dsh-cliproxyapi-provider: CLIProxyAPI Plugin for DeepSeek Harness

`dsh-cliproxyapi-provider` is a DeepSeek Harness (DSH) plugin maintained by ChadCSong, designed to simplify the access and management of CLIProxyAPI models. The plugin detects the CLIProxyAPI service (default port 8317) through a local automatic discovery mechanism and dynamically synchronizes the model directory to the DSH native selector, supporting seamless model switching and context limit synchronization. Its core highlights include automatically invoking a vision model to process image descriptions when the main model only supports text, and then sending the text to the main model, thereby extending multimodal capabilities without modifying the DSH core. API keys are securely stored via the DSH credential service to prevent plaintext leakage. The applicable environment needs to meet DeepSeek Harness requirements...