dsh-wsl-launch: Launching Controlled Windows Applications from WSL

`dsh-wsl-launch` is a security plugin for DeepSeek Harness (DSH) designed to enable agents in WSL to safely invoke native Windows applications. It uses a whitelist mechanism to restrict launching access to predefined applications (such as VS Code and browsers), preventing the risk of arbitrary code execution. This plugin depends on `dsh-wsl-kit`; after installation, an allowlist must be configured, and the `win_launch` tool is used to perform the invocation.