Update app.py

app.py

@@ -18,6 +18,11 @@ from models.llm_setup import setup_llm
 from indexes.csv_index_builder import EnhancedCSVReader
 from indexes.index_manager import CSVIndexManager
 from indexes.query_engine import CSVQueryEngine
+
+# Try a different import approach for tools
+tools_dir = os.path.join(current_dir, "tools")
+sys.path.append(tools_dir)
+
 from tools.data_tools import PandasDataTools
 from tools.visualization import VisualizationTools
 from tools.export import ExportTools