PPT Expert: DeepSeek Harness Plugin

The `ppt-expert` plugin for DeepSeek Harness (DSH) is designed to solve the problem that creating polished PPT presentations requires extensive manual adjustments. It integrates a slide-expert persona, a LibreOffice Impress MCP server (with 9 tools and direct matplotlib chart output), and real-time browser preview. Installation requires running `setup.sh` and adding the repository to the DSH profiles directory. The plugin features zero npm dependencies, support for Chinese business charts, automatic contrast auditing, and real-time preview refresh. It requires the `danger-full-access` permission, depends on LibreOffice and Python ≥ 3.10, and can generate a finished presentation with a single command-line invocation.