feat: SMS 스캔 전면광고 및 Isolate 버그 수정

## 전면 광고 (AdService)
- AdService 클래스 신규 생성 (lunchpick 패턴 참조)
- Completer 패턴으로 광고 완료 대기 구현
- 로딩 오버레이로 앱 foreground 상태 유지
- 몰입형 모드 (immersiveSticky) 적용
- iOS 테스트 광고 ID 설정

## SMS 스캔 버그 수정
- Isolate 내 Flutter 바인딩 접근 오류 해결
- _isoExtractServiceNameFromSender()에서 하드코딩 사용
- 로딩 위젯 화면 정중앙 배치 수정

## 문서 및 설정
- CLAUDE.md 최적화 (글로벌 규칙 중복 제거)
- Claude Code Skills 5개 추가
  - flutter-build: 빌드/분석
  - hive-model: Hive 모델 관리
  - release-deploy: 릴리즈 배포
  - sms-scanner: SMS 스캔 디버깅
  - admob: 광고 구현

## 버전
- 1.0.1+2 → 1.0.1+3

.claude/skills/admob/SKILL.md

@@ -0,0 +1,89 @@
+---
+name: admob
+description: AdMob 전면 광고 구현 및 디버깅. 광고 표시, 로드 실패, foreground 이슈 시 사용.
+allowed-tools: Read, Edit, Grep
+---
+
+# AdMob Integration
+
+## 핵심 파일
+
+| 파일 | 역할 |
+|------|------|
+| `lib/services/ad_service.dart` | 전면 광고 서비스 |
+
+## 광고 ID
+
+| 플랫폼 | ID | 비고 |
+|--------|-----|------|
+| Android | `ca-app-pub-6691216385521068/5281562472` | 프로덕션 |
+| iOS | `ca-app-pub-3940256099942544/1033173712` | 테스트 |
+
+## Completer 패턴 (필수)
+
+광고 완료를 기다리려면 Completer 사용:
+
+```dart
+Future<bool> showInterstitialAd(BuildContext context) async {
+  final completer = Completer<bool>();
+
+  ad.fullScreenContentCallback = FullScreenContentCallback(
+    onAdDismissedFullScreenContent: (ad) {
+      ad.dispose();
+      completer.complete(true);
+    },
+    onAdFailedToShowFullScreenContent: (ad, error) {
+      ad.dispose();
+      completer.complete(false);
+    },
+  );
+
+  ad.show();
+  return completer.future;
+}
+```
+
+## "App not in foreground" 해결
+
+광고 로드 중 앱이 백그라운드로 가면 오류 발생.
+
+**해결책: 로딩 오버레이**
+
+```dart
+// 광고 로드 전 다이얼로그 표시 → 앱이 foreground 유지
+final closeLoading = _showLoadingOverlay(context);
+await _enterImmersiveMode();
+final loaded = await _ensureAdLoaded();
+closeLoading();
+```
+
+## 몰입형 모드
+
+```dart
+await SystemChrome.setEnabledSystemUIMode(
+  SystemUiMode.immersiveSticky,
+  overlays: [],
+);
+```
+
+## 흐름도
+
+```
+startScan()
+    ↓
+showLoadingOverlay() ← 앱 foreground 유지
+    ↓
+enterImmersiveMode()
+    ↓
+loadAd()
+    ↓
+closeOverlay()
+    ↓
+ad.show()
+    ↓
+await Completer.future ← 광고 완료 대기
+    ↓
+restoreSystemUI()
+    ↓
+continueWithScan()
+```

.claude/skills/flutter-build/SKILL.md

@@ -0,0 +1,39 @@
+---
+name: flutter-build
+description: Flutter 빌드 및 분석 수행. 앱 빌드, 릴리즈 APK/AAB 생성, 코드 분석 시 사용.
+allowed-tools: Bash, Read
+---
+
+# Flutter Build
+
+## 빌드 명령어
+
+```bash
+# 코드 분석
+flutter analyze
+
+# 디버그 빌드
+flutter run
+
+# 릴리즈 APK (디바이스 테스트용)
+flutter build apk --release
+
+# 릴리즈 AAB (Play Store용)
+flutter build appbundle --release
+
+# 디바이스 설치
+flutter install --release
+```
+
+## 빌드 전 체크리스트
+
+1. `flutter analyze` 통과 확인
+2. pubspec.yaml 버전 확인
+3. 필요시 `flutter clean` 실행
+
+## 출력 위치
+
+| 타입 | 경로 |
+|------|------|
+| APK | `build/app/outputs/flutter-apk/app-release.apk` |
+| AAB | `build/app/outputs/bundle/release/app-release.aab` |

