some fixes and binary build optimization

main.go

@@ -1,9 +1,11 @@
 package main
 
 import (
+	"fmt"
 	"kurumibot/database"
 	"kurumibot/laniakea"
 	"kurumibot/plugins"
+	"kurumibot/utils"
 	"log"
 
 	"github.com/joho/godotenv"
@@ -40,6 +42,8 @@ func main() {
 	plugins.RegisterAdmin(bot)
 	plugins.RegisterRP(bot)
 
+	fmt.Printf("Build time: %s", utils.BuildTime)
+
 	defer bot.Close()
 	bot.Run()
 }