dsh-statusbar: A configurable bottom status bar for DSH Web

dsh-statusbar is a DSH plugin developed by Small-Miao and is released under the MIT License. It aims to address the issue of scattered session tokens, round durations, time consumption, and host status information in DSH Web by centrally displaying key metrics in a VSCode-style bottom status bar. Core features include displaying session tokens, LLM and tool time consumption, cache hit rate, real-time TPS, CPU/memory usage, and host clock, while allowing users to customize the display status, position, and order of each metric via the settings interface. The plugin polls the interface every 2 seconds to fetch data and automatically hides the original duplicate status lines. Installation requires a Web Profile, supports adding via a GitHub URL, and takes effect after a restart. Additionally, the plugin exposes a `statusbar` Cordis service.