feat(monetization): 수익화 시스템 기반 모델 추가

- MonetizationState freezed 모델 추가
- google_mobile_ads, in_app_purchase 의존성 추가
- IAP 구매 상태, 버프 종료 시점, 복귀 보상 데이터 관리

lib/src/core/model/monetization_state.dart

@@ -0,0 +1,162 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+import 'package:asciineverdie/src/core/model/game_state.dart';
+
+part 'monetization_state.freezed.dart';
+part 'monetization_state.g.dart';
+
+/// 수익화 시스템 상태
+///
+/// IAP 구매 여부, 광고 관련 버프, 복귀 보상 등을 관리
+@freezed
+class MonetizationState with _$MonetizationState {
+  const MonetizationState._();
+
+  const factory MonetizationState({
+    /// IAP 광고 제거 구매 여부
+    @Default(false) bool adRemovalPurchased,
+
+    /// 캐릭터 생성 굴리기 남은 횟수 (0-5)
+    @Default(5) int rollsRemaining,
+
+    /// 되돌리기 남은 횟수
+    @Default(1) int undoRemaining,
+
+    /// 되돌리기용 스탯 히스토리 (JSON 변환 커스텀)
+    @JsonKey(fromJson: _statsListFromJson, toJson: _statsListToJson)
+    List<Stats>? rollHistory,
+
+    /// 자동부활 버프 종료 시점 (elapsedMs 기준)
+    int? autoReviveEndMs,
+
+    /// 5배속 버프 종료 시점 (elapsedMs 기준)
+    int? speedBoostEndMs,
+
+    /// 마지막 플레이 시각 (복귀 보상 계산용)
+    @JsonKey(fromJson: _dateTimeFromJson, toJson: _dateTimeToJson)
+    DateTime? lastPlayTime,
+
+    /// 미개봉 보물 상자 개수
+    @Default(0) int pendingChests,
+
+    /// 행운의 부적 버프 종료 시점 (elapsedMs 기준)
+    int? luckyCharmEndMs,
+  }) = _MonetizationState;
+
+  factory MonetizationState.fromJson(Map<String, dynamic> json) =>
+      _$MonetizationStateFromJson(json);
+
+  /// 기본 상태 생성 (신규 게임)
+  factory MonetizationState.initial({bool isPaidUser = false}) {
+    return MonetizationState(
+      adRemovalPurchased: isPaidUser,
+      rollsRemaining: 5,
+      undoRemaining: isPaidUser ? 3 : 1,
+      rollHistory: null,
+      pendingChests: 0,
+    );
+  }
+
+  // ===========================================================================
+  // 유틸리티 메서드
+  // ===========================================================================
+
+  /// 유료 사용자 여부
+  bool get isPaidUser => adRemovalPurchased;
+
+  /// 무료 사용자 여부
+  bool get isFreeUser => !adRemovalPurchased;
+
+  /// 자동부활 버프 활성 여부 (elapsedMs 기준)
+  bool isAutoReviveActive(int elapsedMs) {
+    if (autoReviveEndMs == null) return false;
+    return elapsedMs < autoReviveEndMs!;
+  }
+
+  /// 5배속 버프 활성 여부 (elapsedMs 기준)
+  /// 유료 사용자는 항상 활성
+  bool isSpeedBoostActive(int elapsedMs) {
+    if (isPaidUser) return true;
+    if (speedBoostEndMs == null) return false;
+    return elapsedMs < speedBoostEndMs!;
+  }
+
+  /// 행운의 부적 버프 활성 여부 (elapsedMs 기준)
+  bool isLuckyCharmActive(int elapsedMs) {
+    if (luckyCharmEndMs == null) return false;
+    return elapsedMs < luckyCharmEndMs!;
+  }
+
+  /// 굴리기 가능 여부
+  bool get canRoll => rollsRemaining > 0;
+
+  /// 되돌리기 가능 여부
+  bool canUndo(int historyLength) {
+    if (undoRemaining <= 0) return false;
+    if (rollHistory == null || rollHistory!.isEmpty) return false;
+    return historyLength > 0;
+  }
+
+  /// 실제 사용 가능한 되돌리기 횟수
+  int availableUndos(int historyLength) {
+    if (rollHistory == null) return 0;
+    final historyAvailable = rollHistory!.length;
+    return undoRemaining < historyAvailable ? undoRemaining : historyAvailable;
