Update app.py

app.py

@@ -15,12 +15,12 @@ GCP_LOCATION = os.environ.get("GCP_LOCATION")
 # --- Authentication and Sanity Checks Block ---
 
 # Part A: Hugging Face Hub Authentication
-hf_token = os.environ.get("HF_TOKEN")
+hf_token = os.environ.get("IMAGEN_TOKEN")
 if hf_token:
     print("Hugging Face token found. Logging in.")
     login(token=hf_token)
 else:
-    print("WARNING: Hugging Face token ('HF_TOKEN') not found. Hub-related features may be disabled.")
+    print("WARNING: Hugging Face token ('IMAGEN_TOKEN') not found. Hub-related features may be disabled.")
 
 # Part B: Google Cloud Credentials and Initialization
 creds_json_str = os.environ.get("GOOGLE_APPLICATION_CREDENTIALS_JSON")