fix: Add custom fields, translations, add app logs to login routes

lib/core/bloc/transient_error.dart

@@ -0,0 +1,16 @@
+import 'package:paperless_api/paperless_api.dart';
+
+sealed class TransientError extends Error {}
+
+class TransientPaperlessApiError extends TransientError {
+  final ErrorCode code;
+  final String? details;
+
+  TransientPaperlessApiError({required this.code, this.details});
+}
+
+class TransientMessageError extends TransientError {
+  final String message;
+
+  TransientMessageError({required this.message});
+}