user id -> user name

in attendace

apps/admin/src/app/api/admin/attendance/route.ts

@@ -34,7 +34,33 @@ export async function GET(req: NextRequest) {
       ? await getAttendanceByGym(targetGymId)
       : await db.getAllAttendance();
 
-    return successResponse({ records: attendance });
+    // Get all users to enrich attendance with user names
+    const allUsers = await db.getAllUsers();
+    const userMap = new Map(
+      allUsers.map((u) => [
+        u.id,
+        {
+          firstName: u.firstName,
+          lastName: u.lastName,
+          email: u.email,
+        },
+      ]),
+    );
+
+    // Enrich attendance records with user information
+    const enrichedAttendance = attendance.map((record) => {
+      const userInfo = userMap.get(record.userId);
+      return {
+        ...record,
+        userName: userInfo
+          ? `${userInfo.firstName} ${userInfo.lastName}`.trim() ||
+            userInfo.email
+          : record.userId,
+        userEmail: userInfo?.email,
+      };
+    });
+
+    return successResponse({ records: enrichedAttendance });
   } catch (error) {
     console.error("Admin attendance error:", error);
     return new NextResponse("Internal Server Error", { status: 500 });