Fix build error: use local rvc_logic (cleaned)

Migrate RVC training to ultimate-rvc library (no fairseq needed)

HF adaptation: fix ZeroGPU requirements, launch(), README metadata + hardware:zero-gpu

Replace RVC with Seed-VC for zero-shot voice conversion

Upgrade to Gradio 5.12.0 for proper ZeroGPU authentication

Fix gradio 4.44.0 crashes: replace Dataframe with HTML + better patch

Fix gradio compatibility: upgrade to 4.44.1+ and set server_name

Initial commit: Clone Vocal RVC - web voice cloning tool