dsh-codex-keychain: Unofficial ChatGPT OAuth provider for DeepSeek Harness

dsh-codex-keychain is an unofficial DSH plugin designed to address security authentication issues when integrating the OpenAI Codex model into DeepSeek Harness. Maintained by CpfPatrick and licensed under the MIT license, it is currently at version 0.1.0-alpha.1 developer preview, specifically adapted for DSH version 0.1.0-rc.6. Its core function is to add `openai-codex` model routing to DSH and enforce the saving of complete OAuth credentials in the operating system's native credential storage (such as macOS Keychain, Windows Credential Manager, or Linux Secret Service), strictly forbidden...