Add admin challenge management features: Implement functions for canceling and reactivating challenges, enhance error handling, and update the ChallengeManagement component to support these actions. Update API to retrieve all challenge statuses for admin and improve UI to display active challenges count.

app/api/challenges/active-count/route.ts

@@ -0,0 +1,23 @@
+import { NextResponse } from "next/server";
+import { auth } from "@/lib/auth";
+import { challengeService } from "@/services/challenges/challenge.service";
+
+export async function GET() {
+  try {
+    const session = await auth();
+
+    if (!session?.user?.id) {
+      return NextResponse.json({ count: 0 });
+    }
+
+    const count = await challengeService.getActiveChallengesCount(
+      session.user.id
+    );
+
+    return NextResponse.json({ count });
+  } catch (error) {
+    console.error("Error fetching active challenges count:", error);
+    return NextResponse.json({ count: 0 });
+  }
+}
+