dsh-web-extras: DeepSeek Harness Web Interface Enhancement Plugin

dsh-web-extras is a browser-based extension designed specifically for DeepSeek Harness Web mode to address insufficient interactive interface feedback and the raw display of file changes. It provides three core features: first, sound effects and character portrait popups to alert users about session completion, tool approval requests, and AI prompts; second, appearance customization, including background image adjustments and UI opacity settings; third, a file-change view aggregated by turn, with line-level diff comparison and highlighting. The extension runs entirely locally, prioritizes privacy and security, and effectively enhances the debugging experience for AI agents.