refactor: remove unused pages and backends (model-management, OCR legacy, GPU/vast.ai, video-chat, matrix)

Deleted pages:
- /ai/model-management (mock data only, no real backend)
- /ai/ocr-compare (old /vocab/ backend, replaced by ocr-kombi)
- /ai/ocr-pipeline (minimal session browser, redundant)
- /ai/ocr-overlay (legacy monolith, redundant)
- /ai/gpu (vast.ai GPU management, no longer used)
- /infrastructure/gpu (same)
- /communication/video-chat (moved to core)
- /communication/matrix (moved to core)

Deleted backends:
- backend-lehrer/infra/vast_client.py + vast_power.py
- backend-lehrer/meetings_api.py + jitsi_api.py
- website/app/api/admin/gpu/
- edu-search-service/scripts/vast_ai_extractor.py

Total: ~7,800 LOC removed. All code preserved in git history.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

admin-lehrer/app/(admin)/communication/matrix/page.tsx

@@ -1,593 +0,0 @@
-'use client'
-
-/**
- * Voice Service Admin Page (migrated from website/admin/voice)
- *
- * Displays:
- * - Voice-First Architecture Overview
- * - Developer Guide Content
- * - Live Voice Demo (embedded from studio-v2)
- * - Task State Machine Documentation
- * - DSGVO Compliance Information
- */
-
-import { useState } from 'react'
-import Link from 'next/link'
-import { PagePurpose } from '@/components/common/PagePurpose'
-
-type TabType = 'overview' | 'demo' | 'tasks' | 'intents' | 'dsgvo' | 'api'
-
-// Task State Machine data
-const TASK_STATES = [
-  { state: 'DRAFT', description: 'Task erstellt, noch nicht verarbeitet', color: 'bg-gray-100 text-gray-800', next: ['QUEUED', 'PAUSED'] },
-  { state: 'QUEUED', description: 'In Warteschlange fuer Verarbeitung', color: 'bg-blue-100 text-blue-800', next: ['RUNNING', 'PAUSED'] },
-  { state: 'RUNNING', description: 'Wird aktuell verarbeitet', color: 'bg-yellow-100 text-yellow-800', next: ['READY', 'PAUSED'] },
-  { state: 'READY', description: 'Fertig, wartet auf User-Bestaetigung', color: 'bg-green-100 text-green-800', next: ['APPROVED', 'REJECTED', 'PAUSED'] },
-  { state: 'APPROVED', description: 'Vom User bestaetigt', color: 'bg-emerald-100 text-emerald-800', next: ['COMPLETED'] },
-  { state: 'REJECTED', description: 'Vom User abgelehnt', color: 'bg-red-100 text-red-800', next: ['DRAFT'] },
-  { state: 'COMPLETED', description: 'Erfolgreich abgeschlossen', color: 'bg-teal-100 text-teal-800', next: [] },
-  { state: 'EXPIRED', description: 'TTL ueberschritten', color: 'bg-orange-100 text-orange-800', next: [] },
-  { state: 'PAUSED', description: 'Vom User pausiert', color: 'bg-purple-100 text-purple-800', next: ['DRAFT', 'QUEUED', 'RUNNING', 'READY'] },
-]
-
-// Intent Types (22 types organized by group)
-const INTENT_GROUPS = [
-  {
-    group: 'Notizen',
-    color: 'bg-blue-50 border-blue-200',
-    intents: [
-      { type: 'student_observation', example: 'Notiz zu Max: heute wiederholt gestoert', description: 'Schuelerbeobachtungen' },
-      { type: 'reminder', example: 'Erinner mich morgen an Konferenz', description: 'Erinnerungen setzen' },
-      { type: 'homework_check', example: '7b Mathe Hausaufgabe kontrollieren', description: 'Hausaufgaben pruefen' },
-      { type: 'conference_topic', example: 'Thema Lehrerkonferenz: iPad-Regeln', description: 'Konferenzthemen' },
-      { type: 'correction_thought', example: 'Aufgabe 3: haeufiger Fehler erklaeren', description: 'Korrekturgedanken' },
-    ]
-  },
-  {
-    group: 'Content-Generierung',
-    color: 'bg-green-50 border-green-200',
-    intents: [
-      { type: 'worksheet_generate', example: 'Erstelle 3 Lueckentexte zu Vokabeln', description: 'Arbeitsblaetter erstellen' },
-      { type: 'quiz_generate', example: '10-Minuten Vokabeltest mit Loesungen', description: 'Quiz/Tests erstellen' },
-      { type: 'quick_activity', example: '10 Minuten Einstieg, 5 Aufgaben', description: 'Schnelle Aktivitaeten' },
-      { type: 'differentiation', example: 'Zwei Schwierigkeitsstufen: Basis und Plus', description: 'Differenzierung' },
-    ]
-  },
-  {
-    group: 'Kommunikation',
-    color: 'bg-yellow-50 border-yellow-200',
-    intents: [
-      { type: 'parent_letter', example: 'Neutraler Elternbrief wegen Stoerungen', description: 'Elternbriefe erstellen' },
-      { type: 'class_message', example: 'Nachricht an 8a: Hausaufgaben bis Mittwoch', description: 'Klassennachrichten' },
-    ]
-  },
-  {
-    group: 'Canvas-Editor',
-    color: 'bg-purple-50 border-purple-200',
-    intents: [
-      { type: 'canvas_edit', example: 'Ueberschriften groesser, Zeilenabstand kleiner', description: 'Formatierung aendern' },
-      { type: 'canvas_layout', example: 'Alles auf eine Seite, Drucklayout A4', description: 'Layout anpassen' },
-      { type: 'canvas_element', example: 'Kasten fuer Merke hinzufuegen', description: 'Elemente hinzufuegen' },
-      { type: 'canvas_image', example: 'Bild 2 nach links, Pfeil auf Aufgabe 3', description: 'Bilder positionieren' },
-    ]
-  },
-  {
-    group: 'RAG & Korrektur',
-    color: 'bg-pink-50 border-pink-200',
-    intents: [
-      { type: 'operator_checklist', example: 'Operatoren-Checkliste fuer diese Aufgabe', description: 'Operatoren abrufen' },
-      { type: 'eh_passage', example: 'Erwartungshorizont-Passage zu diesem Thema', description: 'EH-Passagen suchen' },
-      { type: 'feedback_suggestion', example: 'Kurze Feedbackformulierung vorschlagen', description: 'Feedback vorschlagen' },
-    ]
-  },
-  {
-    group: 'Follow-up (TaskOrchestrator)',
-    color: 'bg-teal-50 border-teal-200',
-    intents: [
-      { type: 'task_summary', example: 'Fasse alle offenen Tasks zusammen', description: 'Task-Uebersicht' },
-      { type: 'convert_note', example: 'Mach aus der Notiz von gestern einen Elternbrief', description: 'Notizen konvertieren' },
-      { type: 'schedule_reminder', example: 'Erinner mich morgen an das Gespraech mit Max', description: 'Erinnerungen planen' },
-    ]
-  },
-]
-
-// DSGVO Data Categories
-const DSGVO_CATEGORIES = [
-  { category: 'Audio', processing: 'NUR transient im RAM, NIEMALS persistiert', storage: 'Keine', ttl: '-', icon: '🎤', risk: 'low' },
-  { category: 'PII (Schuelernamen)', processing: 'NUR auf Lehrergeraet', storage: 'Client-side', ttl: '-', icon: '👤', risk: 'high' },
-  { category: 'Pseudonyme', processing: 'Server erlaubt (student_ref, class_ref)', storage: 'Valkey Cache', ttl: '24h', icon: '🔢', risk: 'low' },
-  { category: 'Transkripte', processing: 'NUR verschluesselt (AES-256-GCM)', storage: 'PostgreSQL', ttl: '7 Tage', icon: '📝', risk: 'medium' },
-  { category: 'Task States', processing: 'TaskOrchestrator', storage: 'Valkey', ttl: '30 Tage', icon: '📋', risk: 'low' },
-  { category: 'Audit Logs', processing: 'Nur truncated IDs, keine PII', storage: 'PostgreSQL', ttl: '90 Tage', icon: '📊', risk: 'low' },
-]
-
-// API Endpoints
-const API_ENDPOINTS = [
-  { method: 'POST', path: '/api/v1/sessions', description: 'Voice Session erstellen' },
-  { method: 'GET', path: '/api/v1/sessions/{id}', description: 'Session Status abrufen' },
-  { method: 'DELETE', path: '/api/v1/sessions/{id}', description: 'Session beenden' },
-  { method: 'GET', path: '/api/v1/sessions/{id}/tasks', description: 'Pending Tasks abrufen' },
-  { method: 'POST', path: '/api/v1/tasks', description: 'Task erstellen' },
-  { method: 'GET', path: '/api/v1/tasks/{id}', description: 'Task Status abrufen' },
-  { method: 'PUT', path: '/api/v1/tasks/{id}/transition', description: 'Task State aendern' },
-  { method: 'DELETE', path: '/api/v1/tasks/{id}', description: 'Task loeschen' },
-  { method: 'WS', path: '/ws/voice', description: 'Voice Streaming (WebSocket)' },
-  { method: 'GET', path: '/health', description: 'Health Check' },
-]
-
-export default function VoiceMatrixPage() {
-  const [activeTab, setActiveTab] = useState<TabType>('overview')
-  const [demoLoaded, setDemoLoaded] = useState(false)
-
-  const tabs = [
-    { id: 'overview', name: 'Architektur', icon: '🏗️' },
-    { id: 'demo', name: 'Live Demo', icon: '🎤' },
-    { id: 'tasks', name: 'Task States', icon: '📋' },
-    { id: 'intents', name: 'Intents (22)', icon: '🎯' },
-    { id: 'dsgvo', name: 'DSGVO', icon: '🔒' },
-    { id: 'api', name: 'API', icon: '🔌' },
-  ]
-
-  return (
-    <div>
-      {/* Page Purpose */}
-      <PagePurpose
-        title="Voice Service"
-        purpose="Voice-First Interface mit PersonaPlex-7B & TaskOrchestrator. Konfigurieren und testen Sie den Voice-Service fuer Lehrer-Interaktionen per Sprache."
-        audience={['Entwickler', 'Admins']}
-        architecture={{
-          services: ['voice-service (Python, Port 8091)', 'studio-v2 (Next.js)', 'valkey (Cache)'],
-          databases: ['PostgreSQL', 'Valkey Cache'],
-        }}
-        relatedPages={[
-          { name: 'Matrix & Jitsi', href: '/communication/matrix', description: 'Kommunikation Monitoring' },
-          { name: 'GPU Infrastruktur', href: '/infrastructure/gpu', description: 'GPU fuer Voice-Service' },
-        ]}
-        collapsible={true}
-        defaultCollapsed={false}
-      />
-
-      {/* Quick Links */}
-      <div className="mb-6 flex flex-wrap gap-3">
-        <a
-          href="https://macmini:3001/voice-test"
-          target="_blank"
-          rel="noopener noreferrer"
-          className="flex items-center gap-2 px-4 py-2 bg-teal-600 text-white rounded-lg hover:bg-teal-700 transition-colors"
-        >
-          <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 11a7 7 0 01-7 7m0 0a7 7 0 01-7-7m7 7v4m0 0H8m4 0h4m-4-8a3 3 0 01-3-3V5a3 3 0 116 0v6a3 3 0 01-3 3z" />
-          </svg>
-          Voice Test (Studio)
-        </a>
-        <a
-          href="https://macmini:8091/health"
-          target="_blank"
-          rel="noopener noreferrer"
-          className="flex items-center gap-2 px-4 py-2 bg-green-100 text-green-700 rounded-lg hover:bg-green-200 transition-colors"
-        >
-          <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z" />
-          </svg>
-          Health Check
-        </a>
-        <Link
-          href="/development/docs"
-          className="flex items-center gap-2 px-4 py-2 bg-slate-100 text-slate-700 rounded-lg hover:bg-slate-200 transition-colors"
-        >
-          <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z" />
-          </svg>
-          Developer Docs
-        </Link>
-      </div>
-
-      {/* Stats Overview */}
-      <div className="grid grid-cols-2 md:grid-cols-6 gap-4 mb-6">
-        <div className="bg-white rounded-lg shadow p-4">
-          <div className="text-3xl font-bold text-teal-600">8091</div>
-          <div className="text-sm text-slate-500">Port</div>
-        </div>
-        <div className="bg-white rounded-lg shadow p-4">
-          <div className="text-3xl font-bold text-blue-600">22</div>
-          <div className="text-sm text-slate-500">Task Types</div>
-        </div>
-        <div className="bg-white rounded-lg shadow p-4">
-          <div className="text-3xl font-bold text-purple-600">9</div>
-          <div className="text-sm text-slate-500">Task States</div>
-        </div>
-        <div className="bg-white rounded-lg shadow p-4">
-          <div className="text-3xl font-bold text-green-600">24kHz</div>
-          <div className="text-sm text-slate-500">Audio Rate</div>
-        </div>
-        <div className="bg-white rounded-lg shadow p-4">
-          <div className="text-3xl font-bold text-orange-600">80ms</div>
-          <div className="text-sm text-slate-500">Frame Size</div>
-        </div>
-        <div className="bg-white rounded-lg shadow p-4">
-          <div className="text-3xl font-bold text-red-600">0</div>
-          <div className="text-sm text-slate-500">Audio Persist</div>
-        </div>
-      </div>
-
-      {/* Tabs */}
-      <div className="bg-white rounded-lg shadow mb-6">
-        <div className="border-b border-slate-200 px-4">
-          <div className="flex gap-1 overflow-x-auto">
-            {tabs.map((tab) => (
-              <button
-                key={tab.id}
-                onClick={() => setActiveTab(tab.id as TabType)}
-                className={`px-4 py-3 text-sm font-medium whitespace-nowrap transition-colors border-b-2 ${
-                  activeTab === tab.id
-                    ? 'border-teal-600 text-teal-600'
-                    : 'border-transparent text-slate-500 hover:text-slate-700'
-                }`}
-              >
-                <span className="mr-2">{tab.icon}</span>
-                {tab.name}
-              </button>
-            ))}
-          </div>
-        </div>
-
-        <div className="p-6">
-          {/* Overview Tab */}
-          {activeTab === 'overview' && (
-            <div className="space-y-6">
-              <h3 className="text-lg font-semibold text-slate-900">Voice-First Architektur</h3>
-
-              {/* Architecture Diagram */}
-              <div className="bg-slate-50 rounded-lg p-6 font-mono text-sm overflow-x-auto">
-                <pre className="text-slate-700">{`
-┌──────────────────────────────────────────────────────────────────┐
-│                    LEHRERGERAET (PWA / App)                       │
-│  ┌────────────────────────────────────────────────────────────┐  │
-│  │ VoiceCapture.tsx │ voice-encryption.ts │ voice-api.ts      │  │
-│  │ Mikrofon         │ AES-256-GCM         │ WebSocket Client  │  │
-│  └────────────────────────────────────────────────────────────┘  │
-└───────────────────────────┬──────────────────────────────────────┘
-                            │ WebSocket (wss://)
-                            ▼
-┌──────────────────────────────────────────────────────────────────┐
-│                    VOICE SERVICE (Port 8091)                      │
-│  ┌────────────────────────────────────────────────────────────┐  │
-│  │ main.py │ streaming.py │ sessions.py │ tasks.py            │  │
-│  └────────────────────────────────────────────────────────────┘  │
-│  ┌────────────────────────────────────────────────────────────┐  │
-│  │ task_orchestrator.py │ intent_router.py │ encryption        │  │
-│  └────────────────────────────────────────────────────────────┘  │
-└───────────────────────────┬──────────────────────────────────────┘
-                            │
-         ┌──────────────────┼──────────────────┐
-         ▼                  ▼                  ▼
-┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐
-│ PersonaPlex-7B  │ │ Ollama Fallback │ │ Valkey Cache    │
-│ (A100 GPU)      │ │ (Mac Mini)      │ │ (Sessions)      │
-└─────────────────┘ └─────────────────┘ └─────────────────┘
-`}</pre>
-              </div>
-
-              {/* Technology Stack */}
-              <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
-                <div className="bg-blue-50 border border-blue-200 rounded-lg p-4">
-                  <h4 className="font-semibold text-blue-800 mb-2">Voice Model (Produktion)</h4>
-                  <p className="text-sm text-blue-700">PersonaPlex-7B (NVIDIA)</p>
-                  <p className="text-xs text-blue-600 mt-1">Full-Duplex Speech-to-Speech</p>
-                  <p className="text-xs text-blue-500">Lizenz: MIT + NVIDIA Open Model</p>
-                </div>
-                <div className="bg-green-50 border border-green-200 rounded-lg p-4">
-                  <h4 className="font-semibold text-green-800 mb-2">Agent Orchestration</h4>
-                  <p className="text-sm text-green-700">TaskOrchestrator</p>
-                  <p className="text-xs text-green-600 mt-1">Task State Machine</p>
-                  <p className="text-xs text-green-500">Lizenz: Proprietary</p>
-                </div>
-                <div className="bg-purple-50 border border-purple-200 rounded-lg p-4">
-                  <h4 className="font-semibold text-purple-800 mb-2">Audio Codec</h4>
-                  <p className="text-sm text-purple-700">Mimi (24kHz, 80ms)</p>
-                  <p className="text-xs text-purple-600 mt-1">Low-Latency Streaming</p>
-                  <p className="text-xs text-purple-500">Lizenz: MIT</p>
-                </div>
-              </div>
-
-              {/* Key Files */}
-              <div>
-                <h4 className="font-semibold text-slate-800 mb-3">Wichtige Dateien</h4>
-                <div className="bg-white border border-slate-200 rounded-lg overflow-hidden">
-                  <table className="min-w-full divide-y divide-slate-200">
-                    <thead className="bg-slate-50">
-                      <tr>
-                        <th className="px-4 py-2 text-left text-xs font-medium text-slate-500 uppercase">Datei</th>
-                        <th className="px-4 py-2 text-left text-xs font-medium text-slate-500 uppercase">Beschreibung</th>
-                      </tr>
-                    </thead>
-                    <tbody className="divide-y divide-slate-200">
-                      <tr><td className="px-4 py-2 font-mono text-sm">voice-service/main.py</td><td className="px-4 py-2 text-sm text-slate-600">FastAPI Entry, WebSocket Handler</td></tr>
-                      <tr><td className="px-4 py-2 font-mono text-sm">voice-service/services/task_orchestrator.py</td><td className="px-4 py-2 text-sm text-slate-600">Task State Machine</td></tr>
-                      <tr><td className="px-4 py-2 font-mono text-sm">voice-service/services/intent_router.py</td><td className="px-4 py-2 text-sm text-slate-600">Intent Detection (22 Types)</td></tr>
-                      <tr><td className="px-4 py-2 font-mono text-sm">voice-service/services/encryption_service.py</td><td className="px-4 py-2 text-sm text-slate-600">Namespace Key Management</td></tr>
-                      <tr><td className="px-4 py-2 font-mono text-sm">studio-v2/components/voice/VoiceCapture.tsx</td><td className="px-4 py-2 text-sm text-slate-600">Frontend Mikrofon + Crypto</td></tr>
-                      <tr><td className="px-4 py-2 font-mono text-sm">studio-v2/lib/voice/voice-encryption.ts</td><td className="px-4 py-2 text-sm text-slate-600">AES-256-GCM Client-side</td></tr>
-                    </tbody>
-                  </table>
-                </div>
-              </div>
-            </div>
-          )}
-
-          {/* Demo Tab */}
-          {activeTab === 'demo' && (
-            <div className="space-y-4">
-              <div className="flex items-center justify-between">
-                <h3 className="text-lg font-semibold text-slate-900">Live Voice Demo</h3>
-                <a
-                  href="https://macmini:3001/voice-test"
-                  target="_blank"
-                  rel="noopener noreferrer"
-                  className="text-sm text-teal-600 hover:text-teal-700 flex items-center gap-1"
-                >
-                  In neuem Tab oeffnen
-                  <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M10 6H6a2 2 0 00-2 2v10a2 2 0 002 2h10a2 2 0 002-2v-4M14 4h6m0 0v6m0-6L10 14" />
-                  </svg>
-                </a>
-              </div>
-
-              <div className="bg-slate-100 rounded-lg p-4 text-sm text-slate-600 mb-4">
-                <p><strong>Hinweis:</strong> Die Demo erfordert, dass der Voice Service (Port 8091) und das Studio-v2 Frontend (Port 3001) laufen.</p>
-                <code className="block mt-2 bg-slate-200 p-2 rounded">docker compose up -d voice-service && cd studio-v2 && npm run dev</code>
-              </div>
-
-              {/* Embedded Demo */}
-              <div className="relative bg-slate-900 rounded-lg overflow-hidden" style={{ height: '600px' }}>
-                {!demoLoaded && (
-                  <div className="absolute inset-0 flex items-center justify-center">
-                    <button
-                      onClick={() => setDemoLoaded(true)}
-                      className="px-6 py-3 bg-teal-600 text-white rounded-lg hover:bg-teal-700 transition-colors flex items-center gap-2"
-                    >
-                      <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M14.752 11.168l-3.197-2.132A1 1 0 0010 9.87v4.263a1 1 0 001.555.832l3.197-2.132a1 1 0 000-1.664z" />
-                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
-                      </svg>
-                      Voice Demo laden
-                    </button>
-                  </div>
-                )}
-                {demoLoaded && (
-                  <iframe
-                    src="https://macmini:3001/voice-test?embed=true"
-                    className="w-full h-full border-0"
-                    title="Voice Demo"
-                    allow="microphone"
-                  />
-                )}
-              </div>
-            </div>
-          )}
-
-          {/* Task States Tab */}
-          {activeTab === 'tasks' && (
-            <div className="space-y-6">
-              <h3 className="text-lg font-semibold text-slate-900">Task State Machine (TaskOrchestrator)</h3>
-
-              {/* State Diagram */}
-              <div className="bg-slate-50 rounded-lg p-6 font-mono text-sm overflow-x-auto">
-                <pre className="text-slate-700">{`
-DRAFT → QUEUED → RUNNING → READY
-                              │
-                  ┌───────────┴───────────┐
-                  │                       │
-              APPROVED                REJECTED
-                  │                       │
-              COMPLETED               DRAFT (revision)
-
-Any State → EXPIRED (TTL)
-Any State → PAUSED (User Interrupt)
-`}</pre>
-              </div>
-
-              {/* States Table */}
-              <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
-                {TASK_STATES.map((state) => (
-                  <div key={state.state} className={`${state.color} rounded-lg p-4`}>
-                    <div className="font-semibold text-lg">{state.state}</div>
-                    <p className="text-sm mt-1">{state.description}</p>
-                    {state.next.length > 0 && (
-                      <div className="mt-2 text-xs">
-                        <span className="opacity-75">Naechste:</span>{' '}
-                        {state.next.join(', ')}
-                      </div>
-                    )}
-                  </div>
-                ))}
-              </div>
-            </div>
-          )}
-
-          {/* Intents Tab */}
-          {activeTab === 'intents' && (
-            <div className="space-y-6">
-              <h3 className="text-lg font-semibold text-slate-900">Intent Types (22 unterstuetzte Typen)</h3>
-
-              {INTENT_GROUPS.map((group) => (
-                <div key={group.group} className={`${group.color} border rounded-lg p-4`}>
-                  <h4 className="font-semibold text-slate-800 mb-3">{group.group}</h4>
-                  <div className="space-y-2">
-                    {group.intents.map((intent) => (
-                      <div key={intent.type} className="bg-white rounded-lg p-3 shadow-sm">
-                        <div className="flex items-start justify-between">
-                          <div>
-                            <code className="text-sm font-mono text-teal-700 bg-teal-50 px-2 py-0.5 rounded">
-                              {intent.type}
-                            </code>
-                            <p className="text-sm text-slate-600 mt-1">{intent.description}</p>
-                          </div>
-                        </div>
-                        <div className="mt-2 text-xs text-slate-500 italic">
-                          Beispiel: &quot;{intent.example}&quot;
-                        </div>
-                      </div>
-                    ))}
-                  </div>
-                </div>
-              ))}
-            </div>
-          )}
-
-          {/* DSGVO Tab */}
-          {activeTab === 'dsgvo' && (
-            <div className="space-y-6">
-              <h3 className="text-lg font-semibold text-slate-900">DSGVO-Compliance</h3>
-
-              {/* Key Principles */}
-              <div className="bg-green-50 border border-green-200 rounded-lg p-4">
-                <h4 className="font-semibold text-green-800 mb-2">Kernprinzipien</h4>
-                <ul className="list-disc list-inside text-sm text-green-700 space-y-1">
-                  <li><strong>Audio NIEMALS persistiert</strong> - Nur transient im RAM</li>
-                  <li><strong>Namespace-Verschluesselung</strong> - Key nur auf Lehrergeraet</li>
-                  <li><strong>Keine Klartext-PII serverseitig</strong> - Nur verschluesselt oder pseudonymisiert</li>
-                  <li><strong>TTL-basierte Auto-Loeschung</strong> - 7/30/90 Tage je nach Kategorie</li>
-                </ul>
-              </div>
-
-              {/* Data Categories Table */}
-              <div className="bg-white border border-slate-200 rounded-lg overflow-hidden">
-                <table className="min-w-full divide-y divide-slate-200">
-                  <thead className="bg-slate-50">
-                    <tr>
-                      <th className="px-4 py-3 text-left text-xs font-medium text-slate-500 uppercase">Kategorie</th>
-                      <th className="px-4 py-3 text-left text-xs font-medium text-slate-500 uppercase">Verarbeitung</th>
-                      <th className="px-4 py-3 text-left text-xs font-medium text-slate-500 uppercase">Speicherort</th>
-                      <th className="px-4 py-3 text-left text-xs font-medium text-slate-500 uppercase">TTL</th>
-                      <th className="px-4 py-3 text-left text-xs font-medium text-slate-500 uppercase">Risiko</th>
-                    </tr>
-                  </thead>
-                  <tbody className="divide-y divide-slate-200">
-                    {DSGVO_CATEGORIES.map((cat) => (
-                      <tr key={cat.category}>
-                        <td className="px-4 py-3">
-                          <span className="mr-2">{cat.icon}</span>
-                          <span className="font-medium">{cat.category}</span>
-                        </td>
-                        <td className="px-4 py-3 text-sm text-slate-600">{cat.processing}</td>
-                        <td className="px-4 py-3 text-sm text-slate-600">{cat.storage}</td>
-                        <td className="px-4 py-3 text-sm text-slate-600">{cat.ttl}</td>
-                        <td className="px-4 py-3">
-                          <span className={`px-2 py-1 rounded text-xs font-medium ${
-                            cat.risk === 'low' ? 'bg-green-100 text-green-700' :
-                            cat.risk === 'medium' ? 'bg-yellow-100 text-yellow-700' :
-                            'bg-red-100 text-red-700'
-                          }`}>
-                            {cat.risk.toUpperCase()}
-                          </span>
-                        </td>
-                      </tr>
-                    ))}
-                  </tbody>
-                </table>
-              </div>
-
-              {/* Audit Log Info */}
-              <div className="bg-slate-50 border border-slate-200 rounded-lg p-4">
-                <h4 className="font-semibold text-slate-800 mb-2">Audit Logs (ohne PII)</h4>
-                <div className="grid grid-cols-2 gap-4 text-sm">
-                  <div>
-                    <span className="text-green-600 font-medium">Erlaubt:</span>
-                    <ul className="list-disc list-inside text-slate-600 mt-1">
-                      <li>ref_id (truncated)</li>
-                      <li>content_type</li>
-                      <li>size_bytes</li>
-                      <li>ttl_hours</li>
-                    </ul>
-                  </div>
-                  <div>
-                    <span className="text-red-600 font-medium">Verboten:</span>
-                    <ul className="list-disc list-inside text-slate-600 mt-1">
-                      <li>user_name</li>
-                      <li>content / transcript</li>
-                      <li>email</li>
-                      <li>student_name</li>
-                    </ul>
-                  </div>
-                </div>
-              </div>
-            </div>
-          )}
-
-          {/* API Tab */}
-          {activeTab === 'api' && (
-            <div className="space-y-6">
-              <h3 className="text-lg font-semibold text-slate-900">Voice Service API (Port 8091)</h3>
-
-              {/* REST Endpoints */}
-              <div className="bg-white border border-slate-200 rounded-lg overflow-hidden">
-                <table className="min-w-full divide-y divide-slate-200">
-                  <thead className="bg-slate-50">
-                    <tr>
-                      <th className="px-4 py-3 text-left text-xs font-medium text-slate-500 uppercase">Methode</th>
-                      <th className="px-4 py-3 text-left text-xs font-medium text-slate-500 uppercase">Endpoint</th>
-                      <th className="px-4 py-3 text-left text-xs font-medium text-slate-500 uppercase">Beschreibung</th>
-                    </tr>
-                  </thead>
-                  <tbody className="divide-y divide-slate-200">
-                    {API_ENDPOINTS.map((ep, idx) => (
-                      <tr key={idx}>
-                        <td className="px-4 py-3">
-                          <span className={`px-2 py-1 rounded text-xs font-medium ${
-                            ep.method === 'GET' ? 'bg-green-100 text-green-700' :
-                            ep.method === 'POST' ? 'bg-blue-100 text-blue-700' :
-                            ep.method === 'PUT' ? 'bg-yellow-100 text-yellow-700' :
-                            ep.method === 'DELETE' ? 'bg-red-100 text-red-700' :
-                            'bg-purple-100 text-purple-700'
-                          }`}>
-                            {ep.method}
-                          </span>
-                        </td>
-                        <td className="px-4 py-3 font-mono text-sm">{ep.path}</td>
-                        <td className="px-4 py-3 text-sm text-slate-600">{ep.description}</td>
-                      </tr>
-                    ))}
-                  </tbody>
-                </table>
-              </div>
-
-              {/* WebSocket Protocol */}
-              <div className="bg-slate-50 rounded-lg p-4">
-                <h4 className="font-semibold text-slate-800 mb-3">WebSocket Protocol</h4>
-                <div className="grid grid-cols-1 md:grid-cols-2 gap-4 text-sm">
-                  <div className="bg-white rounded-lg p-3 border border-slate-200">
-                    <div className="font-medium text-slate-700 mb-2">Client → Server</div>
-                    <ul className="list-disc list-inside text-slate-600 space-y-1">
-                      <li><code className="bg-slate-100 px-1 rounded">Binary</code>: Int16 PCM Audio (24kHz, 80ms)</li>
-                      <li><code className="bg-slate-100 px-1 rounded">JSON</code>: {`{type: "config|end_turn|interrupt"}`}</li>
-                    </ul>
-                  </div>
-                  <div className="bg-white rounded-lg p-3 border border-slate-200">
-                    <div className="font-medium text-slate-700 mb-2">Server → Client</div>
-                    <ul className="list-disc list-inside text-slate-600 space-y-1">
-                      <li><code className="bg-slate-100 px-1 rounded">Binary</code>: Audio Response (base64)</li>
-                      <li><code className="bg-slate-100 px-1 rounded">JSON</code>: {`{type: "transcript|intent|status|error"}`}</li>
-                    </ul>
-                  </div>
-                </div>
-              </div>
-
-              {/* Example curl commands */}
-              <div className="bg-slate-900 rounded-lg p-4 text-sm">
-                <h4 className="font-semibold text-slate-300 mb-3">Beispiel: Session erstellen</h4>
-                <pre className="text-green-400 overflow-x-auto">{`curl -X POST https://macmini:8091/api/v1/sessions \\
-  -H "Content-Type: application/json" \\
-  -d '{
-    "namespace_id": "ns-12345678abcdef12345678abcdef12",
-    "key_hash": "sha256:dGVzdGtleWhhc2h0ZXN0a2V5aGFzaHRlc3Q=",
-    "device_type": "pwa"
-  }'`}</pre>
-              </div>
-            </div>
-          )}
-        </div>
-      </div>
-    </div>
-  )
-}

admin-lehrer/app/(admin)/communication/video-chat/page.tsx

@@ -1,635 +0,0 @@
-'use client'
-
-/**
- * Video & Chat Admin Page
- *
- * Matrix & Jitsi Monitoring Dashboard
- * Provides system statistics, active calls, user metrics, and service health
- * Migrated from website/app/admin/communication
- */
-
-import { useEffect, useState, useCallback } from 'react'
-import Link from 'next/link'
-import { PagePurpose } from '@/components/common/PagePurpose'
-import { getModuleByHref } from '@/lib/navigation'
-
-interface MatrixStats {
-  total_users: number
-  active_users: number
-  total_rooms: number
-  active_rooms: number
-  messages_today: number
-  messages_this_week: number
-  status: 'online' | 'offline' | 'degraded'
-}
-
-interface JitsiStats {
-  active_meetings: number
-  total_participants: number
-  meetings_today: number
-  average_duration_minutes: number
-  peak_concurrent_users: number
-  total_minutes_today: number
-  status: 'online' | 'offline' | 'degraded'
-}
-
-interface TrafficStats {
-  matrix: {
-    bandwidth_in_mb: number
-    bandwidth_out_mb: number
-    messages_per_minute: number
-    media_uploads_today: number
-    media_size_mb: number
-  }
-  jitsi: {
-    bandwidth_in_mb: number
-    bandwidth_out_mb: number
-    video_streams_active: number
-    audio_streams_active: number
-    estimated_hourly_gb: number
-  }
-  total: {
-    bandwidth_in_mb: number
-    bandwidth_out_mb: number
-    estimated_monthly_gb: number
-  }
-}
-
-interface CommunicationStats {
-  matrix: MatrixStats
-  jitsi: JitsiStats
-  traffic?: TrafficStats
-  last_updated: string
-}
-
-interface ActiveMeeting {
-  room_name: string
-  display_name: string
-  participants: number
-  started_at: string
-  duration_minutes: number
-}
-
-interface RecentRoom {
-  room_id: string
-  name: string
-  member_count: number
-  last_activity: string
-  room_type: 'class' | 'parent' | 'staff' | 'general'
-}
-
-export default function VideoChatPage() {
-  const [stats, setStats] = useState<CommunicationStats | null>(null)
-  const [activeMeetings, setActiveMeetings] = useState<ActiveMeeting[]>([])
-  const [recentRooms, setRecentRooms] = useState<RecentRoom[]>([])
-  const [loading, setLoading] = useState(true)
-  const [error, setError] = useState<string | null>(null)
-
-  const moduleInfo = getModuleByHref('/communication/video-chat')
-
-  // Use local API proxy
-  const fetchStats = useCallback(async () => {
-    try {
-      const response = await fetch('/api/admin/communication/stats')
-      if (!response.ok) {
-        throw new Error(`HTTP ${response.status}`)
-      }
-      const data = await response.json()
-      setStats(data)
-      setActiveMeetings(data.active_meetings || [])
-      setRecentRooms(data.recent_rooms || [])
-      setError(null)
-    } catch (err) {
-      setError(err instanceof Error ? err.message : 'Verbindungsfehler')
-      // Set mock data for display purposes when API unavailable
-      setStats({
-        matrix: {
-          total_users: 0,
-          active_users: 0,
-          total_rooms: 0,
-          active_rooms: 0,
-          messages_today: 0,
-          messages_this_week: 0,
-          status: 'offline'
-        },
-        jitsi: {
-          active_meetings: 0,
-          total_participants: 0,
-          meetings_today: 0,
-          average_duration_minutes: 0,
-          peak_concurrent_users: 0,
-          total_minutes_today: 0,
-          status: 'offline'
-        },
-        last_updated: new Date().toISOString()
-      })
-    } finally {
-      setLoading(false)
-    }
-  }, [])
-
-  useEffect(() => {
-    fetchStats()
-  }, [fetchStats])
-
-  // Auto-refresh every 15 seconds
-  useEffect(() => {
-    const interval = setInterval(fetchStats, 15000)
-    return () => clearInterval(interval)
-  }, [fetchStats])
-
-  const getStatusBadge = (status: string) => {
-    const baseClasses = 'px-3 py-1 rounded-full text-xs font-semibold uppercase'
-    switch (status) {
-      case 'online':
-        return `${baseClasses} bg-green-100 text-green-800`
-      case 'degraded':
-        return `${baseClasses} bg-yellow-100 text-yellow-800`
-      case 'offline':
-        return `${baseClasses} bg-red-100 text-red-800`
-      default:
-        return `${baseClasses} bg-slate-100 text-slate-600`
-    }
-  }
-
-  const getRoomTypeBadge = (type: string) => {
-    const baseClasses = 'px-2 py-0.5 rounded text-xs font-medium'
-    switch (type) {
-      case 'class':
-        return `${baseClasses} bg-blue-100 text-blue-700`
-      case 'parent':
-        return `${baseClasses} bg-purple-100 text-purple-700`
-      case 'staff':
-        return `${baseClasses} bg-orange-100 text-orange-700`
-      default:
-        return `${baseClasses} bg-slate-100 text-slate-600`
-    }
-  }
-
-  const formatDuration = (minutes: number) => {
-    if (minutes < 60) return `${Math.round(minutes)} Min.`
-    const hours = Math.floor(minutes / 60)
-    const mins = Math.round(minutes % 60)
-    return `${hours}h ${mins}m`
-  }
-
-  const formatTimeAgo = (dateStr: string) => {
-    const date = new Date(dateStr)
-    const now = new Date()
-    const diffMs = now.getTime() - date.getTime()
-    const diffMins = Math.floor(diffMs / 60000)
-
-    if (diffMins < 1) return 'gerade eben'
-    if (diffMins < 60) return `vor ${diffMins} Min.`
-    if (diffMins < 1440) return `vor ${Math.floor(diffMins / 60)} Std.`
-    return `vor ${Math.floor(diffMins / 1440)} Tagen`
-  }
-
-  // Traffic estimation helpers for SysEleven planning
-  const calculateEstimatedTraffic = (direction: 'in' | 'out'): number => {
-    const messages = stats?.matrix?.messages_today || 0
-    const callMinutes = stats?.jitsi?.total_minutes_today || 0
-    const participants = stats?.jitsi?.total_participants || 0
-
-    const messageTrafficMB = messages * 0.002
-    const videoTrafficMB = callMinutes * participants * 0.011
-
-    if (direction === 'in') {
-      return messageTrafficMB * 0.3 + videoTrafficMB * 0.4
-    }
-    return messageTrafficMB * 0.7 + videoTrafficMB * 0.6
-  }
-
-  const calculateHourlyEstimate = (): number => {
-    const activeParticipants = stats?.jitsi?.total_participants || 0
-    return activeParticipants * 0.675
-  }
-
-  const calculateMonthlyEstimate = (): number => {
-    const dailyCallMinutes = stats?.jitsi?.total_minutes_today || 0
-    const avgParticipants = stats?.jitsi?.peak_concurrent_users || 1
-    const monthlyMinutes = dailyCallMinutes * 22
-    return (monthlyMinutes * avgParticipants * 11) / 1024
-  }
-
-  const getResourceRecommendation = (): string => {
-    const peakUsers = stats?.jitsi?.peak_concurrent_users || 0
-    const monthlyGB = calculateMonthlyEstimate()
-
-    if (monthlyGB < 10 || peakUsers < 5) {
-      return 'Starter (1 vCPU, 2GB RAM, 100GB Traffic)'
-    } else if (monthlyGB < 50 || peakUsers < 20) {
-      return 'Standard (2 vCPU, 4GB RAM, 500GB Traffic)'
-    } else if (monthlyGB < 200 || peakUsers < 50) {
-      return 'Professional (4 vCPU, 8GB RAM, 2TB Traffic)'
-    } else {
-      return 'Enterprise (8+ vCPU, 16GB+ RAM, Unlimited Traffic)'
-    }
-  }
-
-  return (
-    <div>
-      {/* Page Purpose */}
-      <PagePurpose
-        title={moduleInfo?.module.name || 'Video & Chat'}
-        purpose={moduleInfo?.module.purpose || 'Matrix & Jitsi Monitoring Dashboard'}
-        audience={moduleInfo?.module.audience || ['Admins', 'DevOps']}
-        architecture={{
-          services: ['synapse (Matrix)', 'jitsi-meet', 'prosody', 'jvb'],
-          databases: ['PostgreSQL', 'synapse-db'],
-        }}
-        collapsible={true}
-        defaultCollapsed={true}
-      />
-
-      {/* Quick Actions */}
-      <div className="flex gap-3 mb-6">
-        <Link
-          href="/communication/video-chat/wizard"
-          className="px-4 py-2 bg-green-600 text-white rounded-lg hover:bg-green-700 transition-colors text-sm font-medium"
-        >
-          Test Wizard starten
-        </Link>
-        <button
-          onClick={fetchStats}
-          disabled={loading}
-          className="px-4 py-2 border border-slate-300 rounded-lg hover:bg-slate-50 disabled:opacity-50 text-sm"
-        >
-          {loading ? 'Lade...' : 'Aktualisieren'}
-        </button>
-      </div>
-
-      {/* Service Status Overview */}
-      <div className="grid grid-cols-1 md:grid-cols-2 gap-6 mb-6">
-        {/* Matrix Status Card */}
-        <div className="bg-white rounded-xl border border-slate-200 p-6">
-          <div className="flex items-center justify-between mb-4">
-            <div className="flex items-center gap-3">
-              <div className="w-10 h-10 bg-purple-100 rounded-lg flex items-center justify-center">
-                <svg className="w-6 h-6 text-purple-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M8 12h.01M12 12h.01M16 12h.01M21 12c0 4.418-4.03 8-9 8a9.863 9.863 0 01-4.255-.949L3 20l1.395-3.72C3.512 15.042 3 13.574 3 12c0-4.418 4.03-8 9-8s9 3.582 9 8z" />
-                </svg>
-              </div>
-              <div>
-                <h3 className="font-semibold text-slate-900">Matrix (Synapse)</h3>
-                <p className="text-sm text-slate-500">E2EE Messaging</p>
-              </div>
-            </div>
-            <span className={getStatusBadge(stats?.matrix.status || 'offline')}>
-              {stats?.matrix.status || 'offline'}
-            </span>
-          </div>
-          <div className="grid grid-cols-3 gap-4">
-            <div>
-              <div className="text-2xl font-bold text-slate-900">{stats?.matrix.total_users || 0}</div>
-              <div className="text-xs text-slate-500">Benutzer</div>
-            </div>
-            <div>
-              <div className="text-2xl font-bold text-slate-900">{stats?.matrix.active_users || 0}</div>
-              <div className="text-xs text-slate-500">Aktiv</div>
-            </div>
-            <div>
-              <div className="text-2xl font-bold text-slate-900">{stats?.matrix.total_rooms || 0}</div>
-              <div className="text-xs text-slate-500">Raeume</div>
-            </div>
-          </div>
-          <div className="mt-4 pt-4 border-t border-slate-100">
-            <div className="flex justify-between text-sm">
-              <span className="text-slate-500">Nachrichten heute</span>
-              <span className="font-medium">{stats?.matrix.messages_today || 0}</span>
-            </div>
-            <div className="flex justify-between text-sm mt-1">
-              <span className="text-slate-500">Diese Woche</span>
-              <span className="font-medium">{stats?.matrix.messages_this_week || 0}</span>
-            </div>
-          </div>
-        </div>
-
-        {/* Jitsi Status Card */}
-        <div className="bg-white rounded-xl border border-slate-200 p-6">
-          <div className="flex items-center justify-between mb-4">
-            <div className="flex items-center gap-3">
-              <div className="w-10 h-10 bg-blue-100 rounded-lg flex items-center justify-center">
-                <svg className="w-6 h-6 text-blue-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 10l4.553-2.276A1 1 0 0121 8.618v6.764a1 1 0 01-1.447.894L15 14M5 18h8a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v8a2 2 0 002 2z" />
-                </svg>
-              </div>
-              <div>
-                <h3 className="font-semibold text-slate-900">Jitsi Meet</h3>
-                <p className="text-sm text-slate-500">Videokonferenzen</p>
-              </div>
-            </div>
-            <span className={getStatusBadge(stats?.jitsi.status || 'offline')}>
-              {stats?.jitsi.status || 'offline'}
-            </span>
-          </div>
-          <div className="grid grid-cols-3 gap-4">
-            <div>
-              <div className="text-2xl font-bold text-green-600">{stats?.jitsi.active_meetings || 0}</div>
-              <div className="text-xs text-slate-500">Live Calls</div>
-            </div>
-            <div>
-              <div className="text-2xl font-bold text-slate-900">{stats?.jitsi.total_participants || 0}</div>
-              <div className="text-xs text-slate-500">Teilnehmer</div>
-            </div>
-            <div>
-              <div className="text-2xl font-bold text-slate-900">{stats?.jitsi.meetings_today || 0}</div>
-              <div className="text-xs text-slate-500">Calls heute</div>
-            </div>
-          </div>
-          <div className="mt-4 pt-4 border-t border-slate-100">
-            <div className="flex justify-between text-sm">
-              <span className="text-slate-500">Durchschnittliche Dauer</span>
-              <span className="font-medium">{formatDuration(stats?.jitsi.average_duration_minutes || 0)}</span>
-            </div>
-            <div className="flex justify-between text-sm mt-1">
-              <span className="text-slate-500">Peak gleichzeitig</span>
-              <span className="font-medium">{stats?.jitsi.peak_concurrent_users || 0} Nutzer</span>
-            </div>
-          </div>
-        </div>
-      </div>
-
-      {/* Traffic & Bandwidth Statistics */}
-      <div className="bg-white rounded-xl border border-slate-200 p-6 mb-6">
-        <div className="flex items-center justify-between mb-4">
-          <div className="flex items-center gap-3">
-            <div className="w-10 h-10 bg-emerald-100 rounded-lg flex items-center justify-center">
-              <svg className="w-6 h-6 text-emerald-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M13 7h8m0 0v8m0-8l-8 8-4-4-6 6" />
-              </svg>
-            </div>
-            <div>
-              <h3 className="font-semibold text-slate-900">Traffic & Bandbreite</h3>
-              <p className="text-sm text-slate-500">SysEleven Ressourcenplanung</p>
-            </div>
-          </div>
-          <span className="px-3 py-1 rounded-full text-xs font-semibold uppercase bg-emerald-100 text-emerald-800">
-            Live
-          </span>
-        </div>
-
-        <div className="grid grid-cols-2 md:grid-cols-4 gap-4 mb-4">
-          <div className="bg-slate-50 rounded-lg p-4">
-            <div className="text-xs text-slate-500 mb-1">Eingehend (heute)</div>
-            <div className="text-2xl font-bold text-slate-900">
-              {stats?.traffic?.total?.bandwidth_in_mb?.toFixed(1) || calculateEstimatedTraffic('in').toFixed(1)} MB
-            </div>
-          </div>
-          <div className="bg-slate-50 rounded-lg p-4">
-            <div className="text-xs text-slate-500 mb-1">Ausgehend (heute)</div>
-            <div className="text-2xl font-bold text-slate-900">
-              {stats?.traffic?.total?.bandwidth_out_mb?.toFixed(1) || calculateEstimatedTraffic('out').toFixed(1)} MB
-            </div>
-          </div>
-          <div className="bg-slate-50 rounded-lg p-4">
-            <div className="text-xs text-slate-500 mb-1">Geschaetzt/Stunde</div>
-            <div className="text-2xl font-bold text-blue-600">
-              {stats?.traffic?.jitsi?.estimated_hourly_gb?.toFixed(2) || calculateHourlyEstimate().toFixed(2)} GB
-            </div>
-          </div>
-          <div className="bg-slate-50 rounded-lg p-4">
-            <div className="text-xs text-slate-500 mb-1">Geschaetzt/Monat</div>
-            <div className="text-2xl font-bold text-emerald-600">
-              {stats?.traffic?.total?.estimated_monthly_gb?.toFixed(1) || calculateMonthlyEstimate().toFixed(1)} GB
-            </div>
-          </div>
-        </div>
-
-        <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
-          {/* Matrix Traffic */}
-          <div className="border border-slate-200 rounded-lg p-4">
-            <div className="flex items-center gap-2 mb-3">
-              <div className="w-3 h-3 bg-purple-500 rounded-full"></div>
-              <span className="text-sm font-medium text-slate-700">Matrix Messaging</span>
-            </div>
-            <div className="space-y-2 text-sm">
-              <div className="flex justify-between">
-                <span className="text-slate-500">Nachrichten/Min</span>
-                <span className="font-medium">{stats?.traffic?.matrix?.messages_per_minute || Math.round((stats?.matrix?.messages_today || 0) / (new Date().getHours() || 1) / 60)}</span>
-              </div>
-              <div className="flex justify-between">
-                <span className="text-slate-500">Media Uploads heute</span>
-                <span className="font-medium">{stats?.traffic?.matrix?.media_uploads_today || 0}</span>
-              </div>
-              <div className="flex justify-between">
-                <span className="text-slate-500">Media Groesse</span>
-                <span className="font-medium">{stats?.traffic?.matrix?.media_size_mb?.toFixed(1) || '0.0'} MB</span>
-              </div>
-            </div>
-          </div>
-
-          {/* Jitsi Traffic */}
-          <div className="border border-slate-200 rounded-lg p-4">
-            <div className="flex items-center gap-2 mb-3">
-              <div className="w-3 h-3 bg-blue-500 rounded-full"></div>
-              <span className="text-sm font-medium text-slate-700">Jitsi Video</span>
-            </div>
-            <div className="space-y-2 text-sm">
-              <div className="flex justify-between">
-                <span className="text-slate-500">Video Streams aktiv</span>
-                <span className="font-medium">{stats?.traffic?.jitsi?.video_streams_active || (stats?.jitsi?.total_participants || 0)}</span>
-              </div>
-              <div className="flex justify-between">
-                <span className="text-slate-500">Audio Streams aktiv</span>
-                <span className="font-medium">{stats?.traffic?.jitsi?.audio_streams_active || (stats?.jitsi?.total_participants || 0)}</span>
-              </div>
-              <div className="flex justify-between">
-                <span className="text-slate-500">Bitrate geschaetzt</span>
-                <span className="font-medium">{((stats?.jitsi?.total_participants || 0) * 1.5).toFixed(1)} Mbps</span>
-              </div>
-            </div>
-          </div>
-        </div>
-
-        {/* SysEleven Recommendation */}
-        <div className="mt-4 p-4 bg-emerald-50 border border-emerald-200 rounded-lg">
-          <h4 className="text-sm font-semibold text-emerald-800 mb-2">SysEleven Empfehlung</h4>
-          <div className="text-sm text-emerald-700">
-            <p>Basierend auf aktuellem Traffic: <strong>{getResourceRecommendation()}</strong></p>
-            <p className="mt-1 text-xs text-emerald-600">
-              Peak Teilnehmer: {stats?.jitsi?.peak_concurrent_users || 0} |
-              Durchschnittliche Call-Dauer: {stats?.jitsi?.average_duration_minutes?.toFixed(0) || 0} Min. |
-              Calls heute: {stats?.jitsi?.meetings_today || 0}
-            </p>
-          </div>
-        </div>
-      </div>
-
-      {/* Active Meetings */}
-      <div className="bg-white rounded-xl border border-slate-200 p-6 mb-6">
-        <div className="flex items-center justify-between mb-4">
-          <h3 className="font-semibold text-slate-900">Aktive Meetings</h3>
-        </div>
-
-        {activeMeetings.length === 0 ? (
-          <div className="text-center py-8 text-slate-500">
-            <svg className="w-12 h-12 mx-auto mb-3 text-slate-300" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 10l4.553-2.276A1 1 0 0121 8.618v6.764a1 1 0 01-1.447.894L15 14M5 18h8a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v8a2 2 0 002 2z" />
-            </svg>
-            <p>Keine aktiven Meetings</p>
-          </div>
-        ) : (
-          <div className="overflow-x-auto">
-            <table className="w-full">
-              <thead>
-                <tr className="text-left text-xs text-slate-500 uppercase border-b border-slate-200">
-                  <th className="pb-3 pr-4">Meeting</th>
-                  <th className="pb-3 pr-4">Teilnehmer</th>
-                  <th className="pb-3 pr-4">Gestartet</th>
-                  <th className="pb-3">Dauer</th>
-                </tr>
-              </thead>
-              <tbody className="divide-y divide-slate-100">
-                {activeMeetings.map((meeting, idx) => (
-                  <tr key={idx} className="text-sm">
-                    <td className="py-3 pr-4">
-                      <div className="font-medium text-slate-900">{meeting.display_name}</div>
-                      <div className="text-xs text-slate-500">{meeting.room_name}</div>
-                    </td>
-                    <td className="py-3 pr-4">
-                      <span className="inline-flex items-center gap-1">
-                        <span className="w-2 h-2 bg-green-500 rounded-full animate-pulse" />
-                        {meeting.participants}
-                      </span>
-                    </td>
-                    <td className="py-3 pr-4 text-slate-500">{formatTimeAgo(meeting.started_at)}</td>
-                    <td className="py-3 font-medium">{formatDuration(meeting.duration_minutes)}</td>
-                  </tr>
-                ))}
-              </tbody>
-            </table>
-          </div>
-        )}
-      </div>
-
-      {/* Recent Chat Rooms & Usage Stats */}
-      <div className="grid grid-cols-1 lg:grid-cols-2 gap-6 mb-6">
-        <div className="bg-white rounded-xl border border-slate-200 p-6">
-          <h3 className="font-semibold text-slate-900 mb-4">Aktive Chat-Raeume</h3>
-
-          {recentRooms.length === 0 ? (
-            <div className="text-center py-6 text-slate-500">
-              <p>Keine aktiven Raeume</p>
-            </div>
-          ) : (
-            <div className="space-y-3">
-              {recentRooms.slice(0, 5).map((room, idx) => (
-                <div key={idx} className="flex items-center justify-between p-3 bg-slate-50 rounded-lg">
-                  <div className="flex items-center gap-3">
-                    <div className="w-8 h-8 bg-slate-200 rounded-lg flex items-center justify-center">
-                      <svg className="w-4 h-4 text-slate-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M17 20h5v-2a3 3 0 00-5.356-1.857M17 20H7m10 0v-2c0-.656-.126-1.283-.356-1.857M7 20H2v-2a3 3 0 015.356-1.857M7 20v-2c0-.656.126-1.283.356-1.857m0 0a5.002 5.002 0 019.288 0M15 7a3 3 0 11-6 0 3 3 0 016 0z" />
-                      </svg>
-                    </div>
-                    <div>
-                      <div className="font-medium text-slate-900 text-sm">{room.name}</div>
-                      <div className="text-xs text-slate-500">{room.member_count} Mitglieder</div>
-                    </div>
-                  </div>
-                  <div className="flex items-center gap-2">
-                    <span className={getRoomTypeBadge(room.room_type)}>{room.room_type}</span>
-                    <span className="text-xs text-slate-400">{formatTimeAgo(room.last_activity)}</span>
-                  </div>
-                </div>
-              ))}
-            </div>
-          )}
-        </div>
-
-        {/* Usage Statistics */}
-        <div className="bg-white rounded-xl border border-slate-200 p-6">
-          <h3 className="font-semibold text-slate-900 mb-4">Nutzungsstatistiken</h3>
-          <div className="space-y-4">
-            <div>
-              <div className="flex justify-between text-sm mb-1">
-                <span className="text-slate-600">Call-Minuten heute</span>
-                <span className="font-semibold">{stats?.jitsi.total_minutes_today || 0} Min.</span>
-              </div>
-              <div className="w-full bg-slate-100 rounded-full h-2">
-                <div
-                  className="bg-blue-600 h-2 rounded-full transition-all"
-                  style={{ width: `${Math.min((stats?.jitsi.total_minutes_today || 0) / 500 * 100, 100)}%` }}
-                />
-              </div>
-            </div>
-            <div>
-              <div className="flex justify-between text-sm mb-1">
-                <span className="text-slate-600">Aktive Chat-Raeume</span>
-                <span className="font-semibold">{stats?.matrix.active_rooms || 0} / {stats?.matrix.total_rooms || 0}</span>
-              </div>
-              <div className="w-full bg-slate-100 rounded-full h-2">
-                <div
-                  className="bg-purple-600 h-2 rounded-full transition-all"
-                  style={{ width: `${stats?.matrix.total_rooms ? ((stats.matrix.active_rooms / stats.matrix.total_rooms) * 100) : 0}%` }}
-                />
-              </div>
-            </div>
-            <div>
-              <div className="flex justify-between text-sm mb-1">
-                <span className="text-slate-600">Aktive Nutzer</span>
-                <span className="font-semibold">{stats?.matrix.active_users || 0} / {stats?.matrix.total_users || 0}</span>
-              </div>
-              <div className="w-full bg-slate-100 rounded-full h-2">
-                <div
-                  className="bg-green-600 h-2 rounded-full transition-all"
-                  style={{ width: `${stats?.matrix.total_users ? ((stats.matrix.active_users / stats.matrix.total_users) * 100) : 0}%` }}
-                />
-              </div>
-            </div>
-          </div>
-
-          {/* Quick Actions */}
-          <div className="mt-6 pt-4 border-t border-slate-100">
-            <h4 className="text-sm font-medium text-slate-700 mb-3">Schnellaktionen</h4>
-            <div className="flex flex-wrap gap-2">
-              <a
-                href="http://localhost:8448/_synapse/admin"
-                target="_blank"
-                rel="noopener noreferrer"
-                className="px-3 py-1.5 text-sm bg-purple-100 text-purple-700 rounded-lg hover:bg-purple-200 transition-colors"
-              >
-                Synapse Admin
-              </a>
-              <a
-                href="http://localhost:8443"
-                target="_blank"
-                rel="noopener noreferrer"
-                className="px-3 py-1.5 text-sm bg-blue-100 text-blue-700 rounded-lg hover:bg-blue-200 transition-colors"
-              >
-                Jitsi Meet
-              </a>
-            </div>
-          </div>
-        </div>
-      </div>
-
-      {/* Connection Info */}
-      <div className="bg-blue-50 border border-blue-200 rounded-xl p-4">
-        <div className="flex gap-3">
-          <svg className="w-5 h-5 text-blue-600 flex-shrink-0 mt-0.5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
-          </svg>
-          <div>
-            <h4 className="font-semibold text-blue-900">Service Konfiguration</h4>
-            <p className="text-sm text-blue-800 mt-1">
-              <strong>Matrix Homeserver:</strong> http://localhost:8448 (Synapse)<br />
-              <strong>Jitsi Meet:</strong> http://localhost:8443<br />
-              <strong>Auto-Refresh:</strong> Alle 15 Sekunden
-            </p>
-            {error && (
-              <p className="text-sm text-red-600 mt-2">
-                <strong>Fehler:</strong> {error} - Backend nicht erreichbar
-              </p>
-            )}
-            {stats?.last_updated && (
-              <p className="text-xs text-blue-600 mt-2">
-                Letzte Aktualisierung: {new Date(stats.last_updated).toLocaleString('de-DE')}
-              </p>
-            )}
-          </div>
-        </div>
-      </div>
-    </div>
-  )
-}

admin-lehrer/app/(admin)/communication/video-chat/wizard/page.tsx

@@ -1,366 +0,0 @@
-'use client'
-
-/**
- * Video & Chat Wizard Page
- *
- * Interactive learning and testing wizard for Matrix & Jitsi integration
- * Migrated from website/app/admin/communication/wizard
- */
-
-import { useState } from 'react'
-import Link from 'next/link'
-import {
-  WizardStepper,
-  WizardNavigation,
-  EducationCard,
-  ArchitectureContext,
-  TestRunner,
-  TestSummary,
-  type WizardStep,
-  type TestCategoryResult,
-  type FullTestResults,
-  type EducationContent,
-  type ArchitectureContextType,
-} from '@/components/wizard'
-
-// ==============================================
-// Constants
-// ==============================================
-
-const BACKEND_URL = process.env.NEXT_PUBLIC_BACKEND_URL || 'http://localhost:8000'
-
-const STEPS: WizardStep[] = [
-  { id: 'welcome', name: 'Willkommen', icon: '👋', status: 'pending' },
-  { id: 'api-health', name: 'API Status', icon: '💚', status: 'pending', category: 'api-health' },
-  { id: 'matrix', name: 'Matrix', icon: '💬', status: 'pending', category: 'matrix' },
-  { id: 'jitsi', name: 'Jitsi', icon: '📹', status: 'pending', category: 'jitsi' },
-  { id: 'summary', name: 'Zusammenfassung', icon: '📊', status: 'pending' },
-]
-
-const EDUCATION_CONTENT: Record<string, EducationContent> = {
-  'welcome': {
-    title: 'Willkommen zum Video & Chat Wizard',
-    content: [
-      'Sichere Kommunikation ist das Rueckgrat moderner Bildungsplattformen.',
-      '',
-      'BreakPilot nutzt zwei Open-Source Systeme:',
-      '• Matrix Synapse: Dezentraler Messenger (Ende-zu-Ende verschluesselt)',
-      '• Jitsi Meet: Video-Konferenzen (WebRTC-basiert)',
-      '',
-      'Beide Systeme sind DSGVO-konform und self-hosted.',
-      '',
-      'In diesem Wizard testen wir:',
-      '• Matrix Homeserver und Federation',
-      '• Jitsi Video-Konferenz Server',
-      '• Integration mit der Schulverwaltung',
-    ],
-  },
-  'api-health': {
-    title: 'Communication API - Backend Integration',
-    content: [
-      'Die Communication API verbindet Matrix und Jitsi mit BreakPilot.',
-      '',
-      'Funktionen:',
-      '• Automatische Raum-Erstellung fuer Klassen',
-      '• Eltern-Lehrer DM-Raeume',
-      '• Meeting-Planung mit Kalender-Integration',
-      '• Benachrichtigungen bei neuen Nachrichten',
-      '',
-      'Endpunkte:',
-      '• /api/v1/communication/admin/stats',
-      '• /api/v1/communication/admin/matrix/users',
-      '• /api/v1/communication/rooms',
-    ],
-  },
-  'matrix': {
-    title: 'Matrix Synapse - Dezentraler Messenger',
-    content: [
-      'Matrix ist ein offenes Protokoll fuer sichere Kommunikation.',
-      '',
-      'Vorteile gegenueber WhatsApp/Teams:',
-      '• Ende-zu-Ende Verschluesselung (E2EE)',
-      '• Dezentral: Kein Single Point of Failure',
-      '• Federation: Kommunikation mit anderen Schulen',
-      '• Self-Hosted: Volle Datenkontrolle',
-      '',
-      'Raum-Typen in BreakPilot:',
-      '• Klassen-Info (Ankuendigungen)',
-      '• Elternvertreter-Raum',
-      '• Lehrer-Eltern DM',
-      '• Fachgruppen',
-    ],
-  },
-  'jitsi': {
-    title: 'Jitsi Meet - Video-Konferenzen',
-    content: [
-      'Jitsi ist eine Open-Source Alternative zu Zoom/Teams.',
-      '',
-      'Features:',
-      '• WebRTC: Keine Software-Installation noetig',
-      '• Bildschirmfreigabe und Whiteboard',
-      '• Breakout-Raeume fuer Gruppenarbeit',
-      '• Aufzeichnung (optional, lokal)',
-      '',
-      'Anwendungsfaelle:',
-      '• Elternsprechtage (online)',
-      '• Fernunterricht bei Schulausfall',
-      '• Lehrerkonferenzen',
-      '• Foerdergespraeche',
-    ],
-  },
-  'summary': {
-    title: 'Test-Zusammenfassung',
-    content: [
-      'Hier sehen Sie eine Uebersicht aller durchgefuehrten Tests:',
-      '• Matrix Homeserver Verfuegbarkeit',
-      '• Jitsi Server Status',
-      '• API-Integration',
-    ],
-  },
-}
-
-const ARCHITECTURE_CONTEXTS: Record<string, ArchitectureContextType> = {
-  'api-health': {
-    layer: 'api',
-    services: ['backend', 'consent-service'],
-    dependencies: ['PostgreSQL', 'Matrix Synapse', 'Jitsi'],
-    dataFlow: ['Browser', 'FastAPI', 'Go Service', 'Matrix/Jitsi'],
-  },
-  'matrix': {
-    layer: 'service',
-    services: ['matrix'],
-    dependencies: ['PostgreSQL', 'Federation', 'TURN Server'],
-    dataFlow: ['Element Client', 'Matrix Synapse', 'Federation', 'PostgreSQL'],
-  },
-  'jitsi': {
-    layer: 'service',
-    services: ['jitsi'],
-    dependencies: ['Prosody XMPP', 'JVB', 'TURN/STUN'],
-    dataFlow: ['Browser', 'Nginx', 'Prosody', 'Jitsi Videobridge'],
-  },
-}
-
-// ==============================================
-// Main Component
-// ==============================================
-
-export default function VideoChatWizardPage() {
-  const [currentStep, setCurrentStep] = useState(0)
-  const [steps, setSteps] = useState<WizardStep[]>(STEPS)
-  const [categoryResults, setCategoryResults] = useState<Record<string, TestCategoryResult>>({})
-  const [fullResults, setFullResults] = useState<FullTestResults | null>(null)
-  const [isLoading, setIsLoading] = useState(false)
-  const [error, setError] = useState<string | null>(null)
-
-  const currentStepData = steps[currentStep]
-  const isTestStep = currentStepData?.category !== undefined
-  const isWelcome = currentStepData?.id === 'welcome'
-  const isSummary = currentStepData?.id === 'summary'
-
-  const runCategoryTest = async (category: string) => {
-    setIsLoading(true)
-    setError(null)
-
-    try {
-      const response = await fetch(`${BACKEND_URL}/api/admin/communication-tests/${category}`, {
-        method: 'POST',
-      })
-
-      if (!response.ok) {
-        throw new Error(`HTTP ${response.status}: ${response.statusText}`)
-      }
-
-      const result: TestCategoryResult = await response.json()
-      setCategoryResults((prev) => ({ ...prev, [category]: result }))
-
-      setSteps((prev) =>
-        prev.map((step) =>
-          step.category === category
-            ? { ...step, status: result.failed === 0 ? 'completed' : 'failed' }
-            : step
-        )
-      )
-    } catch (err) {
-      setError(err instanceof Error ? err.message : 'Unbekannter Fehler')
-    } finally {
-      setIsLoading(false)
-    }
-  }
-
-  const runAllTests = async () => {
-    setIsLoading(true)
-    setError(null)
-
-    try {
-      const response = await fetch(`${BACKEND_URL}/api/admin/communication-tests/run-all`, {
-        method: 'POST',
-      })
-
-      if (!response.ok) {
-        throw new Error(`HTTP ${response.status}: ${response.statusText}`)
-      }
-
-      const results: FullTestResults = await response.json()
-      setFullResults(results)
-
-      setSteps((prev) =>
-        prev.map((step) => {
-          if (step.category) {
-            const catResult = results.categories.find((c) => c.category === step.category)
-            if (catResult) {
-              return { ...step, status: catResult.failed === 0 ? 'completed' : 'failed' }
-            }
-          }
-          return step
-        })
-      )
-
-      const newCategoryResults: Record<string, TestCategoryResult> = {}
-      results.categories.forEach((cat) => {
-        newCategoryResults[cat.category] = cat
-      })
-      setCategoryResults(newCategoryResults)
-    } catch (err) {
-      setError(err instanceof Error ? err.message : 'Unbekannter Fehler')
-    } finally {
-      setIsLoading(false)
-    }
-  }
-
-  const goToNext = () => {
-    if (currentStep < steps.length - 1) {
-      setSteps((prev) =>
-        prev.map((step, idx) =>
-          idx === currentStep && step.status === 'pending'
-            ? { ...step, status: 'completed' }
-            : step
-        )
-      )
-      setCurrentStep((prev) => prev + 1)
-    }
-  }
-
-  const goToPrev = () => {
-    if (currentStep > 0) {
-      setCurrentStep((prev) => prev - 1)
-    }
-  }
-
-  const handleStepClick = (index: number) => {
-    if (index <= currentStep || steps[index - 1]?.status !== 'pending') {
-      setCurrentStep(index)
-    }
-  }
-
-  return (
-    <div>
-      {/* Header */}
-      <div className="bg-white rounded-lg border border-slate-200 p-4 mb-6 flex items-center justify-between">
-        <div className="flex items-center">
-          <span className="text-3xl mr-3">💬</span>
-          <div>
-            <h2 className="text-lg font-bold text-gray-800">Video & Chat Test Wizard</h2>
-            <p className="text-sm text-gray-600">Matrix Messenger & Jitsi Video</p>
-          </div>
-        </div>
-        <Link href="/communication/video-chat" className="text-blue-600 hover:text-blue-800 text-sm">
-          &larr; Zurueck zu Video & Chat
-        </Link>
-      </div>
-
-      {/* Stepper */}
-      <div className="bg-white rounded-lg border border-slate-200 p-6 mb-6">
-        <WizardStepper steps={steps} currentStep={currentStep} onStepClick={handleStepClick} />
-      </div>
-
-      {/* Content */}
-      <div className="bg-white rounded-lg border border-slate-200 p-6">
-        <div className="flex items-center mb-6">
-          <span className="text-3xl mr-3">{currentStepData?.icon}</span>
-          <div>
-            <h2 className="text-xl font-bold text-gray-800">
-              Schritt {currentStep + 1}: {currentStepData?.name}
-            </h2>
-            <p className="text-gray-500 text-sm">
-              {currentStep + 1} von {steps.length}
-            </p>
-          </div>
-        </div>
-
-        <EducationCard content={EDUCATION_CONTENT[currentStepData?.id || '']} />
-
-        {isTestStep && currentStepData?.category && ARCHITECTURE_CONTEXTS[currentStepData.category] && (
-          <ArchitectureContext
-            context={ARCHITECTURE_CONTEXTS[currentStepData.category]}
-            currentStep={currentStepData.name}
-          />
-        )}
-
-        {error && (
-          <div className="bg-red-50 border border-red-200 text-red-700 rounded-lg p-4 mb-6">
-            <strong>Fehler:</strong> {error}
-          </div>
-        )}
-
-        {isWelcome && (
-          <div className="text-center py-8">
-            <button
-              onClick={goToNext}
-              className="bg-blue-600 text-white px-8 py-3 rounded-lg font-medium hover:bg-blue-700 transition-colors"
-            >
-              Wizard starten
-            </button>
-          </div>
-        )}
-
-        {isTestStep && currentStepData?.category && (
-          <TestRunner
-            category={currentStepData.category}
-            categoryResult={categoryResults[currentStepData.category]}
-            isLoading={isLoading}
-            onRunTests={() => runCategoryTest(currentStepData.category!)}
-          />
-        )}
-
-        {isSummary && (
-          <div>
-            {!fullResults ? (
-              <div className="text-center py-8">
-                <p className="text-gray-600 mb-4">
-                  Fuehren Sie alle Tests aus um eine Zusammenfassung zu sehen.
-                </p>
-                <button
-                  onClick={runAllTests}
-                  disabled={isLoading}
-                  className={`px-6 py-3 rounded-lg font-medium transition-colors ${
-                    isLoading
-                      ? 'bg-gray-400 cursor-not-allowed'
-                      : 'bg-blue-600 text-white hover:bg-blue-700'
-                  }`}
-                >
-                  {isLoading ? 'Alle Tests laufen...' : 'Alle Tests ausfuehren'}
-                </button>
-              </div>
-            ) : (
-              <TestSummary results={fullResults} />
-            )}
-          </div>
-        )}
-
-        <WizardNavigation
-          currentStep={currentStep}
-          totalSteps={steps.length}
-          onPrev={goToPrev}
-          onNext={goToNext}
-          showNext={!isSummary}
-          isLoading={isLoading}
-        />
-      </div>
-
-      <div className="text-center text-gray-500 text-sm mt-6">
-        Diese Tests pruefen die Matrix- und Jitsi-Integration.
-        Bei Fragen wenden Sie sich an das IT-Team.
-      </div>
-    </div>
-  )
-}