Fix PCB API JSON serialization issue

啊鑫

2025-07-10 2c1d75c4e57092eea3c26b925ab76c9fd17de736

 MESApplication/Startup.cs

@@ -111,7 +111,7 @@
        app.UseEndpoints(endpoints => { endpoints.MapControllers(); });

        //////////////////////////
        

        ///////////////////////////
    }
}