Update db.py

db.py

@@ -1,12 +1,8 @@
 import os
 from pymongo import MongoClient
 
-# Get secrets from Hugging Face
 MONGO_URI = os.getenv("MONGO_URI")
-DB_NAME = os.getenv("MONGO_DB", "course_feedback")  # default if not set
+DB_NAME = os.getenv("MONGO_DB", "course_feedback")
 
-# Connect to Mongo
 client = MongoClient(MONGO_URI)
-
-# Explicitly select database
 db = client[DB_NAME]