Update: purchase_page.py

Update: test_payment.py

Update: test_payment.py

Update: test_payment.py, db_client.py

Update: ci.yaml, purchase_page.py

Update: purchase_page.py

Update: purchase_page.py

Update: ci.yaml

Update: purchase_page.py

Update: ci.yaml

Update: ci.yaml

Update: ci.yaml

Update: ci.yaml

Update: ci.yaml

Update: ci.yaml

Update: ci.yaml

Update: ci.yaml

Update: ci.yaml

Update: ci.yaml

Update: ci.yaml