DeepSeek Harness Evolution Console Plugin

`dsh-evolution-console` is a self-evolving closed-loop tool designed for the DeepSeek Harness Creator mode. It addresses the lack of version freezing, evaluation evidence, and baseline comparison in the original workflow. Through candidate freezing, isolated evaluation, deterministic gates, and version lineage management, it ensures that agent iterations are evidence-based. Developers need to install it in the Web and Headless Profiles and use its provided tools to execute the full "generate-freeze-evaluate-rollback" workflow within a session, achieving objective version control and rigorous regression testing.