Rules change:

• Cards initial value of 5 .. 16
• Cards may add or subtract to a card's power in hand or on the board
• Limited number of cards per player per row (initially 4 and easily modifiable)

Other technical objectives:

• Centralize configuration: have a single source of truth from which backend, frontend and e2e derive their configuration.
• Restructure and further develop e2e tests as a strong safety net that ensures a good interoperation between backend and frontend.