[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/docs/audit/_components/AuditHeader.tsx

@@ -0,0 +1,37 @@
+'use client'
+
+/**
+ * Sticky header bar with document title, TOC toggle, and print button.
+ */
+
+interface AuditHeaderProps {
+  showToc: boolean
+  onToggleToc: () => void
+}
+
+export function AuditHeader({ showToc, onToggleToc }: AuditHeaderProps) {
+  return (
+    <div className="bg-white border-b border-slate-200 px-8 py-4 sticky top-16 z-10">
+      <div className="flex items-center justify-between max-w-4xl">
+        <div>
+          <h1 className="text-xl font-bold text-slate-900">DSGVO-Audit-Dokumentation</h1>
+          <p className="text-sm text-slate-500">OCR-Labeling-System | Version 1.0.0 | 21. Januar 2026</p>
+        </div>
+        <div className="flex items-center gap-3">
+          <button
+            onClick={onToggleToc}
+            className="px-3 py-1.5 text-sm text-slate-600 hover:text-slate-900 border border-slate-300 rounded-lg hover:bg-slate-50"
+          >
+            {showToc ? 'TOC ausblenden' : 'TOC anzeigen'}
+          </button>
+          <button
+            onClick={() => window.print()}
+            className="px-3 py-1.5 text-sm font-medium text-white bg-primary-600 rounded-lg hover:bg-primary-700"
+          >
+            PDF drucken
+          </button>
+        </div>
+      </div>
+    </div>
+  )
+}