scan to list working fine

lib/main.dart

@@ -1,19 +1,23 @@
-/// Application entry point: a single receipt-capture screen.
+/// Application entry point: capture a receipt, review line items, save products.
 library;
 
 import 'package:flutter/material.dart';
 
 import 'scan_screen.dart';
+import 'services/product_repository.dart';
 import 'utils/app_theme.dart';
 import 'utils/constants.dart';
 
 void main() {
   WidgetsFlutterBinding.ensureInitialized();
-  runApp(const ReceipityApp());
+  runApp(ReceipityApp());
 }
 
 class ReceipityApp extends StatelessWidget {
-  const ReceipityApp({super.key});
+  ReceipityApp({super.key, ProductRepository? repository})
+      : repository = repository ?? ProductRepository();
+
+  final ProductRepository repository;
 
   @override
   Widget build(BuildContext context) {
@@ -22,7 +26,7 @@ class ReceipityApp extends StatelessWidget {
       debugShowCheckedModeBanner: false,
       theme: AppTheme.light(),
       darkTheme: AppTheme.dark(),
-      home: const ScanScreen(),
+      home: ScanScreen(repository: repository),
     );
   }
 }