feat: 초기 프로젝트 설정 및 LunchPick 앱 구현

LunchPick(오늘 뭐 먹Z?) Flutter 앱의 초기 구현입니다.

주요 기능:
- 네이버 지도 연동 맛집 추가
- 랜덤 메뉴 추천 시스템
- 날씨 기반 거리 조정
- 방문 기록 관리
- Bluetooth 맛집 공유
- 다크모드 지원

기술 스택:
- Flutter 3.8.1+
- Riverpod 상태 관리
- Hive 로컬 DB
- Clean Architecture

🤖 Generated with Claude Code

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

lib/domain/entities/user_settings.dart

@@ -0,0 +1,45 @@
+import 'package:hive/hive.dart';
+
+part 'user_settings.g.dart';
+
+@HiveType(typeId: 4)
+class UserSettings {
+  @HiveField(0)
+  final int revisitPreventionDays;
+  
+  @HiveField(1)
+  final bool notificationEnabled;
+  
+  @HiveField(2)
+  final String notificationTime;
+  
+  @HiveField(3)
+  final Map<String, double> categoryWeights;
+  
+  @HiveField(4)
+  final int notificationDelayMinutes;
+
+  UserSettings({
+    this.revisitPreventionDays = 7,
+    this.notificationEnabled = true,
+    this.notificationTime = "14:00",
+    Map<String, double>? categoryWeights,
+    this.notificationDelayMinutes = 90,
+  }) : categoryWeights = categoryWeights ?? {};
+
+  UserSettings copyWith({
+    int? revisitPreventionDays,
+    bool? notificationEnabled,
+    String? notificationTime,
+    Map<String, double>? categoryWeights,
+    int? notificationDelayMinutes,
+  }) {
+    return UserSettings(
+      revisitPreventionDays: revisitPreventionDays ?? this.revisitPreventionDays,
+      notificationEnabled: notificationEnabled ?? this.notificationEnabled,
+      notificationTime: notificationTime ?? this.notificationTime,
+      categoryWeights: categoryWeights ?? this.categoryWeights,
+      notificationDelayMinutes: notificationDelayMinutes ?? this.notificationDelayMinutes,
+    );
+  }
+}