dsh-qwen-paint: Invoking Local ComfyUI in DeepSeek Harness to Generate Qwen Images

The DeepSeek Harness (DSH) plugin `dsh-qwen-paint` enables DSH to directly call a locally running ComfyUI instance to generate images using the Qwen-Image 2.1 model. The plugin consists of Host and Client components and runs entirely locally without requiring network access or an API key. Installation requires ComfyUI and three model files totaling approximately 13.3GB; an NVIDIA GPU is recommended. After installation, restart DSH and enter an image description in the chat box to generate an image. The plugin supports multiple aspect ratios, random seeds, and negative prompts, and includes features such as automatic VRAM release on idle and inline image display. Note that the model uses approximately 14GB of VRAM, AMD users may encounter silent errors, and the model files are prohibited for commercial use.