+  }
+
+  /// 최대 보물 상자 개수
+  int get maxChests => isPaidUser ? 10 : 5;
+
+  /// 보물 상자가 가득 찼는지 여부
+  bool get isChestsFull => pendingChests >= maxChests;
+}
+
+// =============================================================================
+// JSON 변환 헬퍼
+// =============================================================================
+
+/// Stats 리스트 → JSON
+List<Map<String, dynamic>>? _statsListToJson(List<Stats>? stats) {
+  if (stats == null) return null;
+  return stats
+      .map((s) => {
+            'str': s.str,
+            'con': s.con,
+            'dex': s.dex,
+            'int': s.intelligence,
+            'wis': s.wis,
+            'cha': s.cha,
+            'hpMax': s.hpMax,
+            'mpMax': s.mpMax,
+          })
+      .toList();
+}
+
+/// JSON → Stats 리스트
+List<Stats>? _statsListFromJson(List<dynamic>? json) {
+  if (json == null) return null;
+  return json.map((e) {
+    final m = e as Map<String, dynamic>;
+    return Stats(
+      str: m['str'] as int? ?? 0,
+      con: m['con'] as int? ?? 0,
+      dex: m['dex'] as int? ?? 0,
+      intelligence: m['int'] as int? ?? 0,
+      wis: m['wis'] as int? ?? 0,
+      cha: m['cha'] as int? ?? 0,
+      hpMax: m['hpMax'] as int? ?? 0,
+      mpMax: m['mpMax'] as int? ?? 0,
+    );
+  }).toList();
+}
+
+/// DateTime → JSON (밀리초 타임스탬프)
+int? _dateTimeToJson(DateTime? dateTime) {
+  return dateTime?.millisecondsSinceEpoch;
+}
+
+/// JSON → DateTime
+DateTime? _dateTimeFromJson(int? timestamp) {
+  if (timestamp == null) return null;
+  return DateTime.fromMillisecondsSinceEpoch(timestamp);
+}

lib/src/core/model/monetization_state.freezed.dart

@@ -0,0 +1,444 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
+
+part of 'monetization_state.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+  'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#adding-getters-and-methods-to-our-models',
+);
+
+MonetizationState _$MonetizationStateFromJson(Map<String, dynamic> json) {
+  return _MonetizationState.fromJson(json);
+}
+
+/// @nodoc
+mixin _$MonetizationState {
+  /// IAP 광고 제거 구매 여부
+  bool get adRemovalPurchased => throw _privateConstructorUsedError;
+
+  /// 캐릭터 생성 굴리기 남은 횟수 (0-5)
+  int get rollsRemaining => throw _privateConstructorUsedError;
+
+  /// 되돌리기 남은 횟수
+  int get undoRemaining => throw _privateConstructorUsedError;
+
+  /// 되돌리기용 스탯 히스토리 (JSON 변환 커스텀)
+  @JsonKey(fromJson: _statsListFromJson, toJson: _statsListToJson)
+  List<Stats>? get rollHistory => throw _privateConstructorUsedError;
+
+  /// 자동부활 버프 종료 시점 (elapsedMs 기준)
+  int? get autoReviveEndMs => throw _privateConstructorUsedError;
+
+  /// 5배속 버프 종료 시점 (elapsedMs 기준)
+  int? get speedBoostEndMs => throw _privateConstructorUsedError;
+
+  /// 마지막 플레이 시각 (복귀 보상 계산용)
+  @JsonKey(fromJson: _dateTimeFromJson, toJson: _dateTimeToJson)
+  DateTime? get lastPlayTime => throw _privateConstructorUsedError;
+
+  /// 미개봉 보물 상자 개수
+  int get pendingChests => throw _privateConstructorUsedError;
+
+  /// 행운의 부적 버프 종료 시점 (elapsedMs 기준)
+  int? get luckyCharmEndMs => throw _privateConstructorUsedError;
+
+  /// Serializes this MonetizationState to a JSON map.
