DSH Model Management Plugin: Unified Model Visibility and Routing

`sharewiner/dsh-model-management` is a DSH Web profile plugin designed to streamline the cumbersome operations in OpenAI-compatible model management. It provides a centralized management interface, supports configuring default models, and controls the visibility of models and providers. It also includes web search routing functionality. The plugin accesses DSH services through a compatibility layer without storing keys. It is currently in early access and requires a Node.js 22.19+ environment.