Fix DeepFace permissions by setting DEEPFACE_HOME to writable directory

app.py

@@ -1,8 +1,13 @@
 from fastapi import FastAPI, UploadFile, File, HTTPException
 from fastapi.middleware.cors import CORSMiddleware
+import os
 import cv2
 import mediapipe as mp
 import numpy as np
+
+# Set DeepFace home directory to writable location
+os.environ["DEEPFACE_HOME"] = "/tmp/.deepface"
+
 from deepface import DeepFace
 import base64
 from io import BytesIO