dsh-webui-background: Provides a configurable background image for DeepSeek Harness Web UI

dsh-webui-background is an MIT open-source plugin (v0.1.0-rc.3) maintained by lx963, providing a configurable background image for the DeepSeek Harness Web UI. It follows the "everything is a plugin" philosophy, avoiding modifications to static files such as `website/public` and instead installs via combination packages and client plugin extension points. Core features include an embedded "Web UI Background" tab in the settings page, supporting upload, drag-and-drop, and preview for PNG, JPEG, GIF, and WebP formats (up to 20 MiB per file, format identified by content); light/dark mode masks can be adjusted separately and take effect immediately upon saving; the background can be disabled or deleted to restore defaults; settings and images are saved independently per Harness profile without mutual interference; Remote...