+  Map<String, dynamic> toJson() => throw _privateConstructorUsedError;
+
+  /// Create a copy of MonetizationState
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  $MonetizationStateCopyWith<MonetizationState> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $MonetizationStateCopyWith<$Res> {
+  factory $MonetizationStateCopyWith(
+    MonetizationState value,
+    $Res Function(MonetizationState) then,
+  ) = _$MonetizationStateCopyWithImpl<$Res, MonetizationState>;
+  @useResult
+  $Res call({
+    bool adRemovalPurchased,
+    int rollsRemaining,
+    int undoRemaining,
+    @JsonKey(fromJson: _statsListFromJson, toJson: _statsListToJson)
+    List<Stats>? rollHistory,
+    int? autoReviveEndMs,
+    int? speedBoostEndMs,
+    @JsonKey(fromJson: _dateTimeFromJson, toJson: _dateTimeToJson)
+    DateTime? lastPlayTime,
+    int pendingChests,
+    int? luckyCharmEndMs,
+  });
+}
+
+/// @nodoc
+class _$MonetizationStateCopyWithImpl<$Res, $Val extends MonetizationState>
+    implements $MonetizationStateCopyWith<$Res> {
+  _$MonetizationStateCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  /// Create a copy of MonetizationState
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? adRemovalPurchased = null,
+    Object? rollsRemaining = null,
+    Object? undoRemaining = null,
+    Object? rollHistory = freezed,
+    Object? autoReviveEndMs = freezed,
+    Object? speedBoostEndMs = freezed,
+    Object? lastPlayTime = freezed,
+    Object? pendingChests = null,
+    Object? luckyCharmEndMs = freezed,
+  }) {
+    return _then(
+      _value.copyWith(
+            adRemovalPurchased: null == adRemovalPurchased
+                ? _value.adRemovalPurchased
+                : adRemovalPurchased // ignore: cast_nullable_to_non_nullable
+                      as bool,
+            rollsRemaining: null == rollsRemaining
+                ? _value.rollsRemaining
+                : rollsRemaining // ignore: cast_nullable_to_non_nullable
+                      as int,
+            undoRemaining: null == undoRemaining
+                ? _value.undoRemaining
+                : undoRemaining // ignore: cast_nullable_to_non_nullable
+                      as int,
+            rollHistory: freezed == rollHistory
+                ? _value.rollHistory
+                : rollHistory // ignore: cast_nullable_to_non_nullable
+                      as List<Stats>?,
+            autoReviveEndMs: freezed == autoReviveEndMs
+                ? _value.autoReviveEndMs
+                : autoReviveEndMs // ignore: cast_nullable_to_non_nullable
+                      as int?,
+            speedBoostEndMs: freezed == speedBoostEndMs
+                ? _value.speedBoostEndMs
+                : speedBoostEndMs // ignore: cast_nullable_to_non_nullable
+                      as int?,
+            lastPlayTime: freezed == lastPlayTime
+                ? _value.lastPlayTime
+                : lastPlayTime // ignore: cast_nullable_to_non_nullable
+                      as DateTime?,
+            pendingChests: null == pendingChests
+                ? _value.pendingChests
+                : pendingChests // ignore: cast_nullable_to_non_nullable
