IndexedDB and cloud sync engine to keep logs consistent across devices.

Backend & Sync Service

Define sync schema

Unit tests, UI tests, and end-to-end verification before App Store release.

Integrate Combine publishers to update the feed timer UI reactively during active sessions.

Create summary cards showing daily totals, averages, and next expected feed predictions.

Verify app compatibility, performance, and UI stability on iOS 16.6+ devices.

Provide a complication shortcut so parents can quickly start or view a feed directly from the Watch face.

Add snapshot tests to verify Watch UI layouts remain consistent during changes.

Handle conflicts when multiple devices edit the same feed entry, resolving with the most accurate data.

Write unit tests for SyncService to verify feeding logs sync correctly in different scenarios.

Test migration paths to ensure IndexedDB upgrades keep feeding logs safe and intact.