.claude/skills/hive-model/SKILL.md

@@ -0,0 +1,55 @@
+---
+name: hive-model
+description: Hive 데이터 모델 생성 및 수정. 새 모델 추가, 필드 변경, typeId 관리 시 사용.
+allowed-tools: Bash, Read, Write, Edit, Glob
+---
+
+# Hive Model Management
+
+## 현재 모델 (typeId)
+
+| Model | typeId | 파일 |
+|-------|--------|------|
+| SubscriptionModel | 0 | `lib/models/subscription_model.dart` |
+| CategoryModel | 1 | `lib/models/category_model.dart` |
+| PaymentCardModel | 2 | `lib/models/payment_card_model.dart` |
+
+## 새 모델 생성 시
+
+```dart
+import 'package:hive/hive.dart';
+
+part 'new_model.g.dart';
+
+@HiveType(typeId: 3)  // 다음 사용 가능한 typeId
+class NewModel extends HiveObject {
+  @HiveField(0)
+  final String id;
+
+  @HiveField(1)
+  final String name;
+
+  NewModel({required this.id, required this.name});
+}
+```
+
+## 코드 생성
+
+모델 변경 후 반드시 실행:
+
+```bash
+dart run build_runner build --delete-conflicting-outputs
+```
+
+## 주의사항
+
+1. **typeId 충돌 금지**: 기존 typeId 재사용 불가
+2. **HiveField 순서**: 기존 필드 인덱스 변경 금지 (데이터 손실)
+3. **마이그레이션**: 필드 추가는 안전, 삭제/변경은 마이그레이션 필요
+
+## main.dart 등록
+
+```dart
+Hive.registerAdapter(NewModelAdapter());
+await Hive.openBox<NewModel>('newModelBox');
+```

.claude/skills/release-deploy/SKILL.md

@@ -0,0 +1,64 @@
+---
+name: release-deploy
+description: 앱 릴리즈 및 배포 프로세스. 버전업, 빌드, 디바이스 설치, Play Store AAB 생성 시 사용.
+allowed-tools: Bash, Read, Edit
+---
+
+# Release & Deploy
+
+## 버전 관리
+
+pubspec.yaml 버전 형식: `major.minor.patch+buildNumber`
+
+```yaml
+version: 1.0.1+3
+#        │ │ │ └─ 빌드번호 (내부 버전, 매 빌드마다 증가)
+#        │ │ └─── 패치 (버그 수정)
+#        │ └───── 마이너 (기능 추가)
+#        └─────── 메이저 (대규모 변경)
+```
+
+## 릴리즈 프로세스
+
+### 1. 버전 업데이트
+
+```bash
+# pubspec.yaml에서 버전 수정
+# 예: 1.0.1+3 → 1.0.1+4
+```
+
+### 2. 릴리즈 빌드
+
+```bash
+# APK (테스트용)
+flutter build apk --release
+
+# AAB (Play Store용)
+flutter build appbundle --release
+```
+
+### 3. 디바이스 설치
+
+```bash
+flutter install --release
+```
+
+## 전체 자동화
+
+```bash
+# 버전업 + APK 빌드 + 설치 + AAB 빌드
+flutter build apk --release && flutter install --release && flutter build appbundle --release
+```
+
+## Play Store 업로드
+
+1. AAB 파일: `build/app/outputs/bundle/release/app-release.aab`
+2. Google Play Console에서 업로드
+3. 릴리즈 노트 작성 (한국어/영어/일본어/중국어)
+
+## 체크리스트
+
+- [ ] 버전 번호 증가
+- [ ] `flutter analyze` 통과
+- [ ] 테스트 디바이스에서 확인
+- [ ] AAB 생성 완료

.claude/skills/sms-scanner/SKILL.md

@@ -0,0 +1,60 @@
+---
+name: sms-scanner
+description: SMS 스캔 기능 개발 및 디버깅. SMS 파싱, 구독 감지, Isolate 관련 이슈 시 사용.
+allowed-tools: Read, Edit, Grep, Glob
+---
+
+# SMS Scanner
+
+## 핵심 파일
+
+| 파일 | 역할 |
+|------|------|
+| `lib/services/sms_scanner.dart` | SMS 파싱 로직 (Isolate) |
+| `lib/controllers/sms_scan_controller.dart` | 스캔 플로우 제어 |
+| `lib/screens/sms_scan_screen.dart` | UI |
+| `lib/services/sms_scan/` | 보조 클래스 |
+
+## Isolate 주의사항
+
+`compute()` 내부에서 실행되는 함수는 별도 Isolate에서 실행됨.
+
+**접근 불가 항목:**
+
+- Flutter 바인딩 (`WidgetsBinding`)
+- `BuildContext`
+- `Provider`
+- `navigatorKey`
+- `AppLocalizations`
+
+**올바른 패턴:**
+
+```dart
+// Isolate 내부 함수 (접두사: _iso)
+String _isoExtractServiceName(String sender) {
+  if (RegExp(r'^\d+$').hasMatch(sender)) {
+    return 'Unknown service';  // 하드코딩 사용
+  }
+  return sender;
+}
+```
+
+**잘못된 패턴:**
+
+```dart
+String _isoExtractServiceName(String sender) {
+  // 오류: Isolate에서 Context 접근 불가
+  return AppLocalizations.of(context).unknownService;
+}
+```
+
+## 디버깅
+
+```bash
+# SMS 스캔 로그 확인
+flutter logs | grep -i "sms\|scan\|isolate"
+```
+
+## 테스트 데이터
+
+`lib/temp/test_sms_data.dart`에 테스트용 SMS 데이터 정의됨.

CLAUDE.md

@@ -1,314 +1,111 @@
-# Claude 프로젝트 컨텍스트
+# CLAUDE.md
 
-## 언어 설정
+프로젝트별 가이드. 일반 규칙은 `~/.claude/CLAUDE.md` 참조.
-- 모든 답변은 한국어로 제공
-- 기술 용어는 영어와 한국어 병기 가능
 
-## 프로젝트 정보
+## Project Overview
-- Flutter 기반 구독 관리 앱 (SubManager)
 
-## 현재 작업
+**SubManager** - 구독 관리 앱 (Flutter 3.x)
-- 구독카드가 클릭이 되지 않아서 문제를 찾는 중.
 
-## 🎯 Mandatory Response Format
+| 항목 | 기술 |
+|------|------|
+| DB | Hive (로컬 전용) |
+| 상태관리 | Provider + ChangeNotifier |
+| 디자인 | Material 3 |
+| 광고 | google_mobile_ads |
 
-Before starting any task, you MUST respond in the following format:
+**버전**: 1.0.1+3
 
-```
+## Quick Commands
-[Model Name]. I have reviewed all the following rules: [rule file list or categories]. Proceeding with the task. Master!
+
+```bash
+# Hive 모델 생성
+dart run build_runner build --delete-conflicting-outputs
+
+# 빌드
+flutter build apk --release           # APK
+flutter build appbundle --release     # AAB (Play Store)
+
+# 버전업 후 디바이스 설치
+flutter install --release
 ```
 
-**Examples:**
+## Architecture
 
-- `Claude Sonnet 4. I have reviewed all the following rules: development guidelines, class structure, testing rules. Proceeding with the task. Master!`
+```text
-- For extensive rules: `coding style, class design, exception handling, testing rules` (categorized summary)
+lib/
-
+├── controllers/     # 비즈니스 로직 (3개)
-## 🚀 Mandatory 3-Phase Task Process
+│   ├── add_subscription_controller.dart
-
+│   ├── detail_screen_controller.dart
-### Phase 1: Codebase Exploration & Analysis
+│   └── sms_scan_controller.dart
-
+├── models/          # Hive 모델 (@HiveType)
-**Required Actions:**
+│   ├── subscription_model.dart    (typeId: 0)
-
+│   ├── category_model.dart        (typeId: 1)
-- Systematically discover ALL relevant files, directories, modules
+│   └── payment_card_model.dart    (typeId: 2)
-- Search for related keywords, functions, classes, patterns
+├── providers/       # ChangeNotifier 상태관리
-- Thoroughly examine each identified file
+├── screens/         # 화면 위젯
-- Document coding conventions and style guidelines
+├── services/        # 외부 서비스 연동
-- Identify framework/library usage patterns
+├── widgets/         # 재사용 컴포넌트
-
+├── utils/           # 유틸리티 헬퍼
-### Phase 2: Implementation Planning
+├── routes/          # 라우팅 정의
-
+├── theme/           # 테마/색상
-**Required Actions:**
+└── l10n/            # 다국어 (ko/en/ja/zh)
-
-- Create detailed implementation roadmap based on Phase 1 findings
-- Define specific task lists and acceptance criteria per module
-- Specify performance/quality requirements
-
-### Phase 3: Implementation Execution
-
-**Required Actions:**
-
-- Implement each module following Phase 2 plan
-- Verify ALL acceptance criteria before proceeding
-- Ensure adherence to conventions identified in Phase 1
-
-## ✅ Core Development Principles
-
-### Language & Type Rules
-
-- **Write ALL code, variables, and names in English**
-- **Write ALL comments, documentation, prompts, and responses in Korean**
-- **Always declare types explicitly** for variables, parameters, and return values
-- Avoid `any`, `dynamic`, or loosely typed declarations (except when strictly necessary)
-- Define **custom types** when needed
-- Extract magic numbers and literals into named constants or enums
-
-### Naming Conventions
-
-|Element|Style|Example|
-|---|---|---|
-|Classes|`PascalCase`|`UserService`, `DataRepository`|
-|Variables/Methods|`camelCase`|`userName`, `calculateTotal`|
-|Files/Folders|`under_score_case`|`user_service.dart`, `data_models/`|
-|Environment Variables|`UPPERCASE`|`API_URL`, `DATABASE_PASSWORD`|
-
-**Critical Rules:**
-
-- **Boolean variables must be verb-based**: `isReady`, `hasError`, `canDelete`
-- **Function/method names start with verbs**: `executeLogin`, `saveUser`
-- Use meaningful, descriptive names
-- Avoid abbreviations unless widely accepted: `i`, `j`, `err`, `ctx`, `API`, `URL`
-
-## 🔧 Function & Method Design
-
-### Function Structure Principles
-
-- **Keep functions short and focused** (≤20 lines recommended)
-- **Avoid blank lines inside functions**
-- **Follow Single Responsibility Principle**
-- **Use verb + object format** for naming:
-    - Boolean return: `isValid`, `canRetry`, `hasPermission`
-    - Void return: `executeLogin`, `saveUser`, `startAnimation`
-
-### Function Optimization Techniques
-
-- Use **early returns** to avoid nested logic
-- Extract logic into helper functions
-- Prefer **arrow functions** for short expressions (≤3 lines)
-- Use **named functions** for complex logic
-- Minimize null checks by using **default values**
-- Minimize parameters using **RO-RO pattern** (Receive Object – Return Object)
-
-## 📦 Data & Class Design
-
-### Class Design Principles
-
-- **Strictly follow Single Responsibility Principle (SRP)**
-- **Favor composition over inheritance**
-- **Define interfaces/abstract classes** to establish contracts
-- **Prefer immutable data structures** (use `readonly`, `const`)
-
-### File Size Management
-
-- **Split by responsibility when exceeding 200 lines** (responsibility-based, not line-based)
-- ✅ **May remain as-is if**:
-    - Has **single clear responsibility**
-    - Is **easy to maintain**
-- 🔁 **Must split when**:
-    - Contains **multiple concerns**
-    - Requires **excessive scrolling**
-    - Patterns repeat across files
-    - Difficult for new developer onboarding
-
-### Class Recommendations
-
-- ≤ 200 lines (not mandatory)
-- ≤ 10 public methods
-- ≤ 10 properties
-
-### Data Model Design
-
-- Avoid excessive use of primitives — use **composite types or classes**
-- Move **validation logic inside data models** (not in business logic)
-
-## ❗ Exception Handling
-
-### Exception Usage Principles
-
-- Use exceptions only for **truly unexpected or critical issues**
-- **Catch exceptions only to**:
-    - Handle known failure scenarios
-    - Add useful context
-- Otherwise, let global handlers manage them
-
-## 🧪 Testing
-
-### Test Structure
-
-- Follow **Arrange–Act–Assert** pattern
-- Clear test variable naming: `inputX`, `mockX`, `actualX`, `expectedX`
-- **Write unit tests for every public method**
-
-### Test Doubles Usage
-
-- Use **test doubles** (mock/fake/stub) for dependencies
-- Exception: allow real use of **lightweight third-party libraries**
-
-### Integration Testing
-
-- Write **integration tests per module**
-- Follow **Given–When–Then** structure
-- Ensure **100% test pass rate in CI** and **apply immediate fixes** for failures
-
-## 📝 Git Commit Guidelines
-
-### Commit Message Format
-
-- **Use clear, descriptive commit messages in Korean**
-- **Follow conventional commit format**: `type: description`
-- **Keep commit messages concise and focused**
-- **DO NOT include Claude Code attribution or co-author tags**
-
-### Commit Message Structure
-
-```
-type: brief description in Korean
-
-Optional detailed explanation if needed
 ```
 
