fixed variable type

app.py

@@ -98,7 +98,7 @@ if models_loaded:
                     
                         conf = max(0.0, min(1.0, (res['confidence'] + 0.1)))
                         st.markdown(f"**Option {i+1}**")
-                        st.progress(conf, text=f"Confidence: {conf*100:.1f}%")
+                        st.progress(float(conf), text=f"Confidence: {conf*100:.1f}%")
                         st.info(res['text'])
                         st.write("")