dsh-voice-talk: Voice Conversation Plugin for DeepSeek Harness

`dsh-voice-talk` is the voice plugin for DeepSeek Harness, designed for hands-free use. Through full-screen voice interaction, it enables simultaneous speaking and listening, as well as real-time content generation and read-aloud. It supports Chinese and English, streaming interaction, and adjustable speech rate and voice timbre. Before using it, install host version 0.1.0-rc.7 or later and configure an Alibaba Cloud Bailian API Key to enable speech recognition and synthesis. Plugin keys are stored locally and follow the principle of least privilege, making it ideal for efficient use in Chrome or Edge browsers.