Update app.py

app.py

@@ -9,7 +9,7 @@ from langchain_chroma import Chroma
 from langchain_community.document_loaders import PyPDFLoader, TextLoader
 from langchain_core.documents import Document
 from langchain_huggingface import HuggingFaceEmbeddings
-from ultrultralytics import YOLO
+from ultralytics import YOLO
 
 # --- CONFIGURATION ---
 CHROMA_PATH = "/tmp/chroma_db"