Optional extras for heavy TTS dependencies #3
Description
Move torch/torchaudio/chatterbox-tts to optional extras in pyproject/requirements. Acceptance: base install works without heavy deps; 'pip install .[tts]' adds TTS extras.
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Move torch/torchaudio/chatterbox-tts to optional extras in pyproject/requirements. Acceptance: base install works without heavy deps; 'pip install .[tts]' adds TTS extras.