Integrate rutextnorm: normalize toggle + numeric example

Use default Gradio theme (drop Soft/Montserrat)

Move to gradio 5.49.1; unpin hub; OpenMP-safe env

Bind launch to 0.0.0.0:7860 for HF Spaces

Pin huggingface_hub<1.0 for gradio 4.44.1 compatibility

Pin python 3.10; robust dropdown choices

Dialogs-RU expressive Russian TTS — Gradio CPU demo

initial commit