dsh-schematic: The Human and Agent Control Plane of DeepSeek Harness

`dsh-schematic` is a visualization plugin for DeepSeek Harness designed to address challenges in managing complex workflows. It provides a unified control plane for humans and Agents, supporting real-time topology wiring, debugging activities, and plugin blueprint management through a full-screen visual interface. The tool allows users to securely configure and switch plugin combinations and to export and import blueprints in YAML format, enabling symmetric interaction between human operations and Agent tools. Installation requires Node.js >= 22.19. Note that editing is disabled by default and the write mechanism is secure.