完整性更新

现在已经实现了大部分基础功能

src/app/(dashboard)/admin/school/grades/page.tsx

@@ -0,0 +1,19 @@
+import { GradesClient } from "@/modules/school/components/grades-view"
+import { getGrades, getSchools, getStaffOptions } from "@/modules/school/data-access"
+
+export const dynamic = "force-dynamic"
+
+export default async function AdminGradesPage() {
+  const [grades, schools, staff] = await Promise.all([getGrades(), getSchools(), getStaffOptions()])
+
+  return (
+    <div className="flex h-full flex-col space-y-8 p-8">
+      <div className="space-y-1">
+        <h2 className="text-2xl font-bold tracking-tight">Grades</h2>
+        <p className="text-muted-foreground">Manage grades and assign grade heads.</p>
+      </div>
+      <GradesClient grades={grades} schools={schools} staff={staff} />
+    </div>
+  )
+}
+