- Filter engine node dropdown to only show valid Step Audio EditX models (those with CosyVoice vocoder)
- Prevents internal components like FunASR-Paraformer from appearing in model selection
- Add proper 'local:' prefix handling in adapter to resolve model paths correctly
- Respects extra_model_paths.yaml configuration for yaml-configured paths
- Fixes error when selecting 'local:Step-Audio-EditX' from dropdown