dsh-opencode-zen: Integrating Free Models from OpenCode Zen into DeepSeek Harness

dsh-opencode-zen is a DSH plugin maintained by xiaozhe7772222, designed to integrate the free-tier models of OpenCode Zen into the dsh web model selector with zero configuration and zero cost. This plugin exposes an opencode provider, supporting six free models including DeepSeek V4 Flash, Xiaomi MiMo, and Tencent Hunyuan, allowing users to use them directly without registration or providing an API key. Core features include built-in 429/5xx automatic backoff and request throttling for quota management, support for streaming, tool calls, and reasoning content passthrough, with the ability to optimize output by setting reasoning effort levels. The plugin can be used with ds