Implement ComfyUI extra_model_paths.yaml support
Technical implementation:
- Add TtsExtraPathsManager for shared model directory integration
- Update unified downloader to respect configured model paths
- Enhance voice discovery with multi-path fallback support
- Integrate model manager with extra_model_paths.yaml system
- Support shared storage across multiple ComfyUI installations
- Maintain backward compatibility with existing setups
- Reference: GitHub issue #63
diodiogod
d1974c511f