dsh-wsl-compose: A Docker Compose Management Plugin for WSL

The `dsh-wsl-compose` plugin for DeepSeek Harness (DSH) securely manages Docker Compose projects in WSL. It provides common commands such as `compose_status`, `compose_ps`, and `compose_logs`, and adds a confirmation mechanism for risky operations such as starting or stopping services. Installation requires adding it via the plugin command, and `allowMutate` must be set to `true` before enabling it. It is compatible with DSH ≥ 0.1.2, and users should be mindful of permissions and code review.