DeepSeek Harness Plugin: dsh-enhance

`dsh-enhance` is an enhancement toolkit for DeepSeek Harness (DSH), designed to provide standard, plugin-like deep workflows. It features core capabilities such as packaged skills, work-rule injection, diagnostics and delivery gatekeeping, work tracking, and Worktree support. Users can install it via the CLI or GUI and enable the "Enhance" preset in a session to activate the deep work protocol, with support for YAML-based configuration. This plugin is suitable for users who want to quickly reuse code review and Git workflows and perform structured deep work.