Support custom sse port (#11)

fix: #10
Reviewed-on: https://gitea.com/gitea/gitea-mcp/pulls/11

cmd/cmd.go

@@ -13,6 +13,7 @@ import (
 var (
 	transport string
 	host      string
+	port      int
 	token     string
 
 	debug bool
@@ -37,6 +38,12 @@ func init() {
 		"https://gitea.com",
 		"Gitea host",
 	)
+	flag.IntVar(
+		&port,
+		"port",
+		8080,
+		"sse port",
+	)
 	flag.StringVar(
 		&token,
 		"token",
@@ -66,6 +73,8 @@ func init() {
 		flagPkg.Host = "https://gitea.com"
 	}
 
+	flagPkg.Port = port
+
 	flagPkg.Token = token
 	if flagPkg.Token == "" {
 		flagPkg.Token = os.Getenv("GITEA_ACCESS_TOKEN")