[engine-failure] PROJ-283-statistical-analysis-of-publicly-availab @ tasks: RuntimeError

Automated report (spec 023 / FR-016) — an unexpected engine failure occurred while processing **PROJ-283-statistical-analysis-of-publicly-availab** at stage `tasks`.

```
RuntimeError: LLMReviewer[ordering]: review frontmatter has neither `verdict:` nor `concerns:`/`action_items:` — a contentless/truncated review MUST NOT count as acceptance (false-convergence guard). First 200 chars: '```yaml\n---\nreviewer_name: ordering\nreviewer_kind: llm\nstage: tasked\nartifact_path: projects/PROJ-283-statistical-analysis-of-publicly-availab/specs/001-statistical-analysis-of-publicly-availab/tasks.'
```

The project remains schedulable; it will retry on its normal cadence and recover once the underlying defect is fixed. Closing this issue does not require any project-state change.

Start from the LLMReviewer ordering failure at stage `tasks` and inspect the generated review under `projects/PROJ-283-statistical-analysis-of-publicly-availab/specs/001-statistical-analysis-of-publicly-availab/tasks.`. Trace why the review frontmatter is truncated or lacks `verdict:` and `concerns:`/`action_items:`; done means contentless reviews cannot count as acceptance and the retry no longer raises this error.

Written by the indexing model from the issue text.