添加后台图片前台调用的图床接口备用，修复测试出现的问题

kazelee

2025-07-08 9f18954857e9c4c691fc2c8e83d7728abdc18f74

 device/SnapDevice.cs

@@ -161,5 +161,19 @@
                Process.Start(filePath);
            }
        }

        public string GetCapturePictureLocalPath() {
            string path = AppDomain.CurrentDomain.BaseDirectory + "image";
            if (!Directory.Exists(path)) {
                Directory.CreateDirectory(path);
            }
            DateTime now = DateTime.Now;
            string filePath = path + "\\" + string.Format("{0}-{1}-{2}-{3}-{4}-{5}", now.Year, now.Month, now.Day, now.Hour, now.Minute, now.Second) + ".jpg";
            bool ret = NETClient.CapturePicture(_PlayID, filePath, EM_NET_CAPTURE_FORMATS.JPEG);
            if (!ret) {
                return "";
            }
            return filePath;
        }
    }
}