+                      as int,
+            luckyCharmEndMs: freezed == luckyCharmEndMs
+                ? _value.luckyCharmEndMs
+                : luckyCharmEndMs // ignore: cast_nullable_to_non_nullable
+                      as int?,
+          )
+          as $Val,
+    );
+  }
+}
+
+/// @nodoc
+abstract class _$$MonetizationStateImplCopyWith<$Res>
+    implements $MonetizationStateCopyWith<$Res> {
+  factory _$$MonetizationStateImplCopyWith(
+    _$MonetizationStateImpl value,
+    $Res Function(_$MonetizationStateImpl) then,
+  ) = __$$MonetizationStateImplCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call({
+    bool adRemovalPurchased,
+    int rollsRemaining,
+    int undoRemaining,
+    @JsonKey(fromJson: _statsListFromJson, toJson: _statsListToJson)
+    List<Stats>? rollHistory,
+    int? autoReviveEndMs,
+    int? speedBoostEndMs,
+    @JsonKey(fromJson: _dateTimeFromJson, toJson: _dateTimeToJson)
+    DateTime? lastPlayTime,
+    int pendingChests,
+    int? luckyCharmEndMs,
+  });
+}
+
+/// @nodoc
+class __$$MonetizationStateImplCopyWithImpl<$Res>
+    extends _$MonetizationStateCopyWithImpl<$Res, _$MonetizationStateImpl>
+    implements _$$MonetizationStateImplCopyWith<$Res> {
+  __$$MonetizationStateImplCopyWithImpl(
+    _$MonetizationStateImpl _value,
+    $Res Function(_$MonetizationStateImpl) _then,
+  ) : super(_value, _then);
+
+  /// Create a copy of MonetizationState
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? adRemovalPurchased = null,
+    Object? rollsRemaining = null,
+    Object? undoRemaining = null,
+    Object? rollHistory = freezed,
+    Object? autoReviveEndMs = freezed,
+    Object? speedBoostEndMs = freezed,
+    Object? lastPlayTime = freezed,
+    Object? pendingChests = null,
+    Object? luckyCharmEndMs = freezed,
+  }) {
+    return _then(
+      _$MonetizationStateImpl(
+        adRemovalPurchased: null == adRemovalPurchased
+            ? _value.adRemovalPurchased
+            : adRemovalPurchased // ignore: cast_nullable_to_non_nullable
+                  as bool,
+        rollsRemaining: null == rollsRemaining
+            ? _value.rollsRemaining
+            : rollsRemaining // ignore: cast_nullable_to_non_nullable
+                  as int,
+        undoRemaining: null == undoRemaining
+            ? _value.undoRemaining
+            : undoRemaining // ignore: cast_nullable_to_non_nullable
+                  as int,
+        rollHistory: freezed == rollHistory
+            ? _value._rollHistory
+            : rollHistory // ignore: cast_nullable_to_non_nullable
+                  as List<Stats>?,
+        autoReviveEndMs: freezed == autoReviveEndMs
+            ? _value.autoReviveEndMs
+            : autoReviveEndMs // ignore: cast_nullable_to_non_nullable
+                  as int?,
+        speedBoostEndMs: freezed == speedBoostEndMs
+            ? _value.speedBoostEndMs
+            : speedBoostEndMs // ignore: cast_nullable_to_non_nullable
+                  as int?,
+        lastPlayTime: freezed == lastPlayTime
+            ? _value.lastPlayTime
+            : lastPlayTime // ignore: cast_nullable_to_non_nullable
