dsh-llm-guardian: DeepSeek Harness Provider Health Check and Usage Statistics Plugin

# Introduction After configuring multiple Providers in DeepSeek Harness (DSH), several issues repeatedly arise: determining whether a Provider is currently available often requires waiting for a request to fail; checking account balance or subscription quotas requires opening a separate console page; and there is a lack of a unified view to see how many tokens were consumed locally over a period and on which models they were spent on. `dsh-llm-guardian` addresses these specific issues. It centralizes health checks, quota control, usage queries, and local statistics into the DSH settings page, while not saving API keys in plugin settings. Below is an introduction to what it does, how to install it, and what to watch out for when using it. # What is dsh-llm-guardian