Connect DeepSeek Harness to QQ private chats and group chats with dsh-qqbot

The `dsh-qqbot` (@tencent-connect/dsh-qqbot, 0.4.0, MIT) maintained by Tencent Connect uses QQ as the IM frontend for DeepSeek Harness. It features isolated private chat and group chat sessions, QR code binding, and a default setting that group chats only respond when mentioned. This article verifies the installation commands, configuration items and usage of `/bot-reset` etc. against the directory page and GitHub README.