DeepSeek Harness Plugin: dsh-widechat

`dsh-widechat` is a browser extension designed specifically for DeepSeek Harness (DSH) to resolve layout issues on widescreen displays. It uses CSS overrides and a settings panel to overcome the default conversation column width limit, expand the conversation area, and right-align the session statistics bar. It also constrains user message bubble widths and the input box height to prevent obscuring the conversation history. Users can adjust the relevant parameters in real time from DSH’s General settings. The installation command is `dsh plugin --profile web add @furayoshi/dsh-widechat`.