@jiesou/dsh-cline-free-provider: Integrating Cline Free Models into DSH

`@jiesou/dsh-cline-free-provider` is an MIT-licensed DSH plugin designed to simplify the integration of Cline free models into DSH. The plugin eliminates tedious manual configuration steps by encapsulating API key storage, Base URL, and model list synchronization. Its core advantage lies in automatically syncing and filtering all Cline free models from a remote source at startup, requiring no manual model list configuration—users only need to save `CLINE_API_KEY` (available from the Cline official website) via the DSH credentials service to directly select models on the Web Models page. The plugin supports optional configurations such as `apiKeyEnv`, `baseURL`, and token limits, but by default