oh-my-deepseek-harness: Native Workflow Skill Set for DeepSeek Harness

`oh-my-deepseek-harness` is a modular skill set tailored for DeepSeek Harness (DSH), ported from `oh-my-codex`. It provides DSH with end-to-end tooling for planning, execution, quality assurance, and operations, supporting skills such as in-depth interviewing, consensus planning, strict autonomous delivery, and code review. The plugin is installed using the `dsh plugin` command and leverages DSH-native capabilities (such as `subagent`, `workflow`, and `ralph`) to enable structured agent collaboration. It requires file read/write permissions, is compatible with DSH 0.1.0-rc.6, and is available under the MIT license.