dsh-tool-vision: DashScope Image Description Tool for DeepSeek Harness

`dsh-tool-vision` is an open-source plugin in the DeepSeek Harness (DSH) ecosystem, designed to introduce visual capabilities to text models. It leverages DashScope's OpenAI-compatible interface and uses the `image_describe` model-side tool to directly read local images and generate descriptions. The plugin offers two core features: it enables the model to invoke the tool with a path parameter to analyze images, and it provides a "paste bridging" capability that converts pasted images into path text, thereby bypassing the host's image access restrictions. Users must configure their own DashScope API key, and after installation, the tool will appear in the model's tool catalog. Licensed under the MIT License, it is suitable for scenarios that require handling local visual context in conversational flows.