Initial commit: SubManager Flutter App

주요 구현 완료 기능:
- 구독 관리 (추가/편집/삭제/카테고리 분류)
- 이벤트 할인 시스템 (기본값 자동 설정)
- SMS 자동 스캔 및 구독 정보 추출
- 알림 시스템 (타임존 처리 안정화)
- 환율 변환 지원 (KRW/USD)
- 반응형 UI 및 애니메이션
- 다국어 지원 (한국어/영어)

버그 수정:
- NotificationService tz.local 초기화 오류 해결
- MainScreenSummaryCard 레이아웃 오버플로우 수정
- 구독 추가 시 LateInitializationError 완전 해결

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

android/app/build.gradle.kts

@@ -0,0 +1,44 @@
+plugins {
+    id("com.android.application")
+    id("kotlin-android")
+    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
+    id("dev.flutter.flutter-gradle-plugin")
+}
+
+android {
+    namespace = "com.example.submanager"
+    compileSdk = flutter.compileSdkVersion
+    ndkVersion = flutter.ndkVersion
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
+    }
+
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_11.toString()
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId = "com.example.submanager"
+        // You can update the following values to match your application needs.
+        // For more information, see: https://flutter.dev/to/review-gradle-config.
+        minSdk = flutter.minSdkVersion
+        targetSdk = flutter.targetSdkVersion
+        versionCode = flutter.versionCode
+        versionName = flutter.versionName
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig = signingConfigs.getByName("debug")
+        }
+    }
+}
+
+flutter {
+    source = "../.."
+}

android/app/src/debug/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,47 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <uses-permission android:name="android.permission.READ_SMS" />
+    <uses-permission android:name="android.permission.RECEIVE_SMS" />
+    <application
+        android:label="구독 관리"
+        android:name="${applicationName}"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:launchMode="singleTop"
+            android:taskAffinity=""
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+    <!-- Required to query activities that can process text, see:
+         https://developer.android.com/training/package-visibility and
+         https://developer.android.com/reference/android/content/Intent#ACTION_PROCESS_TEXT.
+
+         In particular, this is used by the Flutter engine in io.flutter.plugin.text.ProcessTextPlugin. -->
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.PROCESS_TEXT"/>
+            <data android:mimeType="text/plain"/>
+        </intent>
+    </queries>
+</manifest>

