fix: empty gr.State + api_name=False (workaround gradio_client schema bug)

fix: simplify UI to single page; no visibility toggling; plain-value returns

fix: bump to gradio 5.9.1 (HfFolder removed in new huggingface_hub)

fix: pin python 3.11 (avoid py3.13 audioop removal)

init: minimal Gradio annotation template (6 models, 3504 items)

initial commit