Checkpoint before MCP server (Playwright) fixes

modular dora conversation server works with Moly client

Voice Chat Pipeline NumPy/SciPy Compatibility Fix

- Fixed 'All ufuncs must have type numpy.ufunc' error in PrimeSpeech node
- Resolved Python 3.12 compatibility issues with SciPy
- Updated all voice chat nodes with correct dependency versions

- Pin scipy to 1.11.x for Python 3.12 compatibility
- Add torchmetrics==1.0.0 to avoid scipy conflicts
- Enhanced dependency documentation with troubleshooting guide

- dora-primespeech
- dora-asr
- dora-speechmonitor
- dora-text-segmenter

This release ensures stable operation of the voice chat pipeline with Python 3.12 and prevents NumPy 2.0 from breaking scipy.special imports.