Update main.py

main.py

@@ -34,7 +34,7 @@ from google.genai import types
 
 # MongoDB Configuration
 MONGO_PASSWORD = quote_plus(os.getenv("MONGO_PASSWORD"))
-MONGO_DATABASE_NAME = os.getenv("MONGO_DB_NAME")
+DATABASE_NAME = os.getenv("MONGO_DB_NAME")
 MONGO_URI = os.getenv("CONNECTION_STRING")
 CHAT_COLLECTION = "chat_history"
 USER_COLLECTION = "users"