Update app.py

app.py

@@ -3,8 +3,9 @@ from Bio import Entrez
 import os  # For environment variables and file paths
 from components import federated_learning
 
+# ---------------------------- Configuration ----------------------------
 ENTREZ_EMAIL = os.environ.get("ENTREZ_EMAIL", "ENTREZ_EMAIL") # Use environment variable, default fallback
-HUGGINGFACE_API_TOKEN = os.environ.get("HUGGINGFACE_API_TOKEN", "HUGGINGFACE_API_TOKEN") # Use environment variable, default fallback""
+HUGGINGFACE_API_TOKEN = os.environ.get("HUGGINGFACE_API_TOKEN", "HUGGINGFACE_API_TOKEN") # Use environment variable, default fallback
 
 # ---------------------------- Helper Functions ----------------------------