dsh-pr-guardian: PR Feedback Inbox

`dsh-pr-guardian` is a DeepSeek Harness plugin maintained by Harzva, designed to address the problem of fragmented PR feedback management. It supports shared state with Codex and provides a sidebar feedback panel, PR discovery, prioritization, and local CLI tools. The plugin supports favorites, status tagging, report generation, and safely isolated read-only management, while requiring specific environment prerequisites.