refactor: implement session checking utility, enhance device queries with session validation, and improve UI interactions for device management

utils/session.ts

@@ -0,0 +1,11 @@
+"use server";
+
+import { authOptions } from "@/app/auth";
+import { getServerSession } from "next-auth";
+import { redirect } from "next/navigation";
+
+export async function checkSession() {
+	const session = await getServerSession(authOptions);
+	if (!session) return redirect("/auth/signin");
+	return session;
+}