[self-care:open-source-failures] Fix recurring safe-outputs processing failures in Dev Practices / Well-Architected

`Dev Practices / Well-Architected` in `githubnext/gh-aw-cao` repeatedly failed in the `safe_outputs` job at `Process Safe Outputs`, indicating the workflow is reaching output processing and then failing during the safe-output phase. The bounded snapshot shows multiple occurrences, so this is a recurring delivery-path defect rather than an isolated run.

**Action:** The workflow owner should reproduce and fix the `safe_outputs` processing failure for `Dev Practices / Well-Architected`; accept when a rerun completes the `Process Safe Outputs` step successfully.

Critical findings:
- Severity: P1 because the same actionable job/step signature recurred in multiple runs.
- Affected workflow: `Dev Practices / Well-Architected` (`.github/workflows/software-development-practices-github-well-architected.lock.yml`).
- Normalized signature: `safe_outputs` job → `Process Safe Outputs`.
- The bounded snapshot does not include a failure message, so the exact cause is not evidenced here and needs log review.

Recommended bounded fix

Inspect the representative run logs for the `safe_outputs` job, identify the concrete validation or transport failure in `Process Safe Outputs`, apply the minimal workflow or output-shape correction, and rerun the workflow once to verify the step succeeds.

Representative runs

- https://github.com/githubnext/gh-aw-cao/actions/runs/34009466731
- https://github.com/githubnext/gh-aw-cao/actions/runs/34009458686
- https://github.com/githubnext/gh-aw-cao/actions/runs/34009450649
- https://github.com/githubnext/gh-aw-cao/actions/runs/34009441564

Agent prompt
Review the `safe_outputs` job failures for `Dev Practices / Well-Architected` in `githubnext/gh-aw-cao`. Use the representative runs to identify the first concrete error in `Process Safe Outputs`, prepare the smallest workflow or payload fix that addresses it, and define the single rerun needed to confirm the repair.

### Control Plane
- Correlation ID: `34011290070-262`
- Central repository: `githubnext/gh-aw-cao`
- Control-plane run: https://github.com/githubnext/gh-aw-cao/actions/runs/34011290070

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> - [x] expires on Sep 20, 2026, 4:30 AM UTC

Start with .github/workflows/software-development-practices-github-well-architected.lock.yml and inspect the representative run logs for the safe_outputs job, especially Process Safe Outputs. Identify the first concrete validation or transport failure, apply the smallest workflow or output-shape correction, and rerun the workflow to confirm that Process Safe Outputs completes successfully.

Written by the indexing model from the issue text.