show discarded proteins in expander

ProtHGT_app.py

@@ -123,12 +123,31 @@ with st.sidebar:
 
                 if proteins_not_found:
                     st.warning(f"""
-                    The following proteins were not found in our input knowledge graph and have been discarded: {', '.join(proteins_not_found)}.  
+                    The following proteins were not found in our input knowledge graph and have been discarded: 
+                    """)
+                    with st.expander("View Discarded Proteins"):
+                        # Create scrollable container with fixed height
+                        st.markdown(
+                            f"""
+                            <div style="
+                                height: 150px; 
+                                overflow-y: scroll;
+                                border: 1px solid #ccc;
+                                border-radius: 4px;
+                                padding: 8px;
+                                margin-bottom: 16px;
+                                background-color: white;">
+                                {'<br>'.join(proteins_not_found)}
+                            </div>
+                            """, 
+                            unsafe_allow_html=True
+                        )
+                        
+                    st.warning(f"""
                     Currently, our system can only generate predictions for proteins that are already included in our knowledge graph. **Real-time retrieval of relationship data from external source databases is not yet supported.**  
                     We are actively working on integrating this capability in future updates. Stay tuned!
                     """)
     if selected_proteins:
-        # Option 1: Collapsible expander
         with st.expander("View Selected Proteins"):
             st.write(f"Total proteins selected: {len(selected_proteins)}")