[split-required] Split website + studio-v2 monoliths (Phase 3 continued)

Website (14 monoliths split):
- compliance/page.tsx (1,519 → 9), docs/audit (1,262 → 20)
- quality (1,231 → 16), alerts (1,203 → 10), docs (1,202 → 11)
- i18n.ts (1,173 → 8 language files)
- unity-bridge (1,094 → 12), backlog (1,087 → 6)
- training (1,066 → 8), rag (1,063 → 8)
- Deleted index_original.ts (4,899 LOC dead backup)

Studio-v2 (5 monoliths split):
- meet/page.tsx (1,481 → 9), messages (1,166 → 9)
- AlertsB2BContext.tsx (1,165 → 5 modules)
- alerts-b2b/page.tsx (1,019 → 6), korrektur/archiv (1,001 → 6)

All existing imports preserved. Zero new TypeScript errors.

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

website/app/admin/rag/_components/IngestionTab.tsx

@@ -0,0 +1,98 @@
+'use client'
+
+import { useState } from 'react'
+import type { IngestionStatus } from './types'
+import { API_BASE } from './types'
+
+export function IngestionTab({
+  status,
+  onRefresh,
+}: {
+  status: IngestionStatus | null
+  onRefresh: () => void
+}) {
+  const [starting, setStarting] = useState(false)
+
+  const startIngestion = async () => {
+    setStarting(true)
+    try {
+      await fetch(`${API_BASE}/api/v1/admin/nibis/ingest`, {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ ewh_only: true }),
+      })
+      onRefresh()
+    } catch (err) {
+      console.error('Failed to start ingestion:', err)
+    } finally {
+      setStarting(false)
+    }
+  }
+
+  return (
+    <div className="space-y-6">
+      <div className="flex items-center justify-between">
+        <div>
+          <h2 className="text-lg font-semibold text-slate-900">Ingestion Status</h2>
+          <p className="text-sm text-slate-500">Übersicht über laufende und vergangene Indexierungsvorgänge</p>
+        </div>
+        <div className="flex gap-3">
+          <button onClick={onRefresh} className="px-4 py-2 text-sm font-medium text-slate-700 bg-white border border-slate-300 rounded-lg hover:bg-slate-50">
+            Aktualisieren
+          </button>
+          <button
+            onClick={startIngestion}
+            disabled={status?.running || starting}
+            className="px-4 py-2 text-sm font-medium text-white bg-primary-600 rounded-lg hover:bg-primary-700 disabled:opacity-50 disabled:cursor-not-allowed"
+          >
+            {starting ? 'Startet...' : 'Ingestion starten'}
+          </button>
+        </div>
+      </div>
+
+      <div className="bg-white rounded-lg border border-slate-200 p-6">
+        <div className="flex items-center gap-4 mb-4">
+          {status?.running ? (
+            <div className="w-3 h-3 bg-yellow-500 rounded-full animate-pulse"></div>
+          ) : (
+            <div className="w-3 h-3 bg-green-500 rounded-full"></div>
+          )}
+          <span className="text-lg font-medium text-slate-900">
+            {status?.running ? 'Indexierung läuft...' : 'Bereit'}
+          </span>
+        </div>
+
+        {status && (
+          <div className="grid grid-cols-2 md:grid-cols-4 gap-6">
+            <div>
+              <p className="text-xs text-slate-500 uppercase tracking-wider">Letzte Ausführung</p>
+              <p className="text-lg font-semibold text-slate-900">{status.lastRun ? new Date(status.lastRun).toLocaleString('de-DE') : '-'}</p>
+            </div>
+            <div>
+              <p className="text-xs text-slate-500 uppercase tracking-wider">Dokumente</p>
+              <p className="text-lg font-semibold text-slate-900">{status.documentsIndexed ?? '-'}</p>
+            </div>
+            <div>
+              <p className="text-xs text-slate-500 uppercase tracking-wider">Chunks</p>
+              <p className="text-lg font-semibold text-slate-900">{status.chunksCreated ?? '-'}</p>
+            </div>
+            <div>
+              <p className="text-xs text-slate-500 uppercase tracking-wider">Fehler</p>
+              <p className={`text-lg font-semibold ${status.errors.length > 0 ? 'text-red-600' : 'text-slate-900'}`}>{status.errors.length}</p>
+            </div>
+          </div>
+        )}
+
+        {status?.errors && status.errors.length > 0 && (
+          <div className="mt-4 p-4 bg-red-50 rounded-lg">
+            <h4 className="text-sm font-medium text-red-800 mb-2">Fehler</h4>
+            <ul className="text-sm text-red-700 space-y-1">
+              {status.errors.slice(0, 5).map((error, i) => (<li key={i}>{error}</li>))}
+              {status.errors.length > 5 && (<li className="text-red-500">... und {status.errors.length - 5} weitere</li>)}
+            </ul>
+          </div>
+        )}
+      </div>
+    </div>
+  )
+}