dsh-ui-three-body: A plugin injecting the "KaiZhi" kernel for DSH

`dsh-ui-three-body` is a plugin for DSH designed to enhance an agent's capabilities in understanding requirements, presenting solutions, and delivery acceptance by injecting the "OpenWisdom" kernel, while optimizing token costs. The plugin's core functions include a "Sophon's Five Strategies" workflow based on first principles, an S/M/L scale routing mechanism, a quality gate featuring a true validation loop and executable assertions, and a UI delivery pre-versioning feature. Additionally, it provides a floating Sophon component with interactive effects such as dynamic skins and mouse following. Installation requires a Node environment >= 22. First, install the DSH CLI, then add the plugin via npm, GitHub, or a local path, supporting pnpm workspace management. After installation, restart `dsh web` and configure the AI mode in "Settings → Three-Body" (as the total token budget).