DeepSeek Harness Historical Skin: dsh-815-skin

`dsh-815-skin` is an "archive-style" skin designed for the DeepSeek Harness Web GUI, intended to address the visually plain default interface. Maintained by `lengduan`, it overrides the default styles through a plugin architecture, replacing the conversation background with Chen Jian's oil painting "9:00, September 9, 1945" and displaying a small Blue Sky with White Sun flag when a session is selected. Its core features include instant activation and restoration, background image data isolation (embedded into the Client Bundle), and node marking. Installation requires the `--profile web` parameter, and it automatically restores the original state on uninstall. The plugin only affects the visual appearance of the Web GUI, without reading or writing data or altering Agent behavior logic, making it suitable for users who prefer a specific visual style.