refactor: remove unused parser files and update ParsedReceiptItem model with additional fields

flutter/lib/features/import/domain/parsed_receipt_item.dart

@@ -3,25 +3,43 @@ class ParsedReceiptItem {
   final String rawName;
   final double? quantity;
   final String? unit;
-  final String? suggestedProductId;
+  final double? price;
+  final String? brand;
+  final String? origin;
+  // alias-match (säker, ingen bekräftelse behövs)
+  final int? matchedProductId;
+  final String? matchedProductName;
+  // ordbaserad match (kräver bekräftelse)
+  final int? suggestedProductId;
   final String? suggestedProductName;
-  final String? categorySuggestion;
+  // AI-kategorisuggestion (premium)
+  final String? categorySuggestionName;
 
   ParsedReceiptItem({
     required this.rawName,
     this.quantity,
     this.unit,
+    this.price,
+    this.brand,
+    this.origin,
+    this.matchedProductId,
+    this.matchedProductName,
     this.suggestedProductId,
     this.suggestedProductName,
-    this.categorySuggestion,
+    this.categorySuggestionName,
   });
 
   factory ParsedReceiptItem.fromJson(Map<String, dynamic> json) => ParsedReceiptItem(
-        rawName: json['rawName'] as String,
+        rawName: json['rawName'] as String? ?? '',
         quantity: (json['quantity'] as num?)?.toDouble(),
         unit: json['unit'] as String?,
-        suggestedProductId: json['suggestedProductId'] as String?,
+        price: (json['price'] as num?)?.toDouble(),
+        brand: json['brand'] as String?,
+        origin: json['origin'] as String?,
+        matchedProductId: (json['matchedProductId'] as num?)?.toInt(),
+        matchedProductName: json['matchedProductName'] as String?,
+        suggestedProductId: (json['suggestedProductId'] as num?)?.toInt(),
         suggestedProductName: json['suggestedProductName'] as String?,
-        categorySuggestion: json['categorySuggestion'] as String?,
+        categorySuggestionName: (json['categorySuggestion'] as Map<String, dynamic>?)?['categoryName'] as String?,
       );
 }