dsh-settings-hub: Unified Management of Third-Party Plugin Settings for DeepSeek Harness

`dsh-settings-hub` is a DeepSeek Harness plugin maintained by Amengclass, designed to address the scattered and disorganized settings of third-party plugins. It aggregates all plugin settings through a unified entry point and supports dynamic discovery, automatic grouping, drag-and-drop reordering, and zero-intrusion installation. The plugin is compatible with web and desktop environments (0.1.x/0.2.x), although some plugins may not yet be supported due to differences in registration mechanisms. During installation, be mindful of the configuration requirements for pnpm 11 and the impact of browser caching on reordering.