- Introduce `SelfUseModeEnabled` setting to allow flexible model ratio configuration
- Update error handling to provide more informative messages when model ratios are not set
- Modify pricing and relay logic to support self-use mode
- Add UI toggle for enabling self-use mode in operation settings
- Implement fallback mechanism for model ratios when self-use mode is enabled
- Update error message for missing model ratio to be more user-friendly
- Modify ModelRatioNotSetEditor to filter models without price or ratio
- Enhance model data initialization with fallback values
