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/admin/health/route.ts

@@ -0,0 +1,173 @@
+import { NextResponse } from 'next/server'
+
+/**
+ * Server-side health check proxy
+ * Checks all services via HTTP from the server to avoid mixed-content issues
+ */
+
+interface ServiceConfig {
+  name: string
+  port: number
+  endpoint: string
+  category: 'core' | 'ai' | 'database' | 'storage'
+}
+
+const SERVICES: ServiceConfig[] = [
+  // Core Services
+  { name: 'Backend API', port: 8000, endpoint: '/health', category: 'core' },
+  { name: 'Consent Service', port: 8081, endpoint: '/api/v1/health', category: 'core' },
+  { name: 'Voice Service', port: 8091, endpoint: '/health', category: 'core' },
+  { name: 'Klausur Service', port: 8086, endpoint: '/health', category: 'core' },
+  { name: 'Mail Service (Mailpit)', port: 8025, endpoint: '/api/v1/info', category: 'core' },
+  { name: 'Edu Search', port: 8088, endpoint: '/health', category: 'core' },
+  { name: 'H5P Service', port: 8092, endpoint: '/health', category: 'core' },
+
+  // AI Services
+  { name: 'Ollama/LLM', port: 11434, endpoint: '/api/tags', category: 'ai' },
+  { name: 'Embedding Service', port: 8087, endpoint: '/health', category: 'ai' },
+
+  // Databases - checked via backend proxy
+  { name: 'PostgreSQL', port: 5432, endpoint: '', category: 'database' },
+  { name: 'Qdrant (Vector DB)', port: 6333, endpoint: '/collections', category: 'database' },
+  { name: 'Valkey (Cache)', port: 6379, endpoint: '', category: 'database' },
+
+  // Storage
+  { name: 'MinIO (S3)', port: 9000, endpoint: '/minio/health/live', category: 'storage' },
+]
+
+// Use internal Docker hostnames when running in container
+const getInternalHost = (port: number): string => {
+  // Map ports to internal Docker service names
+  const serviceMap: Record<number, string> = {
+    8000: 'backend',
+    8081: 'consent-service',
+    8091: 'voice-service',
+    8086: 'klausur-service',
+    8025: 'mailpit',
+    8088: 'edu-search-service',
+    8092: 'h5p-service',
+    11434: 'ollama',
+    8087: 'embedding-service',
+    5432: 'postgres',
+    6333: 'qdrant',
+    6379: 'valkey',
+    9000: 'minio',
+  }
+
+  // In container, use Docker hostnames; otherwise use localhost
+  const host = process.env.BACKEND_URL ? serviceMap[port] || 'localhost' : 'localhost'
+  return host
+}
+
+async function checkService(service: ServiceConfig): Promise<{
+  name: string
+  port: number
+  category: string
+  status: 'online' | 'offline' | 'degraded'
+  responseTime: number
+  details?: string
+}> {
+  const startTime = Date.now()
+
+  try {
+    // Special handling for PostgreSQL - check via backend
+    if (service.port === 5432) {
+      const backendHost = getInternalHost(8000)
+      const response = await fetch(`http://${backendHost}:8000/api/tests/db-status`, {
+        method: 'GET',
+        signal: AbortSignal.timeout(3000),
+      })
+      const responseTime = Date.now() - startTime
+
+      if (response.ok) {
+        const data = await response.json()
+        return {
+          ...service,
+          status: 'online',
+          responseTime,
+          details: data.host || undefined
+        }
+      }
+      return { ...service, status: 'offline', responseTime }
+    }
+
+    // Special handling for Valkey - check via backend
+    if (service.port === 6379) {
+      const backendHost = getInternalHost(8000)
+      try {
+        const response = await fetch(`http://${backendHost}:8000/api/tests/cache-status`, {
+          method: 'GET',
+          signal: AbortSignal.timeout(3000),
+        })
+        const responseTime = Date.now() - startTime
+
+        if (response.ok) {
+          return { ...service, status: 'online', responseTime }
+        }
+      } catch {
+        // Fallback: assume online if backend is reachable (Valkey is usually bundled)
+      }
+      const responseTime = Date.now() - startTime
+      return { ...service, status: 'online', responseTime, details: 'via Backend' }
+    }
+
+    const host = getInternalHost(service.port)
+    const url = `http://${host}:${service.port}${service.endpoint}`
+
+    const response = await fetch(url, {
+      method: 'GET',
+      signal: AbortSignal.timeout(5000),
+    })
+
+    const responseTime = Date.now() - startTime
+
+    if (response.ok) {
+      // Special handling for Ollama
+      if (service.port === 11434) {
+        try {
+          const data = await response.json()
+          const modelCount = data.models?.length || 0
+          return {
+            ...service,
+            status: 'online',
+            responseTime,
+            details: `${modelCount} Modell${modelCount !== 1 ? 'e' : ''} geladen`
+          }
+        } catch {
+          return { ...service, status: 'online', responseTime }
+        }
+      }
+      return { ...service, status: 'online', responseTime }
+    } else if (response.status >= 500) {
+      return { ...service, status: 'degraded', responseTime, details: `HTTP ${response.status}` }
+    } else {
+      return { ...service, status: 'offline', responseTime }
+    }
+  } catch (error) {
+    const responseTime = Date.now() - startTime
+    return {
+      ...service,
+      status: 'offline',
+      responseTime,
+      details: error instanceof Error ? error.message : 'Verbindungsfehler'
+    }
+  }
+}
+
+export async function GET() {
+  try {
+    const results = await Promise.all(SERVICES.map(checkService))
+
+    return NextResponse.json({
+      services: results,
+      timestamp: new Date().toISOString(),
+      onlineCount: results.filter(s => s.status === 'online').length,
+      totalCount: results.length
+    })
+  } catch (error) {
+    return NextResponse.json(
+      { error: 'Failed to check services', details: error instanceof Error ? error.message : 'Unknown error' },
+      { status: 500 }
+    )
+  }
+}