-### Commit Types
+## Key Services
 
-- `feat`: 새로운 기능 추가
+| Service | 역할 |
-- `fix`: 버그 수정
+|---------|------|
-- `refactor`: 코드 리팩토링
+| `AdService` | 전면 광고 (Completer 패턴) |
-- `style`: 코드 스타일 변경 (formatting, missing semi-colons, etc)
+| `SmsScanner` | SMS 파싱 → 구독 자동 감지 (Isolate 사용) |
-- `docs`: 문서 변경
+| `NotificationService` | 로컬 알림 |
-- `test`: 테스트 코드 추가 또는 수정
+| `ExchangeRateService` | 환율 조회 |
-- `chore`: 빌드 프로세스 또는 보조 도구 변경
+| `url_matcher/` | 서비스명 → URL 매칭 |
 
-### Examples
+## Routes
 
-✅ **Good Examples:**
+| Path | Screen |
-- `feat: 월별 차트 다국어 지원 추가`
+|------|--------|
-- `fix: 분석화면 총지출 금액 불일치 문제 해결`
+| `/` | MainScreen |
-- `refactor: 통화 변환 로직 모듈화`
+| `/add-subscription` | AddSubscriptionScreen |
+| `/subscription-detail` | DetailScreen (requires SubscriptionModel) |
+| `/sms-scanner` | SmsScanScreen |
+| `/analysis` | AnalysisScreen |
+| `/settings` | SettingsScreen |
+| `/payment-card-management` | PaymentCardManagementScreen |
 
-❌ **Avoid These:**
+## Project Rules
-- Including "🤖 Generated with [Claude Code](https://claude.ai/code)"
-- Including "Co-Authored-By: Claude <noreply@anthropic.com>"
-- Vague messages like "update code" or "fix stuff"
-- English commit messages (use Korean)
 
-### Critical Rules
+1. **로컬 전용**: 서버/Firebase/외부 DB 금지
+2. **권한 거부 시**: 수동 입력 폴백 (SMS), 기능 비활성화 (알림)
+3. **외부 API**: Clearbit Logo API만 허용
+4. **Isolate 주의**: `compute()` 내부에서 Flutter 바인딩/Context 접근 불가
 
-- **NEVER include AI tool attribution in commit messages**
+## Known Patterns
-- **Focus on what was changed and why**
-- **Use present tense and imperative mood**
-- **Keep the first line under 50 characters when possible**
 
