Remove createdAt parameter when creating a Daily

backend-services/feed-service/app/models/Daily.scala

@@ -33,10 +33,10 @@ object Daily {
         questionId: ObjectId,
         content: String,
         likes: Int = 0,
-        createdAt: Date = Date.from(Instant.now()),
         timeout: Int = 4
     ): Daily = {
-        val daily: Daily = Daily(None, userId, questionId, content, likes, createdAt)
+        val now: Date = Date.from(Instant.now())
+        val daily: Daily = Daily(None, userId, questionId, content, likes, now)
         val future: Future[Daily] = dailyRepo.insertDaily(daily)
         Await.result(future, timeout.seconds)
     }