dsh-wsl-jev: DeepSeek Harness WSL Plugin

`dsh-wsl-jev` is a self-contained WSL plugin in the DeepSeek Harness (DSH) ecosystem that enhances agents' structured decision-making capabilities. It directly calls the System One model from TypeSafe Jev or OpenRouter and provides four core tools: `status`, `ask`, `check`, and `rank`, focusing on decision-making rather than generating long-form text. The plugin is part of the `dsh-wsl-kit` suite and requires configuration of an API key (OpenRouter or TypeSafe) and environment variables after installation. It does not depend on third-party middleware, requires DSH version ≥ 0.1.2, and is a lightweight tool for improving agent judgment efficiency.