dsh-chatnode-wechat: Operating DSH Agents via WeChat

`dsh-chatnode-wechat` is a community plugin bundle for DeepSeek Harness (DSH) designed to integrate DSH Profiles with WeChat personal accounts through the Tencent iLink gateway, enabling remote monitoring and interaction with AI agents on mobile devices. This plugin comprises two components: `wechat-gateway` (responsible for connection, login, and media processing) and `wechat-conversation-node` (handling business logic bridging). Core functionalities include bidirectional text and image transmission, conversation management (e.g., listing, switching, and creating conversations), real-time progress summary feedback, and in-chat permission approvals using `/yes` or `/no`. For security, it enforces the configuration of an `allowFrom` whitelist, permitting only