chore: screenshots

lib/data/model/app/backup.dart

@@ -1,6 +1,7 @@
 import 'dart:convert';
 import 'dart:io';
 
+import 'package:toolbox/core/persistant_store.dart';
 import 'package:toolbox/data/model/server/private_key_info.dart';
 import 'package:toolbox/data/model/server/server_private_info.dart';
 import 'package:toolbox/data/model/server/snippet.dart';
@@ -60,8 +61,8 @@ class Backup {
         spis = Stores.server.fetch(),
         snippets = Stores.snippet.fetch(),
         keys = Stores.key.fetch(),
-        dockerHosts = Stores.docker.toJson(),
-        settings = Stores.setting.toJson();
+        dockerHosts = Stores.docker.box.toJson(),
+        settings = Stores.setting.box.toJson();
 
   static Future<String> backup() async {
     final result = _diyEncrypt(json.encode(Backup.loadFromStore()));

lib/data/model/app/sync.dart

@@ -0,0 +1,24 @@
+import 'dart:async';
+
+class SyncResult<T, E> {
+  final List<T> up;
+  final List<T> down;
+  final Map<T, E> err;
+
+  const SyncResult({
+    required this.up,
+    required this.down,
+    required this.err,
+  });
+
+  @override
+  String toString() {
+    return 'SyncResult{up: $up, down: $down, err: $err}';
+  }
+}
+
+abstract class SyncIface<T> {
+  /// Merge [other] into [this], return [this] after merge.
+  /// Data in [other] has higher priority than [this].
+  FutureOr<void> sync(T other);
+}

lib/data/model/app/syncable.dart

@@ -1,9 +0,0 @@
-abstract class SyncAble<T> {
-  /// If [other] is newer than [this] then return true,
-  /// else return false
-  bool needSync(T other);
-
-  /// Merge [other] into [this],
-  /// return [this] after merge
-  T merge(T other);
-}