expose model load error in UI for diagnosis

bump sdk_version to 1.45.0 to resolve protobuf conflict

fix tensorflow-cpu version for Python 3.13

clean up UI

wire up FFN model — model_def, label map fix, TF requirement

upload model.keras via HF Hub API (Xet storage)

switch from Docker SDK to native Streamlit SDK

add headless and CORS flags for HF Spaces routing

remove HEALTHCHECK - conflicts with HF Spaces health monitoring

fix healthcheck start-period and copy data into image

remove tensorflow until model is ready - get space live

fix python and tensorflow-cpu version for HF build

working placeholder app with sample selector and phyphox tab

initial commit

Duplicate from streamlit/streamlit-template-space