- Add SoraText2VideoNode for OpenAI Sora2 text-to-video generation
* Support both standard and Pro model variants
* Configurable video size, duration, and prompt parameters
* Pro version supports extended resolution options (1024x1792, 1792x1024)
- Add SoraImg2VideoNode for OpenAI Sora2 image-to-video generation
* Support both standard and Pro model variants
* Accept first frame as image or URL input
* Pro version supports 1080p resolution
- Implement async task polling with configurable retry logic
- Integrate with ModelverseClient for API communication
- Add comprehensive input validation and error handling
- Follow established video generation patterns from Vidu and Wan AI nodes