[Bug] Data Import failed with Error invalid Token when importing data through Hubble UI.

### Bug Type (问题类型)

others (please comment below)

### Before submit

- [x] I had searched in the [issues](https://github.com/apache/hugegraph-toolchain/issues) and found no similar issues.

### Environment (环境信息)

- Server Version: v1.x.x
- Toolchain Version: v1.x.x
- Data Size: xx vertices, xx edges

### Expected & Actual behavior (期望与实际表现)

Expected to load data through Hubble UI Using Import data feature

### Vertex/Edge example (问题点 / 边数据举例)

```javascript

```

### Schema [VertexLabel, EdgeLabel, IndexLabel] (元数据结构)

```javascript

```

Start with the Hubble UI data-import flow and reproduce the reported invalid-token error using the available server and toolchain versions. Gather the actual versions, import data, schema, and token context that are missing from the report; done means the import completes through the UI without the invalid-token failure.

Written by the indexing model from the issue text.