Introducing the DeepSeek Harness (DSH) Plugin: dsh-musage

`dsh-musage` is a plugin for DeepSeek Harness (DSH), designed to address the fragmented experience developers face when monitoring AI provider quotas. It displays in real time the balances of five major providers (MiniMax, DeepSeek, Kimi, OpenRouter, and Zhipu) in the DSH Web toolbar and updates automatically when switching models. It supports reusing API keys configured in DSH, uses provider-specific smart display formats, and features a zero-intrusion design. Once installed, developers can check quotas without interrupting their workflow, making it suitable for code or content development scenarios.