🎨 Use feature based folder structure

lib/core/models/activity.dart

@@ -0,0 +1,103 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:island/accounts/accounts_models/account.dart';
+
+part 'activity.freezed.dart';
+part 'activity.g.dart';
+
+@freezed
+sealed class SnNotableDay with _$SnNotableDay {
+  const factory SnNotableDay({
+    required DateTime date,
+    required String localName,
+    required String globalName,
+    required String? countryCode,
+    required String? localizableKey,
+    required List<int> holidays,
+  }) = _SnNotableDay;
+
+  factory SnNotableDay.fromJson(Map<String, dynamic> json) =>
+      _$SnNotableDayFromJson(json);
+}
+
+@freezed
+sealed class SnTimelineEvent with _$SnTimelineEvent {
+  const factory SnTimelineEvent({
+    required String id,
+    required String type,
+    required String resourceIdentifier,
+    required dynamic data,
+    required DateTime createdAt,
+    required DateTime updatedAt,
+    required DateTime? deletedAt,
+  }) = _SnTimelineEvent;
+
+  factory SnTimelineEvent.fromJson(Map<String, dynamic> json) =>
+      _$SnTimelineEventFromJson(json);
+}
+
+@freezed
+sealed class SnCheckInResult with _$SnCheckInResult {
+  const factory SnCheckInResult({
+    required String id,
+    required int level,
+    required List<SnFortuneTip> tips,
+    required String accountId,
+    required SnAccount? account,
+    required DateTime createdAt,
+    required DateTime updatedAt,
+    required DateTime? deletedAt,
+  }) = _SnCheckInResult;
+
+  factory SnCheckInResult.fromJson(Map<String, dynamic> json) =>
+      _$SnCheckInResultFromJson(json);
+}
+
+@freezed
+sealed class SnFortuneTip with _$SnFortuneTip {
+  const factory SnFortuneTip({
+    required bool isPositive,
+    required String title,
+    required String content,
+  }) = _SnFortuneTip;
+
+  factory SnFortuneTip.fromJson(Map<String, dynamic> json) =>
+      _$SnFortuneTipFromJson(json);
+}
+
+@freezed
+sealed class SnEventCalendarEntry with _$SnEventCalendarEntry {
+  const factory SnEventCalendarEntry({
+    required DateTime date,
+    required SnCheckInResult? checkInResult,
+    required List<SnAccountStatus> statuses,
+  }) = _SnEventCalendarEntry;
+
+  factory SnEventCalendarEntry.fromJson(Map<String, dynamic> json) =>
+      _$SnEventCalendarEntryFromJson(json);
+}
+
+@freezed
+sealed class SnPresenceActivity with _$SnPresenceActivity {
+  const factory SnPresenceActivity({
+    required String id,
+    required int type,
+    required String? manualId,
+    required String? title,
+    required String? subtitle,
+    required String? caption,
+    required String? titleUrl,
+    required String? subtitleUrl,
+    required String? smallImage,
+    required String? largeImage,
+    required Map<String, dynamic>? meta,
+    required int leaseMinutes,
+    required DateTime leaseExpiresAt,
+    required String accountId,
+    required DateTime createdAt,
+    required DateTime updatedAt,
+    required DateTime? deletedAt,
+  }) = _SnPresenceActivity;
+
+  factory SnPresenceActivity.fromJson(Map<String, dynamic> json) =>
+      _$SnPresenceActivityFromJson(json);
+}