Major backend_update

8.7.20.54 added terminal print out function as a decorator to wrap up function and provide a terminal view for the code it executed.

8.7,19,50

3.3.12.35 added region_name in client in cloud_db.py for resolving huggingface space build error.

2.2.6.17 clean up articles.py and prompts.py for irrelevance. updated app.py and application.py for the cloud dynamodb functionality alignment.

1.1.4.13 update cloud functions and .gitignore.

0.0.1.2 migrated from the original app and updated here.