fix: UI polish — filmstrip height, how-it-works visible, cleaner CSS

fix: pin pydantic<2.10 to fix additionalProperties bool schema crash

fix: downgrade gradio to 4.31.5 (fixes json_schema bool crash)

fix: pin gradio==4.44.1 and huggingface_hub<1.0 for compatibility

🧞 Deploy MiniGenie — interactive flow matching world model demo

initial commit