-## 🧠 Error Analysis & Rule Documentation
+### 전면 광고 (AdService)
 
-### Mandatory Process When Errors Occur
+```dart
-
+// Completer 패턴으로 광고 완료 대기
-1. **Analyze root cause in detail**
+final completer = Completer<bool>();
-2. **Document preventive rule in `.cursor/rules/error_analysis.mdc`**
+ad.fullScreenContentCallback = FullScreenContentCallback(
-3. **Write in English including**:
+  onAdDismissedFullScreenContent: (ad) {
-    - Error description and context
+    completer.complete(true);
-    - Cause and reproducibility steps
+  },
-    - Resolution approach
+);
-    - Rule for preventing future recurrences
+ad.show();
-    - Sample code and references to related rules
+return completer.future;
-
-### Rule Writing Standards
-
-```markdown
----
-description: Clear, one-line description of what the rule enforces
-globs: path/to/files/*.ext, other/path/**/*
-alwaysApply: boolean
----
-
-**Main Points in Bold**
-- Sub-points with details
-- Examples and explanations
 ```
 
-## 🏗️ Architectural Guidelines
+### SMS 스캔 (Isolate)
 
-### Clean Architecture Compliance
+```dart
+// Isolate 내부에서는 하드코딩 사용
+// Flutter 바인딩, Context, Provider 접근 불가
+return 'Unknown service';  // AppLocalizations 사용 불가
+```
 
-- **Layered structure**: `modules`, `controllers`, `services`, `repositories`, `entities`
+## Response Format
-- Apply **Repository Pattern** for data abstraction
-- Use **Dependency Injection** (`getIt`, `inject`, etc.)
-- Controllers handle business logic (not view processing)
 
-### Code Structuring
+```text
-
+[모델명]. I have reviewed all the following rules: [규칙]. Proceeding with the task. Master!
-- **One export or public declaration per file**
+```
-- Centralize constants, error messages, and configuration
-- Make **all shared logic reusable** and place in dedicated helper modules
-
-## 🌲 UI Structure & Component Design
-
-### UI Optimization Principles
-
-- **Avoid deeply nested widget/component trees**:
-    - Flatten hierarchy for **better performance and readability**
-    - Easier **state management and testability**
-- **Split large components into small, focused widgets/components**
-- Use `const` constructors (or equivalents) for performance optimization
-- Apply clear **naming and separation** between view, logic, and data layers
-
-## 📈 Continuous Rule Improvement
-
-### Rule Improvement Triggers
-
-- New code patterns not covered by existing rules
-- Repeated similar implementations across files
-- Common error patterns that could be prevented
-- New libraries or tools being used consistently
-- Emerging best practices in the codebase
-
-### Rule Update Criteria
-
-**Add New Rules When:**
-
-- A new technology/pattern is used in 3+ files
-- Common bugs could be prevented by a rule
-- Code reviews repeatedly mention the same feedback
-
-**Modify Existing Rules When:**
-
-- Better examples exist in the codebase
-- Additional edge cases are discovered
-- Related rules have been updated
-
-## ✅ Quality Validation Checklist
-
-Before completing any task, confirm:
-
-- ✅ All three phases completed sequentially
-- ✅ Each phase output meets specified format requirements
-- ✅ Implementation satisfies all acceptance criteria
-- ✅ Code quality meets professional standards
-- ✅ Started with mandatory response format
-- ✅ All naming conventions followed
-- ✅ Type safety ensured
-- ✅ Single Responsibility Principle adhered to
-
-## 🎯 Success Validation Framework
-
-### Expert-Level Standards Verification
-
-- **Minimalistic Approach**: High-quality, clean solutions without unnecessary complexity
-- **Professional Standards**: Every output meets industry-standard software engineering practices
-- **Concrete Results**: Specific, actionable details at each step
-
-### Final Quality Gates
-
-- [ ] All acceptance criteria validated
-- [ ] Code follows established conventions
-- [ ] Minimalistic approach maintained
-- [ ] Expert-level implementation standards met
-- [ ] Korean comments and documentation provided
-- [ ] English code and variable names used consistently

lib/controllers/sms_scan_controller.dart

@@ -1,21 +1,22 @@
 import 'package:flutter/material.dart';
+import 'package:flutter/foundation.dart' show kIsWeb;
+import 'package:provider/provider.dart';
+import 'package:permission_handler/permission_handler.dart' as permission;
+import 'dart:io' show Platform;
+
 import '../services/sms_scanner.dart';
-import '../models/subscription.dart';
+import '../services/ad_service.dart';
-import '../models/payment_card_suggestion.dart';
 import '../services/sms_scan/subscription_converter.dart';
 import '../services/sms_scan/subscription_filter.dart';
 import '../services/sms_scan/sms_scan_result.dart';
+import '../models/subscription.dart';
