dsh-account-quota: A DeepSeek Harness Web Plugin That Displays Real Balance and Usage

`dsh-account-quota` is a web plugin for DeepSeek Harness (DSH), designed to present account balance and usage at a glance. It displays the balance, today’s consumption, and usage rate in a persistent status line, with data sourced directly from the official API. The plugin supports both the DeepSeek official adapter and the OpenCode Go adapter, and uses a difference-based algorithm to accurately calculate today’s consumption. Installation requires configuring environment variables and restarting the process, while cache and timeout parameters can be adjusted via YAML. It also uses CSS to fix the layout, displaying side by side with the statistics line to ensure a clean interface.