fix: Perform migration after restoring data from gist

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.6.2",
+  "version": "2.6.3",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and ShadowRocket.",
   "main": "src/main.js",
   "scripts": {

backend/src/restful/index.js

@@ -7,6 +7,7 @@ import { version as substoreVersion } from '../../package.json';
 import { ENV, HTTP } from '@/vendor/open-api';
 import express from '@/vendor/express';
 import Gist from '@/utils/gist';
+import migrate from '@/utils/migration';
 import $ from '@/core/app';
 
 import registerSubscriptionRoutes from './subscriptions';
@@ -124,6 +125,8 @@ async function gistBackup(req, res) {
                         $.cache = content;
                         $.persistCache();
                     }
+                    // perform migration after restoring from gist
+                    migrate();
                     break;
             }
             success(res);