first commit

app/(admin)/admin/rounds/ActivateRoundButton.tsx

@@ -0,0 +1,25 @@
+"use client";
+
+import { useState } from "react";
+import { useRouter } from "next/navigation";
+
+export default function ActivateRoundButton({ roundId, isActive }: { roundId: string; isActive: boolean }) {
+  const router = useRouter();
+  const [loading, setLoading] = useState(false);
+
+  async function activate() {
+    setLoading(true);
+    await fetch(`/api/rounds/${roundId}/activate`, { method: "POST" });
+    router.refresh();
+    setLoading(false);
+  }
+
+  if (isActive) return <span className="text-xs text-green-600 font-medium px-3 py-1.5">✓ فعال</span>;
+
+  return (
+    <button onClick={activate} disabled={loading}
+      className="bg-blue-600 text-white px-3 py-1.5 rounded-lg text-sm hover:bg-blue-700 transition disabled:opacity-50">
+      {loading ? "..." : "فعال‌سازی"}
+    </button>
+  );
+}