pos changes

lib/domain/repositories/sync_repository.dart

@@ -39,6 +39,7 @@ class OrderSyncRow {
     required this.total,
     required this.createdAt,
     required this.isSynced,
+    this.itemCount = 0,
     this.syncedAt,
     this.attempts = 0,
     this.error,
@@ -49,6 +50,9 @@ class OrderSyncRow {
   final double total;
   final DateTime createdAt;
   final bool isSynced;
+
+  /// Units on the bill. Fractional because loose goods are sold by weight.
+  final double itemCount;
   final DateTime? syncedAt;
   final int attempts;
   final String? error;