dsh-chatgpt-web: Reusing ChatGPT Web Sessions via a Local Chrome Extension

`dsh-chatgpt-web` is an experimental DeepSeek Harness provider that allows users to run DSH through a logged-in ChatGPT Web account using a local Chrome extension, without requiring an API key. It implements features such as session management, FIFO serialization, interrupt synchronization, and safe recovery. The current version is in text mode and does not support tool calls or certain parameters, and it depends on the browser environment and ChatGPT's DOM structure.