完整性更新

现在已经实现了大部分基础功能

src/modules/dashboard/components/student-dashboard/student-dashboard-header.tsx

@@ -0,0 +1,17 @@
+import Link from "next/link"
+
+import { Button } from "@/shared/components/ui/button"
+
+export function StudentDashboardHeader({ studentName }: { studentName: string }) {
+  return (
+    <div className="flex flex-col justify-between gap-4 md:flex-row md:items-center">
+      <div className="space-y-1">
+        <h1 className="text-3xl font-bold tracking-tight">Dashboard</h1>
+        <div className="text-sm text-muted-foreground">Welcome back, {studentName}.</div>
+      </div>
+      <Button asChild variant="outline">
+        <Link href="/student/learning/assignments">View assignments</Link>
+      </Button>
+    </div>
+  )
+}