Implement server-side duplication for both assistants and credentials, allowing users to create copies with unique IDs and modified names. Update the respective API routes and frontend components to handle duplication requests, ensuring sensitive information is securely managed. Enhance the AssistantPage and ComponentsModelsPage to support this new feature, including loading and error handling for the duplication process.
Implement a new feature that allows users to create a copy of an existing assistant. The duplicate is inserted after the original, with the name suffixed by "副本" and the updated timestamp. Update the state management to handle the list of assistants accordingly, and add a dropdown menu item for triggering the duplication.
