dsh-reasoning-support: DSV4.1 Reasoning Support and Full Agent Tool Retention

The `dsh-reasoning-support` plugin is designed to address the issue of omitted conditions by the DSV4.1 model in DeepSeek Harness (DSH) full-agent mode. It improves reasoning accuracy while preserving the full-agent toolchain by streamlining the analysis workflow, supporting multimodal context, and introducing bounded accept-and-repair loops. The plugin requires Node.js >= 24 and DSH versions 0.1.7-rc.2 through 0.2.0. When using it, declare image input in the configuration and select the Reasoning Support preset. It limits repair rounds to 2, auxiliary calls to a maximum of 2, and images to 16, among other constraints, to prevent infinite loops.