dsh-small-fix: A Minor Plumbing and Electrical Repair Tool Plan Generation Plugin

The DeepSeek Harness (DSH) plugin `dsh-small-fix` is a pure Node.js, offline household electrical and plumbing repair plan generator. As a concrete embodiment of the "everything is a plugin" philosophy, it can directly return repair solutions based on user parameters, making it more efficient than writing prompts. The plugin depends on specific library versions and can be invoked in DSH sessions once installed. Community-maintained, lightweight, and licensed under MIT, it runs with the privileges of the current process and is well suited to home repair scenarios.