+import '../models/payment_card_suggestion.dart';
 import '../providers/subscription_provider.dart';
-import 'package:provider/provider.dart';
-import 'package:flutter/foundation.dart' show kIsWeb;
-import 'package:permission_handler/permission_handler.dart' as permission;
-import '../utils/logger.dart';
 import '../providers/navigation_provider.dart';
 import '../providers/category_provider.dart';
-import '../l10n/app_localizations.dart';
 import '../providers/payment_card_provider.dart';
-import 'package:google_mobile_ads/google_mobile_ads.dart';
+import '../l10n/app_localizations.dart';
-import 'dart:io' show Platform;
+import '../utils/logger.dart';
 
 class SmsScanController extends ChangeNotifier {
   // 상태 관리
@@ -47,10 +48,9 @@ class SmsScanController extends ChangeNotifier {
   final SmsScanner _smsScanner = SmsScanner();
   final SubscriptionConverter _converter = SubscriptionConverter();
   final SubscriptionFilter _filter = SubscriptionFilter();
+  final AdService _adService = AdService();
   bool _forceServiceNameEditing = false;
   bool get isServiceNameEditable => _forceServiceNameEditing;
-  bool _isAdInProgress = false;
-  bool get isAdInProgress => _isAdInProgress;
 
   @override
   void dispose() {
@@ -87,69 +87,26 @@ class SmsScanController extends ChangeNotifier {
     notifyListeners();
   }
 
+  /// SMS 스캔 시작 (전면 광고 표시 후 스캔 진행)
   Future<void> startScan(BuildContext context) async {
     if (_isLoading) return;
-    _isAdInProgress = true;
+
-    notifyListeners();
     // 웹/비지원 플랫폼은 바로 스캔
     if (kIsWeb || !(Platform.isAndroid || Platform.isIOS)) {
-      _isAdInProgress = false;
-      notifyListeners();
       await scanSms(context);
       return;
     }
 
-    // 전면 광고 로드 및 노출 후 스캔 진행
+    // 광고 표시 (완료까지 대기)
-    try {
+    // 광고 실패해도 스캔 진행 (사용자 경험 우선)
-      await InterstitialAd.load(
+    await _adService.showInterstitialAd(context);
-        adUnitId: _interstitialAdUnitId(),
-        request: const AdRequest(),
-        adLoadCallback: InterstitialAdLoadCallback(
-          onAdLoaded: (ad) {
-            ad.fullScreenContentCallback = FullScreenContentCallback(
-              onAdDismissedFullScreenContent: (ad) {
-                ad.dispose();
-                _startSmsScanIfMounted(context);
-              },
-              onAdFailedToShowFullScreenContent: (ad, error) {
-                ad.dispose();
-                _fallbackAfterDelay(context);
-              },
-            );
-            ad.show();
-          },
-          onAdFailedToLoad: (error) {
-            _fallbackAfterDelay(context);
-          },
-        ),
-      );
-    } catch (e) {
-      Log.e('전면 광고 로드 중 오류, 바로 스캔 진행', e);
-      if (!context.mounted) return;
-      _fallbackAfterDelay(context);
-    }
-  }
 
-  String _interstitialAdUnitId() {
-    if (Platform.isAndroid || Platform.isIOS) {
-      return 'ca-app-pub-6691216385521068~6638409932';
-    }
-    return '';
-  }
-
-  Future<void> _startSmsScanIfMounted(BuildContext context) async {
     if (!context.mounted) return;
-    _isAdInProgress = false;
+
-    notifyListeners();
+    // 광고 완료 후 SMS 스캔 실행
     await scanSms(context);
   }
 
-  Future<void> _fallbackAfterDelay(BuildContext context) async {
-    await Future.delayed(const Duration(seconds: 5));
-    if (!context.mounted) return;
-    await _startSmsScanIfMounted(context);
-  }
-
   Future<void> scanSms(BuildContext context) async {
     _isLoading = true;
     _errorMessage = null;
@@ -157,6 +114,11 @@ class SmsScanController extends ChangeNotifier {
     _currentIndex = 0;
     notifyListeners();
 
+    await _performSmsScan(context);
+  }
+
+  /// 실제 SMS 스캔 수행 (로딩 상태는 이미 설정되어 있음)
+  Future<void> _performSmsScan(BuildContext context) async {
     try {
       // Android에서 SMS 권한 확인 및 요청
       final ctx = context;
@@ -399,13 +361,14 @@ class SmsScanController extends ChangeNotifier {
     return otherCategory.id;
   }
 
-  void initializeWebsiteUrl() {
+  void initializeWebsiteUrl(BuildContext context) {
     if (_currentIndex < _scannedSubscriptions.length) {
       final currentSub = _scannedSubscriptions[_currentIndex];
       if (websiteUrlController.text.isEmpty && currentSub.websiteUrl != null) {
         websiteUrlController.text = currentSub.websiteUrl!;
       }
-      if (_shouldEnableServiceNameEditing(currentSub)) {
+      final unknownLabel = _unknownServiceLabel(context);
+      if (_shouldEnableServiceNameEditing(currentSub, unknownLabel)) {
         if (serviceNameController.text != currentSub.serviceName) {
           serviceNameController.clear();
         }

lib/screens/sms_scan_screen.dart

@@ -47,7 +47,7 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
