update comments, update go.mod check for register username

go.mod

@@ -154,6 +154,5 @@ require (
 	golang.org/x/crypto v0.14.0 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 )
-replace (
-	github.com/OpenIMSDK/protocol v0.0.37 => github.com/AndrewZuo01/protocol v0.0.0-20231221102834-60b65871d305
-)
+
+replace github.com/OpenIMSDK/protocol v0.0.37 => github.com/AndrewZuo01/protocol v0.0.0-20231221102834-60b65871d305

go.sum

@@ -15,8 +15,8 @@ cloud.google.com/go/storage v1.30.1 h1:uOdMxAs8HExqBlnLtnQyP0YkvbiDpdGShGKtx6U/o
 cloud.google.com/go/storage v1.30.1/go.mod h1:NfxhC0UJE1aXSx7CIIbCf7y9HKT7BiccwkR7+P7gN8E=
 firebase.google.com/go v3.13.0+incompatible h1:3TdYC3DDi6aHn20qoRkxwGqNgdjtblwVAyRLQwGn/+4=
 firebase.google.com/go v3.13.0+incompatible/go.mod h1:xlah6XbEyW6tbfSklcfe5FHJIwjt8toICdV5Wh9ptHs=
-github.com/AndrewZuo01/protocol v0.0.0-20231219031520-648989b91fca h1:OgKuNZHdQ0qihYOQ4xnoJ0xo3TGUwlXzW7SicLa4IEw=
-github.com/AndrewZuo01/protocol v0.0.0-20231219031520-648989b91fca/go.mod h1:F25dFrwrIx3lkNoiuf6FkCfxuwf8L4Z8UIsdTHP/r0Y=
+github.com/AndrewZuo01/protocol v0.0.0-20231221102834-60b65871d305 h1:BhfGwZd7P0uUSoYv22UKGyeX8ci24vTaJXTRN/u/P54=
+github.com/AndrewZuo01/protocol v0.0.0-20231221102834-60b65871d305/go.mod h1:F25dFrwrIx3lkNoiuf6FkCfxuwf8L4Z8UIsdTHP/r0Y=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/IBM/sarama v1.41.3 h1:MWBEJ12vHC8coMjdEXFq/6ftO6DUZnQlFYcxtOJFa7c=
 github.com/IBM/sarama v1.41.3/go.mod h1:Xxho9HkHd4K/MDUo/T/sOqwtX/17D33++E9Wib6hUdQ=