dsh-gsv-tts: DeepSeek Harness Text-to-Speech Plugin

The DeepSeek Harness voice reading plugin `dsh-gsv-tts` supports dual-mode speech synthesis: a cloud-based Edge mode for zero-configuration quick use, and a local GSV mode for offline voice cloning. Core features include one-click reading, automatic reading control, visual sound settings, voice marketplace downloads, and one-click engine start/stop management. It can be installed via the command line and allows one-click switching between the “Quick Experience” and “Local Professional” modes. Please note that Edge mode requires network access, while GSV mode requires a Python 3.10+ environment and may take additional time to load on first use.