-    _controller.initializeWebsiteUrl();
+    _controller.initializeWebsiteUrl(context);
   }
 
   Widget _buildContent() {
@@ -161,9 +161,12 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
 
   @override
   Widget build(BuildContext context) {
-    return Stack(
+    // 로딩 중일 때는 화면 정중앙에 표시
-      children: [
+    if (_controller.isLoading) {
-        SingleChildScrollView(
+      return const ScanLoadingWidget();
+    }
+
+    return SingleChildScrollView(
       controller: _scrollController,
       padding: EdgeInsets.zero,
       child: Padding(
@@ -178,66 +181,6 @@ class _SmsScanScreenState extends State<SmsScanScreen> {
           ],
         ),
       ),
-        ),
-        if (_controller.isAdInProgress)
-          Positioned.fill(
-            child: IgnorePointer(
-              child: Stack(
-                children: [
-                  Container(
-                    color: Theme.of(context)
-                        .colorScheme
-                        .surface
-                        .withValues(alpha: 0.4),
-                  ),
-                  Center(
-                    child: DecoratedBox(
-                      decoration: BoxDecoration(
-                        color: Theme.of(context)
-                            .colorScheme
-                            .surfaceContainerHighest
-                            .withValues(alpha: 0.9),
-                        borderRadius: BorderRadius.circular(16),
-                      ),
-                      child: Padding(
-                        padding: const EdgeInsets.symmetric(
-                            horizontal: 20, vertical: 16),
-                        child: Row(
-                          mainAxisSize: MainAxisSize.min,
-                          children: [
-                            SizedBox(
-                              width: 18,
-                              height: 18,
-                              child: CircularProgressIndicator(
-                                strokeWidth: 2,
-                                valueColor: AlwaysStoppedAnimation<Color>(
-                                  Theme.of(context).colorScheme.primary,
-                                ),
-                              ),
-                            ),
-                            const SizedBox(width: 12),
-                            Text(
-                              AppLocalizations.of(context).scanningMessages,
-                              style: Theme.of(context)
-                                  .textTheme
-                                  .titleMedium
-                                  ?.copyWith(
-                                    color:
-                                        Theme.of(context).colorScheme.onSurface,
-                                    fontWeight: FontWeight.w700,
-                                  ),
-                              textAlign: TextAlign.center,
-                            ),
-                          ],
-                        ),
-                      ),
-                    ),
-                  ),
-                ],
-              ),
-            ),
-          ),
-      ],
     );
   }
 }

lib/services/ad_service.dart

@@ -0,0 +1,195 @@
+import 'dart:async';
+
+import 'package:flutter/foundation.dart' show kIsWeb;
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:google_mobile_ads/google_mobile_ads.dart';
+import 'dart:io' show Platform;
+
+import '../utils/logger.dart';
+
+/// 전면 광고(Interstitial Ad) 서비스
+/// lunchpick 프로젝트의 AdService 패턴을 참조하여 구현
+class AdService {
+  InterstitialAd? _interstitialAd;
+  Completer<bool>? _loadingCompleter;
+
+  /// 모바일 플랫폼 여부 확인
+  bool get _isMobilePlatform {
+    if (kIsWeb) return false;
+    return Platform.isAndroid || Platform.isIOS;
+  }
+
+  /// 전면 광고 Unit ID 반환
+  String get _interstitialAdUnitId {
+    if (Platform.isAndroid) {
+      return 'ca-app-pub-6691216385521068/5281562472';
+    } else if (Platform.isIOS) {
+      // iOS 테스트 광고 ID
+      return 'ca-app-pub-3940256099942544/1033173712';
+    }
+    return '';
+  }
+
+  /// 광고를 로드하고 표시한 뒤 완료 여부를 반환
+  /// true: 광고 시청 완료 또는 미지원 플랫폼
+  /// false: 광고 로드/표시 실패
+  Future<bool> showInterstitialAd(BuildContext context) async {
+    if (!_isMobilePlatform) return true;
+
+    Log.i('광고 표시 시작');
+
+    // 1. 로딩 오버레이 표시 (앱이 foreground 상태 유지)
+    final closeLoading = _showLoadingOverlay(context);
+
+    // 2. 몰입형 모드 진입
+    await _enterImmersiveMode();
+
+    // 3. 광고 로드
+    final loaded = await _ensureAdLoaded();
+
+    // 4. 로딩 오버레이 닫기
+    closeLoading();
+
+    if (!loaded) {
+      Log.w('광고 로드 실패, 건너뜀');
+      await _restoreSystemUi();
+      return false;
+    }
+
