DeepSeek Harness (DSH) Dedicated QQ Music Player Plugin

`dsh-tencent-music` is a QQ Music player plugin built for DeepSeek Harness (DSH). Through seamless Web UI integration and an intelligent Agent tool, it enables natural-language song selection, multi-quality audio playback, and playlist import. The plugin supports a VIP downgrade strategy to ensure a smooth playback queue, addressing the fragmentation of music services in the DSH environment and delivering a full-chain music control experience.