VoiceDNA v2.3 — PyPI Publish Prep + RVC-Ready Imprint Path

VoiceDNA v2.3 prepares the project for package publishing and future true voice-conversion integration.

• Added PyPI publish-prep tooling: requirements-dev.txt plus optional dev dependencies (build, twine, pytest)
• Bumped package version to 2.3.0 and refreshed install/docs sections
• Added RVC-ready mode stub in ImprintConverterFilter while keeping simple pydub mix as default
• Processor report now includes imprint converter RVC readiness metadata
• Continued local/cloud balance with Voicebox-first privacy path and cloud service demos

Validation run:

• pip install -e .
• voicedna --help
• python -m pytest -q
• python -m build
• twine check dist/*