dsh-provider-probe: DeepSeek Harness Provider Connectivity and Latency Detection

`dsh-provider-probe` is a community plugin for DeepSeek Harness designed to address difficulties in multi-provider model connectivity and diagnostics. By sending minimal requests, it allows manual testing of model routing, latency, and input capabilities, and supports error classification and export of diagnostic reports. It limits output tokens by default and includes timeout controls; note that usage may incur a small amount of model fees. This tool is suitable for troubleshooting connectivity, verifying model availability, and preparing reports for technical discussions.