsible = true,
+  defaultCollapsed = false,
+}: PagePurposeProps) {
+  const [collapsed, setCollapsed] = useState(defaultCollapsed)
+  const [showArchitecture, setShowArchitecture] = useState(false)
+
+  return (
+    <div className="bg-gradient-to-r from-slate-50 to-slate-100 rounded-xl border border-slate-200 mb-6 overflow-hidden">
+      {/* Header */}
+      <div
+        className={`flex items-center justify-between px-4 py-3 ${
+          collapsible ? 'cursor-pointer hover:bg-slate-100' : ''
+        }`}
+        onClick={collapsible ? () => setCollapsed(!collapsed) : undefined}
+      >
+        <div className="flex items-center gap-2">
+          <span className="text-lg">🎯</span>
+          <span className="font-semibold text-slate-700">Warum gibt es diese Seite?</span>
+        </div>
+        {collapsible && (
+          <svg
+            className={`w-5 h-5 text-slate-400 transition-transform ${collapsed ? '' : 'rotate-180'}`}
+            fill="none"
+            stroke="currentColor"
+            viewBox="0 0 24 24"
+          >
+            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 9l-7 7-7-7" />
+          </svg>
+        )}
+      </div>
+
+      {/* Content */}
+      {!collapsed && (
+        <div className="px-4 pb-4 space-y-4">
+          {/* Purpose */}
+          <p className="text-slate-600">{purpose}</p>
+
+          {/* Metadata */}
+          <div className="flex flex-wrap gap-4 text-sm">
+            {/* Audience */}
+            <div className="flex items-center gap-2">
+              <span className="text-slate-400">👥</span>
+              <span className="text-slate-500">Zielgruppe:</span>
+              <span className="text-slate-700">{audience.join(', ')}</span>
+            </div>
+
+            {/* GDPR Articles */}
+            {gdprArticles && gdprArticles.length > 0 && (
+              <div className="flex items-center gap-2">
+                <span className="text-slate-400">📋</span>
+                <span className="text-slate-500">DSGVO-Bezug:</span>
+                <span className="text-slate-700">{gdprArticles.join(', ')}</span>
+              </div>
+            )}
+          </div>
+
+          {/* Architecture (expandable) */}
+          {architecture && (
+            <div className="border-t border-slate-200 pt-3">
+              <button
+                onClick={(e) => {
+                  e.stopPropagation()
+                  setShowArchitecture(!showArchitecture)
+                }}
+                className="flex items-center gap-2 text-sm text-slate-500 hover:text-slate-700"
+              >
+                <span>🏗️</span>
+                <span>Architektur</span>
+                <svg
+                  className={`w-4 h-4 transition-transform ${showArchitecture ? 'rotate-180' : ''}`}
+                  fill="none"
+                  stroke="currentColor"
+                  viewBox="0 0 24 24"
+                >
+                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 9l-7 7-7-7" />
+                </svg>
+              </button>
+
+              {showArchitecture && (
+                <div className="mt-2 p-3 bg-white rounded-lg border border-slate-200 text-sm">
+                  <div className="grid grid-cols-2 gap-4">
+                    <div>
+                      <span className="font-medium text-slate-600">Services:</span>
+                      <ul className="mt-1 space-y-1 text-slate-500">
+                        {architecture.services.map((service) => (
+                          <li key={service} className="flex items-center gap-1">
+                            <span className="w-1.5 h-1.5 bg-primary-400 rounded-full" />
+                            {service}
+                          </li>
+                        ))}
+                      </ul>
+                    </div>
+                    <div>
+                      <span className="font-medium text-slate-600">Datenbanken:</span>
+                      <ul className="mt-1 space-y-1 text-slate-500">
+                        {architecture.databases.map((db) => (
+                          <li key={db} className="flex items-center gap-1">
+                            <span className="w-1.5 h-1.5 bg-green-400 rounded-full" />
+                            {db}
+                          </li>
+                        ))}
+                      </ul>
+                    </div>
+                  </div>
+                </div>
+              )}
+            </div>
+          )}
+
+          {/* Related Pages */}
+          {relatedPages && relatedPages.length > 0 && (
+            <div className="border-t border-slate-200 pt-3">
+              <span className="text-sm text-slate-500 flex items-center gap-2 mb-2">
+                <span>🔗</span>
+                <span>Verwandte Seiten</span>
+              </span>
+              <div className="flex flex-wrap gap-2">
+                {relatedPages.map((page) => (
+                  <Link
+                    key={page.href}
+                    href={page.href}
+                    className="inline-flex items-center gap-1 px-3 py-1.5 bg-white border border-slate-200 rounded-lg text-sm text-slate-600 hover:border-primary-300 hover:text-primary-600 transition-colors"
+                    title={page.description}
+                  >
+                    <span>{page.name}</span>
+                    <svg className="w-3 h-3" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9 5l7 7-7 7" />
+                    </svg>
+                  </Link>
+                ))}
+              </div>
+            </div>
+          )}
+        </div>
+      )}
+    </div>
+  )
+}