@stu-xie/dsh-message: Unified integration of WeChat, Feishu, QQ, WeCom, and DingTalk into DeepSeek Harness

`@stu-xie/dsh-message` is a message access plugin for DeepSeek Harness (DSH), designed to address the issues of inconsistent personas, memories, and contexts caused by the scattered configuration of multiple IM channels. The plugin supports unified access for WeChat, Feishu, QQ, WeCom, and DingTalk, enabling cross-channel sharing of prompts, long-term memory, session context, and model strategies through a single DSH assistant. Core features include: * Using a unified Host/Client architecture for centralized management of channels and assistant states. * Providing streaming replies, auto-reconnect, and multi-bot management. * Adopting numbered option interactions for mobile adaptation. * Supporting atomic updates for long-term memory management. In terms of model routing, a hierarchical strategy is adopted with a failure fallback mechanism; the `danger-full-access` permission is enabled by default to turn off person...