DeepSeek Harness Plugin: dsh-token-usage-sidebar (Persistent Token Usage Statistics)

`dsh-token-usage-sidebar` is a community plugin for DeepSeek Harness (DSH) designed to address the issue of Token usage records being lost after a session restart. By persisting data in a SQLite database, the plugin provides a sidebar summary and a native settings page, with filters for today, yesterday, the last 7 days, or all time. It displays detailed metrics, including total usage, input, output, cache, inference, and call counts. The data is sourced directly from the DSH runtime and includes deduplication and shutdown-safe protection, making it suitable for long-term cost tracking by developers.