Update push-notification deep links for renamed screens

[christabel888]

Context: src/services/notifications.ts (push notifications) likely encodes deep links to specific screens -- these break silently if #36/#39 move screens without updating them.

Where:

• src/services/notifications.ts

What to do:

• Update any push-notification deep links referencing renamed/moved screens.

Suggested approach:

1. Cross-reference src/services/notifications.ts's deep-link targets against Update deep-link routes in RootNavigator.tsx to match new IA #39's updated route map.

Watch out for:

• A stale notification deep link fails silently or lands on the wrong screen for a user who taps a push notification days after it was sent -- this is easy to miss in testing since it only surfaces with real delayed notifications.

Definition of done:

• Push notifications deep-link correctly into the restructured navigation