Update app.py

app.py

@@ -83,7 +83,7 @@ def init_astra_db():
         astra_db_endpoint = os.getenv("ASTRA_DB_ENDPOINT", "https://8e3fd85c-5f28-4e1f-8538-9dd28a3ea2b0-us-east-2.apps.astra.datastax.com")
         
         # Initialize the client
-        client = DataAPIClient(api_endpoint=astra_db_endpoint, token=astra_db_application_token)
+        db = DataAPIClient(api_endpoint=astra_db_endpoint, token=astra_db_application_token)
         
         # Get or create collections
         product_embeddings = db.get_collection("product_embeddings")