refactor(admin): split academy/[id], iace/hazards, ai-act pages

Extracted components and constants into _components/ subdirectories
to bring all three pages under the 300 LOC soft target (was 651/628/612,
now 255/232/278 LOC respectively). Zero behavior changes.

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

admin-compliance/app/sdk/ai-act/_components/LoadingSkeleton.tsx

@@ -0,0 +1,25 @@
+'use client'
+
+export function LoadingSkeleton() {
+  return (
+    <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
+      {[1, 2, 3, 4].map(i => (
+        <div key={i} className="bg-white rounded-xl border border-gray-200 p-6 animate-pulse">
+          <div className="flex items-center gap-2 mb-3">
+            <div className="h-5 w-24 bg-gray-200 rounded-full" />
+            <div className="h-5 w-20 bg-gray-200 rounded-full" />
+          </div>
+          <div className="h-6 w-3/4 bg-gray-200 rounded mb-2" />
+          <div className="h-4 w-full bg-gray-100 rounded mb-4" />
+          <div className="h-4 w-1/2 bg-gray-100 rounded" />
+          <div className="mt-4 pt-4 border-t border-gray-100">
+            <div className="flex gap-2">
+              <div className="h-8 flex-1 bg-gray-200 rounded-lg" />
+              <div className="h-8 w-24 bg-gray-200 rounded-lg" />
+            </div>
+          </div>
+        </div>
+      ))}
+    </div>
+  )
+}