dsh-bottom-stats: DSH Web UI Bottom Statistics and Context Occupancy Enhancements

`dsh-bottom-stats` is a plugin for the DeepSeek Harness (DSH) Web UI, aimed at solving the truncation of the official stats line and the lack of an intuitive context usage indicator. It sits below the chat input box, providing a full-width stats line to ensure trailing metrics are fully displayed, and showing a context usage progress bar. Hovering over the progress bar reveals the exact token usage percentage. Users need to run the designated command in the terminal to install it and restart the Web Profile for it to take effect. The plugin requires no extra configuration and poses no security risk.