refactor(admin): split dsfa, audit-llm, quality pages

Extract components and hooks from oversized page files (563/561/520 LOC)
into colocated _components/ and _hooks/ subdirectories. All three
page.tsx files are now thin orchestrators under 300 LOC each
(dsfa: 216, audit-llm: 121, quality: 163). Zero behavior changes.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

admin-compliance/app/sdk/audit-llm/_components/StatCard.tsx

@@ -0,0 +1,10 @@
+'use client'
+
+export function StatCard({ label, value, highlight }: { label: string; value: string; highlight?: boolean }) {
+  return (
+    <div className={`rounded-xl border p-4 ${highlight ? 'border-red-200 bg-red-50' : 'border-gray-200 bg-white'}`}>
+      <div className="text-sm text-gray-500">{label}</div>
+      <div className={`text-2xl font-bold mt-1 ${highlight ? 'text-red-700' : 'text-gray-900'}`}>{value}</div>
+    </div>
+  )
+}