Use featherless-ai provider via HF Router — avoids dead api-inference DNS

Direct HF Inference API call (resolves inside HF network) + Qwen72B auto-fallback

Switch to Mistral-7B + Zephyr-7B (free HF Inference tier)

Switch to FastAPI Docker Space — no Gradio/pydub Python 3.13 issue

Fix: upgrade to Gradio 5 for Python 3.13 compatibility

Deploy Beryl Chat API - Gradio raw inference proxy