+                  as DateTime?,
+        pendingChests: null == pendingChests
+            ? _value.pendingChests
+            : pendingChests // ignore: cast_nullable_to_non_nullable
+                  as int,
+        luckyCharmEndMs: freezed == luckyCharmEndMs
+            ? _value.luckyCharmEndMs
+            : luckyCharmEndMs // ignore: cast_nullable_to_non_nullable
+                  as int?,
+      ),
+    );
+  }
+}
+
+/// @nodoc
+@JsonSerializable()
+class _$MonetizationStateImpl extends _MonetizationState {
+  const _$MonetizationStateImpl({
+    this.adRemovalPurchased = false,
+    this.rollsRemaining = 5,
+    this.undoRemaining = 1,
+    @JsonKey(fromJson: _statsListFromJson, toJson: _statsListToJson)
+    final List<Stats>? rollHistory,
+    this.autoReviveEndMs,
+    this.speedBoostEndMs,
+    @JsonKey(fromJson: _dateTimeFromJson, toJson: _dateTimeToJson)
+    this.lastPlayTime,
+    this.pendingChests = 0,
+    this.luckyCharmEndMs,
+  }) : _rollHistory = rollHistory,
+       super._();
+
+  factory _$MonetizationStateImpl.fromJson(Map<String, dynamic> json) =>
+      _$$MonetizationStateImplFromJson(json);
+
+  /// IAP 광고 제거 구매 여부
+  @override
+  @JsonKey()
+  final bool adRemovalPurchased;
+
+  /// 캐릭터 생성 굴리기 남은 횟수 (0-5)
+  @override
+  @JsonKey()
+  final int rollsRemaining;
+
+  /// 되돌리기 남은 횟수
+  @override
+  @JsonKey()
+  final int undoRemaining;
+
+  /// 되돌리기용 스탯 히스토리 (JSON 변환 커스텀)
+  final List<Stats>? _rollHistory;
+
+  /// 되돌리기용 스탯 히스토리 (JSON 변환 커스텀)
+  @override
+  @JsonKey(fromJson: _statsListFromJson, toJson: _statsListToJson)
+  List<Stats>? get rollHistory {
+    final value = _rollHistory;
+    if (value == null) return null;
+    if (_rollHistory is EqualUnmodifiableListView) return _rollHistory;
+    // ignore: implicit_dynamic_type
+    return EqualUnmodifiableListView(value);
+  }
+
+  /// 자동부활 버프 종료 시점 (elapsedMs 기준)
+  @override
+  final int? autoReviveEndMs;
+
+  /// 5배속 버프 종료 시점 (elapsedMs 기준)
+  @override
+  final int? speedBoostEndMs;
+
+  /// 마지막 플레이 시각 (복귀 보상 계산용)
+  @override
+  @JsonKey(fromJson: _dateTimeFromJson, toJson: _dateTimeToJson)
+  final DateTime? lastPlayTime;
+
+  /// 미개봉 보물 상자 개수
+  @override
+  @JsonKey()
+  final int pendingChests;
+
+  /// 행운의 부적 버프 종료 시점 (elapsedMs 기준)
+  @override
+  final int? luckyCharmEndMs;
+
+  @override
+  String toString() {
+    return 'MonetizationState(adRemovalPurchased: $adRemovalPurchased, rollsRemaining: $rollsRemaining, undoRemaining: $undoRemaining, rollHistory: $rollHistory, autoReviveEndMs: $autoReviveEndMs, speedBoostEndMs: $speedBoostEndMs, lastPlayTime: $lastPlayTime, pendingChests: $pendingChests, luckyCharmEndMs: $luckyCharmEndMs)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$MonetizationStateImpl &&
+            (identical(other.adRemovalPurchased, adRemovalPurchased) ||
+                other.adRemovalPurchased == adRemovalPurchased) &&
+            (identical(other.rollsRemaining, rollsRemaining) ||
+                other.rollsRemaining == rollsRemaining) &&
+            (identical(other.undoRemaining, undoRemaining) ||
+                other.undoRemaining == undoRemaining) &&
