保存前端调整前的当前状态

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

app.py

@@ -91,6 +91,8 @@ class Controller:
             return self.store.reconcile(body)
         if route == 'resolve':
             return self.store.resolve(body)
+        if route == 'remove':
+            return self.store.remove(body)
         if route == 'history':
             records = body.get('records')
             if not isinstance(records, list):