dsh-opencode-go-usage: OpenCode Go Usage Observability Plugin for DeepSeek Harness

`dsh-opencode-go-usage` is a Web-GUI plugin that provides usage observation for OpenCode Go model quotas within DeepSeek Harness (DSH). It adds a section to the settings sidebar, displaying usage percentages, quota limits, and reset times for 5-hour, weekly, and monthly allowances. The plugin supports viewing DSH session details, with drill-down capabilities to token usage for individual model calls, and statistics on cache hit rates for both sessions and individual calls. Additionally, it offers model-grouped filtering and aggregate comparisons, a bilingual interface toggle between Chinese and English, and a persistent quota widget below the input box that changes color in real time. The plugin retrieves data by calling the OpenCode Go API, featuring data freshness indicators and a diagnostic section to display request status. Users can install it from GitHub or locally, and configure it accordingly.