Add missing openai-whisper dependency

Complete rewrite: frozen deps from local env + Python 3.11 + no runtime installs

Fix: patch huggingface_hub.cached_download for Matcha-TTS compatibility

Fix: detect and repair gradio_client version conflict before import

Fix: reinstall gradio after CosyVoice deps to fix gradio_client version conflict

Fix: ensure gdown installed after CosyVoice deps + install Matcha-TTS deps

Add gdown dependency for flow_matching module

Switch to Docker SDK with Python 3.10 for compatibility

Fix: relax version constraints for HF Space Python compatibility

Initial deploy: CosyVoice3 multilingual voice cloning

initial commit