refactor: remove address flag and set default value in command configuration

.vscode/launch.json

@@ -11,7 +11,6 @@
             "mode": "auto",
             "program": "${workspaceFolder}/main.go",
             "args": [
-                "--address", ":80",
                 "--memory", "1G",
                 "--disk", "10G",
                 "--disk-path", "tmp/disk",

cmd/root.go

@@ -29,7 +29,6 @@ import (
 )
 
 var (
-	address          string
 	memory           string
 	memorymultiplier int
 	disk             string
@@ -47,7 +46,7 @@ var rootCmd = &cobra.Command{
 	significantly improving download times and reducing the load on the internet connection.`,
 	Run: func(cmd *cobra.Command, args []string) {
 		sc := steamcache.New(
-			address,
+			":80",
 			memory,
 			memorymultiplier,
 			disk,
@@ -68,7 +67,6 @@ func Execute() {
 }
 
 func init() {
-	rootCmd.Flags().StringVarP(&address, "address", "a", ":80", "The address to listen on")
 	rootCmd.Flags().StringVarP(&memory, "memory", "m", "100MB", "The size of the memory cache")
 	rootCmd.Flags().IntVarP(&memorymultiplier, "memory-multiplier", "M", 10, "The multiplier for the memory cache")
 	rootCmd.Flags().StringVarP(&disk, "disk", "d", "10GB", "The size of the disk cache")