dsh-error-lens: A Read-Only Error Diagnostics Plugin for DeepSeek Harness

`dsh-error-lens` is a community diagnostic plugin for DeepSeek Harness, designed to address vague API error messages and hard-to-locate issues during debugging. It reads local session logs and presents failure details in a structured way, providing eight error categories, key context such as Request IDs, and support for generating redacted reports. The plugin follows privacy principles, reading logs only without DOM injection. Installation requires Node.js >= 22.19 and DSH >= 0.1.0-rc.6. Configuration options include the maximum number of records and message length limits.