feat: Complete Phase 1 - Full Flutter app implementation with comprehensive features

Version: 1.1.0

Major changes:
- Implemented complete Flutter app structure with all core features
- Added comprehensive UI screens for auth, countdown, goals, profile, settings, and social features
- Integrated Supabase backend with authentication and data repositories
- Added offline support with Hive caching and local storage
- Implemented comprehensive routing with go_router
- Added location services with Google Maps integration
- Implemented notifications and home widget support
- Added voice recording capabilities and AI chat features
- Created comprehensive test suite and documentation
- Added Android and iOS platform configurations
- Implemented achievements system and social features
- Added calendar integration and bucket list functionality

This represents a complete Phase 1 milestone with 3,775 additions across 31 files.

lifetimer/lib/data/models/cached_goal_model.dart

@@ -0,0 +1,127 @@
+import 'package:hive/hive.dart';
+
+part 'cached_goal.g.dart';
+
+@HiveType(typeId: 0)
+class CachedGoal extends HiveObject {
+  @HiveField(0)
+  final String id;
+
+  @HiveField(1)
+  final String ownerId;
+
+  @HiveField(2)
+  final String title;
+
+  @HiveField(3)
+  final String? description;
+
+  @HiveField(4)
+  final int progress;
+
+  @HiveField(5)
+  final double? locationLat;
+
+  @HiveField(6)
+  final double? locationLng;
+
+  @HiveField(7)
+  final String? locationName;
+
+  @HiveField(8)
+  final String? imageUrl;
+
+  @HiveField(9)
+  final bool completed;
+
+  @HiveField(10)
+  final DateTime createdAt;
+
+  @HiveField(11)
+  final DateTime updatedAt;
+
+  @HiveField(12)
+  final bool isDirty;
+
+  CachedGoal({
+    required this.id,
+    required this.ownerId,
+    required this.title,
+    this.description,
+    required this.progress,
+    this.locationLat,
+    this.locationLng,
+    this.locationName,
+    this.imageUrl,
+    required this.completed,
+    required this.createdAt,
+    required this.updatedAt,
+    this.isDirty = false,
+  });
+
+  CachedGoal copyWith({
+    String? id,
+    String? ownerId,
+    String? title,
+    String? description,
+    int? progress,
+    double? locationLat,
+    double? locationLng,
+    String? locationName,
+    String? imageUrl,
+    bool? completed,
+    DateTime? createdAt,
+    DateTime? updatedAt,
+    bool? isDirty,
+  }) {
+    return CachedGoal(
+      id: id ?? this.id,
+      ownerId: ownerId ?? this.ownerId,
+      title: title ?? this.title,
+      description: description ?? this.description,
+      progress: progress ?? this.progress,
+      locationLat: locationLat ?? this.locationLat,
+      locationLng: locationLng ?? this.locationLng,
+      locationName: locationName ?? this.locationName,
+      imageUrl: imageUrl ?? this.imageUrl,
+      completed: completed ?? this.completed,
+      createdAt: createdAt ?? this.createdAt,
+      updatedAt: updatedAt ?? this.updatedAt,
+      isDirty: isDirty ?? this.isDirty,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'id': id,
+      'owner_id': ownerId,
+      'title': title,
+      'description': description,
+      'progress': progress,
+      'location_lat': locationLat,
+      'location_lng': locationLng,
+      'location_name': locationName,
+      'image_url': imageUrl,
+      'completed': completed,
+      'created_at': createdAt.toIso8601String(),
+      'updated_at': updatedAt.toIso8601String(),
+    };
+  }
+
+  factory CachedGoal.fromJson(Map<String, dynamic> json) {
+    return CachedGoal(
+      id: json['id'] as String,
+      ownerId: json['owner_id'] as String,
+      title: json['title'] as String,
+      description: json['description'] as String?,
+      progress: json['progress'] as int,
+      locationLat: json['location_lat'] as double?,
+      locationLng: json['location_lng'] as double?,
+      locationName: json['location_name'] as String?,
+      imageUrl: json['image_url'] as String?,
+      completed: json['completed'] as bool,
+      createdAt: DateTime.parse(json['created_at'] as String),
+      updatedAt: DateTime.parse(json['updated_at'] as String),
+    );
+  }
+}