[Bug] Can't get expected taskAttemptId

### Code of Conduct

- [x] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)

### Search before asking

- [x] I have searched in the [issues](https://github.com/apache/incubator-uniffle/issues?q=is%3Aissue) and found no similar issues.

### Describe the bug

All writer has been finished sucessfully, but the reader initialization failed on the error message of `Can't get expected taskAttemptId` .

### Affects Version(s)

master

### Uniffle Server Log Output

```logtalk

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### Uniffle Engine Log Output

```logtalk

```

### Uniffle Server Configurations

```yaml

```

### Uniffle Engine Configurations

```yaml

```

### Additional context

_No response_

### Are you willing to submit PR?

- [x] Yes I am willing to submit a PR!

No files, tests, or entry points are named. Start with the reported reader-initialization error and screenshots, then gather the missing Uniffle server and engine logs and configurations to trace the taskAttemptId lookup. Done means identifying the failure cause and confirming that reader initialization succeeds after the fix.

Written by the indexing model from the issue text.