xueayi/dsh-opencode-go-usage: View OpenCode Go Quota in DSH Web GUI

`@xueayi/dsh-opencode-go-usage` is an MIT-licensed plugin developed for DeepSeek Harness (DSH), designed to address the pain point of developers frequently switching between web interfaces to check OpenCode Go quotas. The plugin retrieves data via the official API and provides a draggable floating dock in the DSH Web GUI, displaying real-time information on the 5-hour rolling, weekly, and monthly quota windows, remaining quota, and reset countdown. Core features include support for collapsible badges and expandable panels, minimal mode, auto-refresh (60 seconds when collapsed, 10 seconds when expanded), and retention of the last successful data on failure. The plugin does not interfere with the model request path, with no token injection or impact on tool modes. Usage requires configuring