feat: worked on client

cmd/client/main.go

@@ -1,9 +1,20 @@
 package main
 
 import (
+	"log"
+	"os"
+
 	"github.com/kyren223/eko/internal/client"
 )
 
 func main() {
+	logFile, err := os.OpenFile("client.log", os.O_APPEND|os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0666)
+	if err != nil {
+		log.Fatalln(err)
+	}
+	defer logFile.Close()
+	log.SetOutput(logFile)
+
 	client.Run()
+
 }