- Bundle VoiceFixer locally to avoid cache downloads
- Create voice_fixer_downloader for TTS/voicefixer/ model management
- Implement Voice Fixer node with 3 restoration modes (original, high-freq removal, train mode)
- Register node in nodes.py with proper error handling
- Patch bundled VoiceFixer hardcoded paths to use TTS/voicefixer/ directory
- Disable auto-download in restorer/__init__.py, handled by node instead
- Support lazy loading and CUDA acceleration
- All models download to organized TTS/ folder, never to cache