- Add lib/core/db_schema_version.dart with dbSchemaVersion constant (32) so both the data layer and UI layer share the same source of truth - Add device_info_plus dependency for Android/iOS device model display - Show Locale, Text Scale Factor, DB Schema Version, and Device Model (Android/iOS only) rows in the About screen diagnostic table - Device model is fetched asynchronously; the widget re-renders when ready - Update widget tests to assert the new rows are present Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>