[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/unity-bridge/_components/StatCard.tsx

@@ -0,0 +1,31 @@
+'use client'
+
+export function StatCard({
+  title,
+  value,
+  color = 'gray',
+  icon,
+}: {
+  title: string
+  value: string | number
+  color?: 'red' | 'yellow' | 'green' | 'blue' | 'gray'
+  icon?: React.ReactNode
+}) {
+  const colorClasses = {
+    red: 'bg-red-50 border-red-200 text-red-700',
+    yellow: 'bg-yellow-50 border-yellow-200 text-yellow-700',
+    green: 'bg-green-50 border-green-200 text-green-700',
+    blue: 'bg-blue-50 border-blue-200 text-blue-700',
+    gray: 'bg-gray-50 border-gray-200 text-gray-700',
+  }
+
+  return (
+    <div className={`rounded-lg border p-4 ${colorClasses[color]}`}>
+      <div className="flex items-center justify-between">
+        <p className="text-sm font-medium opacity-80">{title}</p>
+        {icon}
+      </div>
+      <p className="text-2xl font-bold mt-1">{value}</p>
+    </div>
+  )
+}