Add support for 'o1-preview' and 'o1-mini' model names in the OpenAI API. * **Update `models.json`**: - Add 'o1-preview' model details with appropriate parameters and metadata. - Add 'o1-mini' model details with appropriate parameters and metadata. --- For more details, open the [Copilot Workspace session](https://copilot-workspace.githubnext.com/janhq/jan?shareId=XXXX-XXXX-XXXX-XXXX).