Update app.py

app.py

@@ -9,6 +9,7 @@ from unstructured.partition.pdf import partition_pdf
 from flask import Flask, request, jsonify
 from flask_cors import CORS
 from dotenv import load_dotenv
+from flask import send_from_directory, abort
 from bloatectomy import bloatectomy
 from werkzeug.utils import secure_filename
 from langchain_groq import ChatGroq