feat: basic integration of teams

lib/data/models/team.dart

@@ -1,5 +1,6 @@
 import 'package:clock/clock.dart';
 import 'package:collection/collection.dart';
+import 'package:tallee/core/enums.dart';
 import 'package:tallee/data/models/player.dart';
 import 'package:uuid/uuid.dart';
 
@@ -7,31 +8,39 @@ class Team {
   final String id;
   final String name;
   final DateTime createdAt;
+  final GameColor color;
+  final int score;
   final List<Player> members;
 
   Team({
     String? id,
     required this.name,
     DateTime? createdAt,
+    this.color = GameColor.blue,
+    this.score = 0,
     required this.members,
   }) : id = id ?? const Uuid().v4(),
        createdAt = createdAt ?? clock.now();
 
   @override
   String toString() {
-    return 'Team{id: $id, name: $name, members: $members}';
+    return 'Team{id: $id, name: $name, color: $color, score: $score, members: $members}';
   }
 
   Team copyWith({
     String? id,
     String? name,
     DateTime? createdAt,
+    GameColor? color,
+    int? score,
     List<Player>? members,
   }) {
     return Team(
       id: id ?? this.id,
       name: name ?? this.name,
       createdAt: createdAt ?? this.createdAt,
+      color: color ?? this.color,
+      score: score ?? this.score,
       members: members ?? this.members,
     );
   }
@@ -44,6 +53,8 @@ class Team {
           id == other.id &&
           name == other.name &&
           createdAt == other.createdAt &&
+          color == other.color &&
+          score == other.score &&
           const DeepCollectionEquality().equals(members, other.members);
 
   @override
@@ -51,6 +62,8 @@ class Team {
     id,
     name,
     createdAt,
+    color,
+    score,
     const DeepCollectionEquality().hash(members),
   );
 
@@ -58,12 +71,16 @@ class Team {
     : id = json['id'],
       name = json['name'],
       createdAt = DateTime.parse(json['createdAt']),
+      color = GameColor.values.byName(json['color'] ?? GameColor.blue.name),
+      score = json['score'] ?? 0,
       members = []; // Populated during import via DataTransferService
 
   Map<String, dynamic> toJson() => {
     'id': id,
     'name': name,
     'createdAt': createdAt.toIso8601String(),
+    'color': color.name,
+    'score': score,
     'memberIds': members.map((member) => member.id).toList(),
   };
 }