just add comment

internal/infra/infra.go

@@ -1,3 +1,7 @@
+// Copyright 2025 ROC. All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 // Package infra infrastructure components.
 
 package infra

internal/model/enum/enum.go

@@ -1,3 +1,7 @@
+// Copyright 2025 ROC. All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 // Package enum all const enum variables define.
 
 package enum