dsh-model-cap: Advanced Management Console for DeepSeek Harness Providers and Models

The DeepSeek Harness plugin `dsh-model-cap` introduces a standalone navigation page to address the need for fine-grained management. Its core features include CRUD operations for providers and models, drag-and-drop reordering, gateway pulling, inference tier declarations, and connectivity testing. The plugin also supports blank API keys, drag-and-drop sorting, and batch deletion. It is easy to install and supports local development with hot-reload and configuration recovery mechanisms, making it suitable for developers who need to finely manage multiple OpenAI-compatible endpoints or local models.