DeepSeek Harness Split Screen Plugin: iTerm-Style Multi-Session Management

The DeepSeek Harness Split Screen plugin attaches to the Web GUI to provide iTerm-style session multiplexing. It supports multi-pane layouts, real-time streaming, model control, and layout persistence, enabling users to efficiently manage multiple sessions on a single screen. The tool supports drag-and-drop resizing, session swapping, and a multilingual interface, although it is limited to local storage management and does not display the full card registry. For developers who need to monitor multiple sessions in parallel, the plugin can effectively improve operational efficiency.