asset list is always empty after reconnect

### Prerequisites

- [x] I am running the latest version of ComfyUI
- [x] I have searched existing issues to make sure this isn't a duplicate
- [x] I have tested with all custom nodes disabled ([see how](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled))

### What happened?

as it says on the tin

### Steps to Reproduce

1. generate an image with "Save Image" node
2. open assets list (it will be there)
3. restart the server
4. open assets list (it is empty)

### How is this affecting you?

Feature doesn't work as expected

### ComfyUI Frontend Version

git commit 9bc893c5bbd2838bdd15ebd40e3a3e548ce3e4f0

### Browser

Firefox

### Console Errors

```javascript

```

### Logs

```shell

```

### Additional Context

_No response_

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-7168-asset-list-is-always-empty-after-reconnect-2bf6d73d3650815ba8e7de3c31465aa4) by [Unito](https://www.unito.io)