[chore] standardize source file headers

apps/desktop/src/gui/runtime/gui_state.h

@@ -1,13 +1,11 @@
 /*
- * Aggregate state visible to GuiRuntime and GuiApplication.
- *
- * Definitions live beside their owners: SDL/window state in application and
- * connection/session state in runtime. This header is intentionally only the
- * composition point.
+ * @Author: DI JUNKUN
+ * @Date: 2026-09-04
+ * Copyright (c) 2026 by DI JUNKUN, All Rights Reserved.
  */
 
-#ifndef CROSSDESK_GUI_STATE_H_
-#define CROSSDESK_GUI_STATE_H_
+#ifndef _GUI_STATE_H_
+#define _GUI_STATE_H_
 
 #include "application/application_state.h"
 #include "runtime/runtime_state.h"
@@ -18,4 +16,4 @@ struct GuiState : ApplicationState, RuntimeState {};
 
 } // namespace crossdesk::gui_detail
 
-#endif // CROSSDESK_GUI_STATE_H_
+#endif