dsh-prospector: A GitHub Research Assistant for DeepSeek Harness

`dsh-prospector` is a GitHub research assistant plugin for DeepSeek Harness, designed to help agents automatically investigate open-source solutions. It provides tools for searching, reading documentation and source code, and cloning repositories; supports low, medium, and high research depths; and can generate implementation plans via the `/research` command. The plugin depends on `gh` and `git` in the system environment, requires mounting through YAML configuration, and currently supports read-only operations, primarily assisting agents in extracting open-source implementation approaches.