[Improvement] Improved account address state handling for countries without predefined states and preserved saved state values while editing addresses.
[Improvement] Simplified account address management with a single "Set as Default" flow and improved dashboard/address book refresh after add or edit actions.
[Improvement] Improved checkout saved-address synchronization, including refreshed address selection flows, separate billing and shipping selection handling, and interaction blocking while placing orders.
[Fixed] Fixed account default address updates by sending the full payload expected by the API.
[Fixed] Fixed checkout address book saving so separate billing and shipping addresses are preserved when they are different.
[Fixed] Fixed checkout address selection UI by removing address type badges and preserving separate shipping selections after manual address entry.