+            const DeepCollectionEquality().equals(
+              other._rollHistory,
+              _rollHistory,
+            ) &&
+            (identical(other.autoReviveEndMs, autoReviveEndMs) ||
+                other.autoReviveEndMs == autoReviveEndMs) &&
+            (identical(other.speedBoostEndMs, speedBoostEndMs) ||
+                other.speedBoostEndMs == speedBoostEndMs) &&
+            (identical(other.lastPlayTime, lastPlayTime) ||
+                other.lastPlayTime == lastPlayTime) &&
+            (identical(other.pendingChests, pendingChests) ||
+                other.pendingChests == pendingChests) &&
+            (identical(other.luckyCharmEndMs, luckyCharmEndMs) ||
+                other.luckyCharmEndMs == luckyCharmEndMs));
+  }
+
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  int get hashCode => Object.hash(
+    runtimeType,
+    adRemovalPurchased,
+    rollsRemaining,
+    undoRemaining,
+    const DeepCollectionEquality().hash(_rollHistory),
+    autoReviveEndMs,
+    speedBoostEndMs,
+    lastPlayTime,
+    pendingChests,
+    luckyCharmEndMs,
+  );
+
+  /// Create a copy of MonetizationState
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$MonetizationStateImplCopyWith<_$MonetizationStateImpl> get copyWith =>
+      __$$MonetizationStateImplCopyWithImpl<_$MonetizationStateImpl>(
+        this,
+        _$identity,
+      );
+
+  @override
+  Map<String, dynamic> toJson() {
+    return _$$MonetizationStateImplToJson(this);
+  }
+}
+
+abstract class _MonetizationState extends MonetizationState {
+  const factory _MonetizationState({
+    final bool adRemovalPurchased,
+    final int rollsRemaining,
+    final int undoRemaining,
+    @JsonKey(fromJson: _statsListFromJson, toJson: _statsListToJson)
+    final List<Stats>? rollHistory,
+    final int? autoReviveEndMs,
+    final int? speedBoostEndMs,
+    @JsonKey(fromJson: _dateTimeFromJson, toJson: _dateTimeToJson)
+    final DateTime? lastPlayTime,
+    final int pendingChests,
+    final int? luckyCharmEndMs,
+  }) = _$MonetizationStateImpl;
+  const _MonetizationState._() : super._();
+
+  factory _MonetizationState.fromJson(Map<String, dynamic> json) =
+      _$MonetizationStateImpl.fromJson;
+
+  /// IAP 광고 제거 구매 여부
+  @override
+  bool get adRemovalPurchased;
+
+  /// 캐릭터 생성 굴리기 남은 횟수 (0-5)
+  @override
+  int get rollsRemaining;
+
+  /// 되돌리기 남은 횟수
+  @override
+  int get undoRemaining;
+
+  /// 되돌리기용 스탯 히스토리 (JSON 변환 커스텀)
+  @override
+  @JsonKey(fromJson: _statsListFromJson, toJson: _statsListToJson)
+  List<Stats>? get rollHistory;
+
+  /// 자동부활 버프 종료 시점 (elapsedMs 기준)
+  @override
+  int? get autoReviveEndMs;
+
+  /// 5배속 버프 종료 시점 (elapsedMs 기준)
+  @override
+  int? get speedBoostEndMs;
+
+  /// 마지막 플레이 시각 (복귀 보상 계산용)
+  @override
+  @JsonKey(fromJson: _dateTimeFromJson, toJson: _dateTimeToJson)
+  DateTime? get lastPlayTime;
+
+  /// 미개봉 보물 상자 개수
+  @override
+  int get pendingChests;
+
+  /// 행운의 부적 버프 종료 시점 (elapsedMs 기준)
+  @override
+  int? get luckyCharmEndMs;
+
+  /// Create a copy of MonetizationState
+  /// with the given fields replaced by the non-null parameter values.
