Update app.py

app.py

@@ -23,7 +23,6 @@ from utils.database import (
     get_all_documents,
     get_collections,
     get_collection_documents,
-    initialize_qa_system,
     get_embeddings_model,
     verify_database_tables,
     create_collection,
@@ -34,9 +33,8 @@ from utils.database import (
     get_chat_messages,
     get_document_tags,
     add_document_tags,
-    delete_collection,
-    insert_document)
-
+    delete_collection)
+from utils.ai_utils import generate_document_tags, initialize_chat_system
 
 @dataclass
 class SessionState: