dsh-webops-plugin: DeepSeek Harness Web Operations and Debugging Plugin

This plugin is designed to provide DeepSeek Harness with comprehensive web debugging and manipulation capabilities. It addresses the cumbersome nature of browser environment operations through standalone windows, multi-tab management, and CDP/Electron support. Core features include element manipulation (clicking, filling, and scrolling), accessibility snapshots, console and network data collection, and advanced CDP command execution. The plugin supports portable desktop installation, employs a tab-exclusive mechanism, and offers a manual takeover mode. It provides agent developers with a fine-grained tool for controlling browser behavior.