+  @override
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  _$$MonetizationStateImplCopyWith<_$MonetizationStateImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}

lib/src/core/model/monetization_state.g.dart

@@ -0,0 +1,35 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'monetization_state.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+_$MonetizationStateImpl _$$MonetizationStateImplFromJson(
+  Map<String, dynamic> json,
+) => _$MonetizationStateImpl(
+  adRemovalPurchased: json['adRemovalPurchased'] as bool? ?? false,
+  rollsRemaining: (json['rollsRemaining'] as num?)?.toInt() ?? 5,
+  undoRemaining: (json['undoRemaining'] as num?)?.toInt() ?? 1,
+  rollHistory: _statsListFromJson(json['rollHistory'] as List?),
+  autoReviveEndMs: (json['autoReviveEndMs'] as num?)?.toInt(),
+  speedBoostEndMs: (json['speedBoostEndMs'] as num?)?.toInt(),
+  lastPlayTime: _dateTimeFromJson((json['lastPlayTime'] as num?)?.toInt()),
+  pendingChests: (json['pendingChests'] as num?)?.toInt() ?? 0,
+  luckyCharmEndMs: (json['luckyCharmEndMs'] as num?)?.toInt(),
+);
+
+Map<String, dynamic> _$$MonetizationStateImplToJson(
+  _$MonetizationStateImpl instance,
+) => <String, dynamic>{
+  'adRemovalPurchased': instance.adRemovalPurchased,
+  'rollsRemaining': instance.rollsRemaining,
+  'undoRemaining': instance.undoRemaining,
+  'rollHistory': _statsListToJson(instance.rollHistory),
+  'autoReviveEndMs': instance.autoReviveEndMs,
+  'speedBoostEndMs': instance.speedBoostEndMs,
+  'lastPlayTime': _dateTimeToJson(instance.lastPlayTime),
+  'pendingChests': instance.pendingChests,
+  'luckyCharmEndMs': instance.luckyCharmEndMs,
+};

pubspec.lock

@@ -301,6 +301,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.3"
+  google_mobile_ads:
+    dependency: "direct main"
+    description:
+      name: google_mobile_ads
+      sha256: "0d4a3744b5e8ed1b8be6a1b452d309f811688855a497c6113fc4400f922db603"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.3.1"
   graphs:
     dependency: transitive
     description:
@@ -341,6 +349,38 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.7.2"
+  in_app_purchase:
+    dependency: "direct main"
+    description:
+      name: in_app_purchase
+      sha256: "5cddd7f463f3bddb1d37a72b95066e840d5822d66291331d7f8f05ce32c24b6c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.3"
+  in_app_purchase_android:
+    dependency: transitive
+    description:
+      name: in_app_purchase_android
+      sha256: abb254ae159a5a9d4f867795ecb076864faeba59ce015ab81d4cca380f23df45
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.4.0+8"
+  in_app_purchase_platform_interface:
+    dependency: transitive
+    description:
+      name: in_app_purchase_platform_interface
+      sha256: "1d353d38251da5b9fea6635c0ebfc6bb17a2d28d0e86ea5e083bf64244f1fb4c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.0"
+  in_app_purchase_storekit:
+    dependency: transitive
+    description:
+      name: in_app_purchase_storekit
+      sha256: f7cbbd7fb47ab5a4fb736fc3f20ae81a4f6def0af9297b3c525ca727761e2589
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.4.7"
   intl:
     dependency: "direct main"
     description:
@@ -834,6 +874,38 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.3"
+  webview_flutter:
+    dependency: transitive
+    description:
+      name: webview_flutter
+      sha256: a3da219916aba44947d3a5478b1927876a09781174b5a2b67fa5be0555154bf9
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.13.1"
+  webview_flutter_android:
+    dependency: transitive
+    description:
+      name: webview_flutter_android
+      sha256: eeeb3fcd5f0ff9f8446c9f4bbc18a99b809e40297528a3395597d03aafb9f510
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.10.11"
+  webview_flutter_platform_interface:
+    dependency: transitive
+    description:
+      name: webview_flutter_platform_interface
+      sha256: "63d26ee3aca7256a83ccb576a50272edd7cfc80573a4305caa98985feb493ee0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.14.0"
+  webview_flutter_wkwebview:
+    dependency: transitive
+    description:
+      name: webview_flutter_wkwebview
+      sha256: e49f378ed066efb13fc36186bbe0bd2425630d4ea0dbc71a18fdd0e4d8ed8ebc
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.23.5"
   xdg_directories:
     dependency: transitive
     description:

pubspec.yaml

@@ -41,6 +41,10 @@ dependencies:
   # Code generation annotations
   freezed_annotation: ^2.4.1
   json_annotation: ^4.9.0
+  # AdMob 광고
+  google_mobile_ads: ^5.3.0
+  # IAP (인앱 결제)
+  in_app_purchase: ^3.2.0
 
 dev_dependencies:
   flutter_test: