Fix: Remove broken getKlausurApiUrl and clean up empty lines

sed replacement left orphaned hostname references in story page
and empty lines in getApiBase functions.

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

admin-lehrer/app/(admin)/ai/magic-help/_components/TabBatch.tsx

@@ -0,0 +1,53 @@
+'use client'
+
+import { BatchUploader } from '@/components/ai/BatchUploader'
+import { API_BASE } from '../types'
+
+export function TabBatch() {
+  return (
+    <div className="space-y-6">
+      {/* Batch OCR Processing */}
+      <div className="bg-white rounded-xl shadow-sm border p-6">
+        <h2 className="text-lg font-semibold text-slate-900 mb-2">Batch-Verarbeitung</h2>
+        <p className="text-sm text-slate-500 mb-6">
+          Verarbeite mehrere Bilder gleichzeitig mit Echtzeit-Fortschrittsanzeige.
+          Die Ergebnisse werden per Server-Sent Events gestreamt.
+        </p>
+
+        <BatchUploader
+          apiBase={API_BASE}
+          maxFiles={20}
+          autoProcess={false}
+          onComplete={(results) => {
+            console.log('Batch complete:', results)
+          }}
+        />
+      </div>
+
+      {/* Batch Processing Info */}
+      <div className="grid grid-cols-1 md:grid-cols-3 gap-6">
+        <div className="bg-gradient-to-br from-blue-50 to-blue-100 border border-blue-200 rounded-xl p-6">
+          <div className="text-3xl mb-2">🚀</div>
+          <h3 className="text-lg font-semibold text-slate-900 mb-2">Parallele Verarbeitung</h3>
+          <p className="text-sm text-slate-600">
+            Mehrere Bilder werden parallel verarbeitet fuer maximale Geschwindigkeit.
+          </p>
+        </div>
+        <div className="bg-gradient-to-br from-green-50 to-green-100 border border-green-200 rounded-xl p-6">
+          <div className="text-3xl mb-2">💾</div>
+          <h3 className="text-lg font-semibold text-slate-900 mb-2">Smart Caching</h3>
+          <p className="text-sm text-slate-600">
+            Identische Bilder werden automatisch aus dem Cache geladen (unter 50ms).
+          </p>
+        </div>
+        <div className="bg-gradient-to-br from-purple-50 to-purple-100 border border-purple-200 rounded-xl p-6">
+          <div className="text-3xl mb-2">📊</div>
+          <h3 className="text-lg font-semibold text-slate-900 mb-2">Live-Fortschritt</h3>
+          <p className="text-sm text-slate-600">
+            Echtzeit-Updates via Server-Sent Events zeigen den Verarbeitungsfortschritt.
+          </p>
+        </div>
+      </div>
+    </div>
+  )
+}