DeepSeek Harness Plugin dsh-skill-importer: Import, organize, and call Agent Skills in the Web UI

`dsh-skill-importer` is a Web UI plugin for DeepSeek Harness (DSH) designed to address issues such as the dispersed management of Agent Skills, duplicate naming, and missing resources. This plugin allows users to import, verify, deduplicate, and migrate Skills from local Markdown files, URLs, or other AI coding agents like Claude Code and Codex via a web interface, automatically incorporating them into Harness's discovery mechanism. Core features include support for batch migration of full Skills directories, preservation of scripts, references, and resource files, and the provision of intelligent deduplication and replacement protection mechanisms. Users can invoke Skills via the Composer Picker, the `/skills` command, or by directly typing their names.