🎨 Use feature based folder structure

lib/developers/developers_models/custom_app_secret.dart

@@ -0,0 +1,19 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'custom_app_secret.freezed.dart';
+part 'custom_app_secret.g.dart';
+
+@freezed
+sealed class CustomAppSecret with _$CustomAppSecret {
+  const factory CustomAppSecret({
+    required String id,
+    required String? secret,
+    required DateTime createdAt,
+    String? description,
+    int? expiresIn,
+    bool? isOidc,
+  }) = _CustomAppSecret;
+
+  factory CustomAppSecret.fromJson(Map<String, dynamic> json) =>
+      _$CustomAppSecretFromJson(json);
+}