DeepSeek Harness Plugin: dsh-github-flow

`dsh-github-flow` is a GitHub plugin for DeepSeek Harness, designed to enable safe native interactions by reusing the `gh` CLI. The plugin supports full-lifecycle Pull Request management, CI pipeline troubleshooting and remediation, Issue tracking, and secure maintenance of credentials. Agents can perform operations such as code review, automatic fixing of build failures, and release workflow management through natural-language instructions. With features including token overflow prevention, secondary confirmation for high-risk operations, and cross-repository search capabilities, the plugin helps developers build an efficient, immersive GitHub workflow environment.