feat: Implement initial authentication, multi-environment support, and core app infrastructure.

lib/features/auth/data/models/user_model.g.dart

@@ -0,0 +1,26 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'user_model.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+_UserModel _$UserModelFromJson(Map<String, dynamic> json) => _UserModel(
+  id: json['id'] as String,
+  email: json['email'] as String,
+  role: json['role'] as String,
+  firstName: json['firstName'] as String?,
+  lastName: json['lastName'] as String?,
+  avatar: json['avatar'] as String?,
+);
+
+Map<String, dynamic> _$UserModelToJson(_UserModel instance) =>
+    <String, dynamic>{
+      'id': instance.id,
+      'email': instance.email,
+      'role': instance.role,
+      'firstName': instance.firstName,
+      'lastName': instance.lastName,
+      'avatar': instance.avatar,
+    };