Poor connection and offline behaviour

• Screens you have already opened keep showing their last data when the connection drops — the app does not go blank.
• Saving anything while offline shows a Save failed alert and puts the control back the way it was, so the app never pretends a change was saved.
• When the connection returns, just repeat the action; pull down on lists to refresh.

If the app seems stale after a long offline period, switch tabs or pull-to-refresh to reload.

This is deliberate: an app that silently queues a change you believe succeeded is worse than one that tells you it failed. If you did not see a confirmation, assume it did not save.