- Created utils/device/torch_device_resolver.py with intelligent device detection
- Supports MPS (Metal Performance Shaders) for Apple Silicon
- Fallback chain: MPS > CUDA > CPU for auto-detection
- Safe detection with torch.backends.mps.is_available() checks
- Updated all 7 engine nodes to expose 'mps' device option:
- ChatterBox, F5-TTS, Higgs Audio, VibeVoice
- ChatterBox Official 23-Lang, Index TTS, RVC
- Integrated device resolver across all engine implementations:
- unified_model_interface.py (central point)
- comfyui_model_wrapper/base_wrapper.py (ComfyUI integration)
- All direct engine implementations (VibeVoice, Higgs Audio, F5-TTS edit, etc.)
- Maintains backward compatibility:
- Existing workflows unchanged
- MPS added as final option in device dropdowns
- No behavior changes for Linux/Windows users
Resolves#160 - Users on Apple Silicon can now select MPS for GPU acceleration
