Update app.py

app.py

@@ -13,7 +13,7 @@ from google.oauth2 import service_account
 # Upload credential json file from default compute service account
 #os.environ["GOOGLE_APPLICATION_CREDENTIALS"] = "herbaria-ai-3c860bcb0f44.json"
 
-credentials_raw = os.environ.get("GOOGLE_CREDENTIALS")
+credentials_raw = os.environ.get("google_authentication")
 if not credentials_raw:
     raise EnvironmentError("Google Cloud credentials not found in environment.")
 credentials_json = json.loads(credentials_raw)