feat: improve sms scan review and detail layouts

lib/controllers/sms_scan_controller.dart

@@ -39,14 +39,18 @@ class SmsScanController extends ChangeNotifier {
   String? get selectedPaymentCardId => _selectedPaymentCardId;
 
   final TextEditingController websiteUrlController = TextEditingController();
+  final TextEditingController serviceNameController = TextEditingController();
 
   // 의존성
   final SmsScanner _smsScanner = SmsScanner();
   final SubscriptionConverter _converter = SubscriptionConverter();
   final SubscriptionFilter _filter = SubscriptionFilter();
+  bool _forceServiceNameEditing = false;
+  bool get isServiceNameEditable => _forceServiceNameEditing;
 
   @override
   void dispose() {
+    serviceNameController.dispose();
     websiteUrlController.dispose();
     super.dispose();
   }
@@ -66,6 +70,16 @@ class SmsScanController extends ChangeNotifier {
 
   void resetWebsiteUrl() {
     websiteUrlController.text = '';
+    serviceNameController.text = '';
+  }
+
+  void updateCurrentServiceName(String value) {
+    if (_currentIndex >= _scannedSubscriptions.length) return;
+    final trimmed = value.trim();
+    final updated = _scannedSubscriptions[_currentIndex]
+        .copyWith(serviceName: trimmed.isEmpty ? '알 수 없는 서비스' : trimmed);
+    _scannedSubscriptions[_currentIndex] = updated;
+    notifyListeners();
   }
 
   Future<void> scanSms(BuildContext context) async {
@@ -215,6 +229,9 @@ class SmsScanController extends ChangeNotifier {
     if (_currentIndex >= _scannedSubscriptions.length) return;
 
     final subscription = _scannedSubscriptions[_currentIndex];
+    final inputName = serviceNameController.text.trim();
+    final resolvedServiceName =
+        inputName.isNotEmpty ? inputName : subscription.serviceName;
 
     try {
       final provider =
@@ -240,7 +257,7 @@ class SmsScanController extends ChangeNotifier {
 
       // addSubscription 호출
       await provider.addSubscription(
-        serviceName: subscription.serviceName,
+        serviceName: resolvedServiceName,
         monthlyCost: subscription.monthlyCost,
         billingCycle: subscription.billingCycle,
         nextBillingDate: subscription.nextBillingDate,
@@ -273,7 +290,9 @@ class SmsScanController extends ChangeNotifier {
   void moveToNextSubscription(BuildContext context) {
     _currentIndex++;
     websiteUrlController.text = '';
+    serviceNameController.text = '';
     _selectedCategoryId = null;
+    _forceServiceNameEditing = false;
     _prepareCurrentSelection(context);
 
     // 모든 구독을 처리했으면 홈 화면으로 이동
@@ -298,6 +317,8 @@ class SmsScanController extends ChangeNotifier {
     _selectedPaymentCardId = null;
     _currentSuggestion = null;
     _shouldSuggestCardCreation = false;
+    serviceNameController.clear();
+    _forceServiceNameEditing = false;
     notifyListeners();
   }
 
@@ -316,6 +337,13 @@ class SmsScanController extends ChangeNotifier {
       if (websiteUrlController.text.isEmpty && currentSub.websiteUrl != null) {
         websiteUrlController.text = currentSub.websiteUrl!;
       }
+      if (_shouldEnableServiceNameEditing(currentSub)) {
+        if (serviceNameController.text != currentSub.serviceName) {
+          serviceNameController.clear();
+        }
+      } else {
+        serviceNameController.text = currentSub.serviceName;
+      }
     }
   }
 
@@ -332,10 +360,18 @@ class SmsScanController extends ChangeNotifier {
     if (_currentIndex >= _scannedSubscriptions.length) {
       _selectedPaymentCardId = null;
       _currentSuggestion = null;
+      _forceServiceNameEditing = false;
+      serviceNameController.clear();
       return;
     }
 
     final current = _scannedSubscriptions[_currentIndex];
+    _forceServiceNameEditing = _shouldEnableServiceNameEditing(current);
+    if (_forceServiceNameEditing && current.serviceName == '알 수 없는 서비스') {
+      serviceNameController.clear();
+    } else {
+      serviceNameController.text = current.serviceName;
+    }
 
     // URL 기본값
     if (current.websiteUrl != null && current.websiteUrl!.isNotEmpty) {
@@ -392,4 +428,9 @@ class SmsScanController extends ChangeNotifier {
     }
     return null;
   }
+
+  bool _shouldEnableServiceNameEditing(Subscription subscription) {
+    final name = subscription.serviceName.trim();
+    return name.isEmpty || name == '알 수 없는 서비스';
+  }
 }