DeepSeek Harness Plugin: dsh-im-qq (QQ Official Bot Integration)

`dsh-im-qq` is a QQ bot plugin for DeepSeek Harness that enables bidirectional interaction between QQ message streams and Agent capabilities through an intermediate layer. The plugin supports private chat, group chat, and channel access, and includes core features such as session isolation, tool invocation, memory management, and security approval. Users need to configure their AppID and AppSecret, select a public bot, and add testers. After installation, they can interact with the bot using slash commands such as `/help` or inline buttons (✅/⭐/❌). It is recommended to enable sandbox mode, address 4009 disconnection/reconnection and message URL configuration issues, and keep the proactive message quota limit in mind.