重命名包 client 为 edge；重命名包 server 为 gateway

cmd/client/main.go

@@ -1,9 +1,9 @@
 package main
 
-import "proxy-server/client"
+import "proxy-server/edge"
 
 func main() {
-	err := client.Start()
+	err := edge.Start()
 	if err != nil {
 		println(err.Error())
 	}