bugfix on upload data

src/app.py

@@ -211,6 +211,9 @@ if uploaded_file:
         report_data = json.load(uploaded_file)
         st.session_state.report_data = report_data
         st.session_state.df = flatten_report(report_data)
+        # Reset scatter plot file selection when new file is uploaded
+        if "selected_scatter_files" in st.session_state:
+            del st.session_state.selected_scatter_files
         st.sidebar.success("✅ Report loaded successfully!")
     except json.JSONDecodeError:
         st.sidebar.error("❌ Invalid JSON file")
@@ -634,6 +637,9 @@ else:
 
             st.session_state.report_data = sample_report
             st.session_state.df = flatten_report(sample_report)
+            # Reset scatter plot file selection when sample is loaded
+            if "selected_scatter_files" in st.session_state:
+                del st.session_state.selected_scatter_files
             st.success("✅ Sample data loaded! Refresh the page to see the analysis.")
             st.rerun()
         except FileNotFoundError: