Fixed bug where DDNSUpdater doesn't update if we start from a new service with current IP address

main.go

@@ -160,6 +160,12 @@ func main() {
 		fmt.Println(time.Now(), "Starting with current IP:", lastIP)
 	}
 
+	if err := updateDDNS(holder.get().UpdateURL); err != nil {
+		fmt.Println("Failed to update DDNS:", err)
+	} else {
+		fmt.Println(time.Now(), "DDNS updated successfully")
+	}
+
 	ticker := time.NewTicker(time.Duration(cfg.CheckIntervalSecs) * time.Second)
 	defer ticker.Stop()