fix image similarity detection

src/streamlit_app.py

@@ -169,6 +169,7 @@ if query:
             st.warning("OpenAI API key not found. Please set OPENAI_API_KEY as a secret environment variable.")
 
 if uploaded_file is not None:
+    print('uploading file')
     print(uploaded_file)
     query_image = Image.open(uploaded_file).convert("RGB")
     st.image(query_image, caption="Your uploaded image", use_container_width=True)
@@ -192,5 +193,7 @@ if uploaded_file is not None:
         similar_img = data[int(idx)]['image']
         st.image(similar_img, caption=f"Similarity: {score:.3f}", use_container_width=True)
         st.markdown(f"**Case description:** {data[int(idx)]['complaints']}")
+else:
+    print("no image")
 
 st.caption("This chatbot is for educational purposes only and does not provide medical advice.")