- Added tests for saving plain text and Chinese text directly, ensuring proper handling of content without data URI encoding.
- Updated the `parseDataURI` function to support plain text storage, returning the correct content type and data bytes.
- Improved the `getAssistants` method to support nested assistants, enhancing directory scanning for assistant pages.
- Refactored the `Page` method to accommodate assistant IDs with nested structures, improving route handling for pages.
