完善前端

frontend/src/app/(app)/governance/page.tsx

@@ -0,0 +1,14 @@
+import { Topbar } from "@/components/shell/Topbar";
+import { Crumbs } from "@/components/ui";
+import { GovernancePanel } from "@/components/panels";
+
+export default function Page() {
+  return (
+    <>
+      <Topbar crumbs={<Crumbs cn="司命台" here="安全与治理" />} />
+      <div className="content">
+        <GovernancePanel />
+      </div>
+    </>
+  );
+}