android/app/src/main/kotlin/com/example/submanager/MainActivity.kt

@@ -0,0 +1,198 @@
+package com.example.submanager
+
+import io.flutter.embedding.android.FlutterActivity
+import io.flutter.embedding.engine.FlutterEngine
+import io.flutter.plugin.common.MethodChannel
+import android.content.Context
+import android.database.ContentObserver
+import android.net.Uri
+import android.os.Handler
+import android.os.Looper
+import android.provider.Telephony
+import org.json.JSONObject
+import java.text.SimpleDateFormat
+import java.util.*
+
+class MainActivity: FlutterActivity() {
+    private val CHANNEL = "com.submanager/sms"
+
+    override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
+        super.configureFlutterEngine(flutterEngine)
+        MethodChannel(flutterEngine.dartExecutor.binaryMessenger, CHANNEL).setMethodCallHandler { call, result ->
+            when (call.method) {
+                "scanSubscriptions" -> {
+                    scanSubscriptions(result)
+                }
+                else -> {
+                    result.notImplemented()
+                }
+            }
+        }
+    }
+
+    private fun scanSubscriptions(result: MethodChannel.Result) {
+        try {
+            // 메시지를 임시 저장할 맵
+            val messageGroups = mutableMapOf<String, MutableList<Map<String, Any>>>()
+            
+            val cursor = contentResolver.query(
+                Telephony.Sms.CONTENT_URI,
+                arrayOf(
+                    Telephony.Sms.ADDRESS,
+                    Telephony.Sms.BODY,
+                    Telephony.Sms.DATE
+                ),
+                null,
+                null,
+                "${Telephony.Sms.DATE} DESC"
+            )
+
+            cursor?.use {
+                while (it.moveToNext()) {
+                    val address = it.getString(0)
+                    val body = it.getString(1)
+                    val date = it.getLong(2)
+
+                    // 구독 관련 키워드로 필터링
+                    if (isSubscriptionMessage(body)) {
+                        val parsedMessage = parseSubscriptionMessage(body, address, date)
+                        if (parsedMessage != null) {
+                            val key = "${address}_${parsedMessage["monthlyCost"]}"
+                            if (!messageGroups.containsKey(key)) {
+                                messageGroups[key] = mutableListOf()
+                            }
+                            messageGroups[key]?.add(parsedMessage)
+                        }
+                    }
+                }
+            }
+            
+            // 최종 구독 목록
+            val subscriptions = mutableListOf<Map<String, Any>>()
+            
+            // 동일한 발신자와 유사한 금액으로 2회 이상 메시지가 있는 경우만 구독으로 판단
+            for ((key, messages) in messageGroups) {
+                if (messages.size >= 2) {
+                    // 가장 최근 메시지 정보를 사용
+                    val latestMessage = messages.first()
+                    
+                    // 주기성 추가
+                    val enhancedMessage = latestMessage.toMutableMap()
+                    enhancedMessage["repeatCount"] = messages.size
+                    enhancedMessage["isRecurring"] = true
+                    
+                    // 이전 결제일도 추가
+                    if (messages.size > 1) {
+                        enhancedMessage["previousPaymentDate"] = messages[1]["nextBillingDate"] ?: ""
+                    }
+                    
+                    subscriptions.add(enhancedMessage)
+                }
+            }
+
+            result.success(subscriptions)
+        } catch (e: Exception) {
+            result.error("SMS_SCAN_ERROR", e.message, null)
+        }
+    }
+
+    private fun isSubscriptionMessage(body: String?): Boolean {
+        if (body == null) return false
+        val keywords = listOf(
+            "구독", "결제", "청구", "요금", "월정액", "정기결제",
+            "subscription", "payment", "bill", "fee", "monthly", "recurring"
+        )
+        return keywords.any { body.contains(it) }
+    }
+
+    private fun parseSubscriptionMessage(
+        body: String,
+        address: String,
+        date: Long
+    ): Map<String, Any>? {
+        try {
+            // 서비스명 추출 (예: "넷플릭스", "스포티파이" 등)
+            val serviceName = extractServiceName(address, body)
+
+            // 금액 추출 (예: "9,900원", "₩9,900" 등)
+            val amount = extractAmount(body)
+
+            // 결제 주기 추출 (예: "월간", "연간" 등)
+            val billingCycle = extractBillingCycle(body)
+
+            // 다음 결제일 추출
+            val nextBillingDate = extractNextBillingDate(body, date)
+
+            return mapOf(
+                "serviceName" to serviceName,
+                "monthlyCost" to amount,
+                "billingCycle" to billingCycle,
+                "nextBillingDate" to nextBillingDate,
+                "isRecurring" to false,
+                "repeatCount" to 1,
+                "sender" to address,
+                "messageDate" to formatDate(date)
+            )
+        } catch (e: Exception) {
+            return null
+        }
+    }
+
+    private fun formatDate(timestamp: Long): String {
+        val date = Date(timestamp)
+        val formatter = SimpleDateFormat("yyyy-MM-dd", Locale.getDefault())
+        return formatter.format(date)
+    }
+
+    private fun extractServiceName(address: String, body: String): String {
+        // 주소에서 서비스명 추출 시도
+        val addressPattern = Regex("""([가-힣a-zA-Z]+)""")
+        val addressMatch = addressPattern.find(address)
+        if (addressMatch != null) {
+            return addressMatch.value
+        }
+
+        // 본문에서 서비스명 추출 시도
+        val bodyPattern = Regex("""([가-힣a-zA-Z]+)\s*(구독|결제|청구)""")
+        val bodyMatch = bodyPattern.find(body)
+        if (bodyMatch != null) {
+            return bodyMatch.groupValues[1]
+        }
+
+        return "알 수 없는 서비스"
+    }
+
+    private fun extractAmount(body: String): Double {
+        val pattern = Regex("""(\d{1,3}(?:,\d{3})*)(?:\s*원|\s*₩)""")
+        val match = pattern.find(body)
+        return if (match != null) {
+            match.groupValues[1].replace(",", "").toDouble()
+        } else {
+            0.0
+        }
+    }
+
+    private fun extractBillingCycle(body: String): String {
+        return when {
+            body.contains("월간") || body.contains("월정액") -> "월간"
+            body.contains("연간") || body.contains("연정액") -> "연간"
+            body.contains("주간") || body.contains("주정액") -> "주간"
+            else -> "월간"
+        }
+    }
+
+    private fun extractNextBillingDate(body: String, messageDate: Long): String {
+        val datePattern = Regex("""(\d{4})[년/.-](\d{1,2})[월/.-](\d{1,2})일?""")
+        val match = datePattern.find(body)
+        if (match != null) {
+            val (year, month, day) = match.destructured
+            return "$year-${month.padStart(2, '0')}-${day.padStart(2, '0')}"
+        }
+
+        // 날짜를 찾을 수 없는 경우, 메시지 날짜로부터 1개월 후를 반환
+        val calendar = Calendar.getInstance()
+        calendar.timeInMillis = messageDate
+        calendar.add(Calendar.MONTH, 1)
+        return SimpleDateFormat("yyyy-MM-dd", Locale.getDefault()).format(calendar.time)
+    }
+}

android/app/src/main/res/drawable-v21/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

android/app/src/main/res/drawable/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

android/app/src/main/res/values-night/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

android/app/src/main/res/values/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

android/app/src/profile/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>