DeepSeek Harness Plugin: Local Music Player

The DeepSeek Harness (DSH) local music player plugin aims to integrate playback functionality into the conversation view, offering a macOS Music-like interface with rich features. It uses FFmpeg for audio decoding, supports formats such as FLAC and MP3, and includes waveform display, a 10-band equalizer, online metadata completion, and ReplayGain loudness normalization. The system also supports video processing, lock screen controls, and cross-platform audio mixing. Installation requires Node.js, pnpm, and FFmpeg, and can be completed and debugged via CLI commands.