+    final ad = _interstitialAd;
+    if (ad == null) {
+      Log.w('광고 인스턴스 없음, 건너뜀');
+      await _restoreSystemUi();
+      return false;
+    }
+
+    // 현재 광고를 null로 설정 (다음 광고 미리로드)
+    _interstitialAd = null;
+
+    final completer = Completer<bool>();
+
+    ad.fullScreenContentCallback = FullScreenContentCallback(
+      onAdShowedFullScreenContent: (ad) {
+        Log.i('전면 광고 표시됨 (콜백)');
+      },
+      onAdDismissedFullScreenContent: (ad) {
+        Log.i('전면 광고 닫힘 (콜백)');
+        ad.dispose();
+        _preload();
+        unawaited(_restoreSystemUi());
+        if (!completer.isCompleted) {
+          completer.complete(true);
+        }
+      },
+      onAdFailedToShowFullScreenContent: (ad, error) {
+        Log.e('전면 광고 표시 실패 (콜백)', error);
+        ad.dispose();
+        _preload();
+        unawaited(_restoreSystemUi());
+        if (!completer.isCompleted) {
+          completer.complete(false);
+        }
+      },
+    );
+
+    // 전체 화면으로 표시하도록 immersive 모드 설정
+    ad.setImmersiveMode(true);
+
+    Log.i('ad.show() 호출 직전');
+    try {
+      ad.show();
+      Log.i('ad.show() 호출 완료');
+    } catch (e) {
+      Log.e('광고 show() 호출 실패', e);
+      unawaited(_restoreSystemUi());
+      if (!completer.isCompleted) {
+        completer.complete(false);
+      }
+      return false;
+    }
+
+    // 타임아웃 설정 (15초 후 자동 건너뜀)
+    return completer.future.timeout(
+      const Duration(seconds: 15),
+      onTimeout: () {
+        Log.w('광고 표시 타임아웃, 건너뜀');
+        unawaited(_restoreSystemUi());
+        return false;
+      },
+    );
+  }
+
+  /// 로딩 오버레이 표시 (앱이 foreground 상태 유지)
+  VoidCallback _showLoadingOverlay(BuildContext context) {
+    final navigator = Navigator.of(context, rootNavigator: true);
+    showDialog<void>(
+      context: context,
+      barrierDismissible: false,
+      barrierColor: Colors.black.withValues(alpha: 0.35),
+      builder: (_) => const Center(child: CircularProgressIndicator()),
+    );
+    return () {
+      if (navigator.mounted && navigator.canPop()) {
+        navigator.pop();
+      }
+    };
+  }
+
+  /// 몰입형 모드 진입 (상하단 시스템 UI 숨김)
+  Future<void> _enterImmersiveMode() async {
+    try {
+      await SystemChrome.setEnabledSystemUIMode(
+        SystemUiMode.immersiveSticky,
+        overlays: [],
+      );
+    } catch (_) {}
+  }
+
+  /// UI 복구
+  Future<void> _restoreSystemUi() async {
+    try {
+      await SystemChrome.setEnabledSystemUIMode(SystemUiMode.edgeToEdge);
+    } catch (_) {}
+  }
+
+  /// 광고 로드 보장 (이미 로드된 경우 즉시 반환)
+  Future<bool> _ensureAdLoaded() async {
+    if (_interstitialAd != null) return true;
+
+    if (_loadingCompleter != null) {
+      return _loadingCompleter!.future;
+    }
+
+    final completer = Completer<bool>();
+    _loadingCompleter = completer;
+
+    Log.i('전면 광고 로드 시작: $_interstitialAdUnitId');
+
+    InterstitialAd.load(
+      adUnitId: _interstitialAdUnitId,
+      request: const AdRequest(),
+      adLoadCallback: InterstitialAdLoadCallback(
+        onAdLoaded: (ad) {
+          Log.i('전면 광고 로드 성공');
+          _interstitialAd = ad;
+          completer.complete(true);
+          _loadingCompleter = null;
+        },
+        onAdFailedToLoad: (error) {
+          Log.e('전면 광고 로드 실패', error);
+          completer.complete(false);
+          _loadingCompleter = null;
+        },
+      ),
+    );
+
+    return completer.future;
+  }
+
+  /// 다음 광고 미리로드
+  void _preload() {
+    if (_interstitialAd != null || _loadingCompleter != null) return;
+    _ensureAdLoaded();
+  }
+}

lib/services/sms_scanner.dart

@@ -518,7 +518,8 @@ String _isoExtractServiceName(String body, String sender) {
 
 String _isoExtractServiceNameFromSender(String sender) {
   if (RegExp(r'^\d+$').hasMatch(sender)) {
-    return _unknownServiceLabel();
+    // Isolate에서 실행되므로 하드코딩 사용 (Flutter 바인딩 접근 불가)
+    return 'Unknown service';
   }
   return sender.replaceAll(RegExp(r'[^\w\s가-힣]'), '').trim();
 }

lib/widgets/sms_scan/scan_loading_widget.dart

@@ -7,12 +7,11 @@ class ScanLoadingWidget extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return SizedBox.expand(
+    return Center(
       child: Padding(
         padding: const EdgeInsets.symmetric(horizontal: 16.0),
         child: Column(
-          mainAxisAlignment: MainAxisAlignment.center,
+          mainAxisSize: MainAxisSize.min,
-          crossAxisAlignment: CrossAxisAlignment.center,
           children: [
             CircularProgressIndicator(
               color: Theme.of(context).colorScheme.primary,

pubspec.yaml

@@ -1,7 +1,7 @@
 name: submanager
 description: A new Flutter project.
 publish_to: 'none'
-version: 1.0.1+2
+version: 1.0.1+3
 
 environment:
   sdk: '>=3.0.0 <4.0.0'