dsh-plugin-agents-memory: Edit Global AGENTS.md in DeepSeek Harness Web Settings

`dsh-plugin-agents-memory` is a DeepSeek Harness Web plugin maintained by Cocowwy (MIT License), designed to allow users to edit the global `AGENTS.md` file without exiting the browser. The plugin adds a "Global Memory" feature in Web settings, supporting online reading, editing, and saving of global instructions and memory. Core features include auto-creation of the initial document, atomic writes, revision checks to prevent conflicts across multiple tabs, a file size limit of 256 KiB, and maintaining `0600` permissions. Environment requirements include Node.js 20+ and a local Web session, with access restricted to the loopback address for security. Installation simply requires executing the `dsh plugin` command and restarting the service, supporting import from GitHub.