Update app.py

app.py

@@ -1,5 +1,4 @@
 # app.py
-
 import streamlit as st
 import os
 from pathlib import Path
@@ -14,6 +13,34 @@ from components.collection_manager import (
     display_enhanced_collections,
     display_collection_content
 )
+
+# Utils imports
+from utils.database import (
+    create_connection,
+    create_tables,
+    handle_document_upload,
+    verify_vector_store,
+    get_all_documents,
+    get_collections,
+    get_collection_documents
+)
+from utils.collections import (
+    create_collection_tables,
+    create_collection,
+    add_document_to_collection,
+    remove_from_collection,
+    update_collection
+)
+from utils.document_search import search_documents
+
+# Message types
+from langchain_core.messages import (
+    HumanMessage,
+    AIMessage,
+    SystemMessage,
+    BaseMessage
+)
+
 import time
 from threading import Lock