dsh-ellipsis: Ellipsis Abbreviation

`dsh-ellipsis` is a model inference plugin in the DeepSeek Harness (DSH) ecosystem, maintained by uckkk. Implemented in pure Node.js, it focuses on providing basic ellipsis/abbreviation functionality without relying on network requests. Installation requires `@deepseek-ai/cordis` (^4.0.1) and `@deepseek-ai/dsh-tools` (>=0.1.0-rc.6). Users can install it with the `dsh plugin add` command and directly invoke its registered tools in a session. The plugin is suitable for simplifying long texts, runs with DSH process permissions, and users are advised to review its source code and license before installation.