[self-care:open-source-failures] gh-aw-cao live target-authority misconfiguration blocks maintenance workflows

`githubnext/gh-aw-cao` has repeated live-mode pre-activation failures because target authority for live execution is missing or invalid, blocking AW maintenance and Dependabot workflows before they can act.

**Action:** The `githubnext/gh-aw-cao` maintainer should correct `.github/workflows/cao.json` target-authority entries for the affected live packages and rerun the cited workflows; accept when fresh runs of the affected workflows pass CAO control precompute without target-authority errors.

Critical findings:
- Severity: `P1` because the same actionable signature recurred 9 times across 3 workflows in the bounded snapshot.
- Repository: `githubnext/gh-aw-cao`.
- Affected workflows:
- `.github/workflows/dependabot-release-train-updater.lock.yml` — 4 runs with `Target authority missing: add .github/workflows/cao.json to the target default branch for live mode` and 1 run with `Target authority file must declare version 1 and target-authority.packages.dependabot.authority`.
- `.github/workflows/aw-maintenance-compiler-security.lock.yml` — 3 runs with the same missing-authority message.
- `.github/workflows/aw-maintenance-upgrade.lock.yml` — 2 runs with the same missing-authority message.
- Representative runs:
- https://github.com/githubnext/gh-aw-cao/actions/runs/33957936352
- https://github.com/githubnext/gh-aw-cao/actions/runs/33958965076
- https://github.com/githubnext/gh-aw-cao/actions/runs/33958954356
- Evidence-supported cause: live-mode target authority on the target default branch is absent or malformed for the affected packages.
- Confidence: high.

Agent prompt
Update `.github/workflows/cao.json` in `githubnext/gh-aw-cao` so live target authority is valid for the affected packages. Ensure the file declares version 1 and includes the required `target-authority.packages` entries for AW maintenance and Dependabot live workflows. Keep changes minimal, validate the JSON, and confirm success by rerunning the affected workflows until CAO control precompute no longer reports target-authority errors.

Bounded evidence
The snapshot only includes the newest 100 failed runs from the last 168 hours, but within that bound this signature recurred consistently at pre-activation, specifically in the `Run CAO control precompute` step.

### Control Plane
- Correlation ID: `33960667980-215`
- Central repository: `githubnext/gh-aw-cao`
- Control-plane run: https://github.com/githubnext/gh-aw-cao/actions/runs/33960667980

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> - [x] expires on Sep 19, 2026, 10:35 AM UTC

Start with .github/workflows/cao.json and compare its target-authority structure with the affected Dependabot and AW maintenance workflow runs. Validate the JSON and rerun dependabot-release-train-updater.lock.yml, aw-maintenance-compiler-security.lock.yml, and aw-maintenance-upgrade.lock.yml; done means CAO control precompute passes without target-authority errors.

Written by the indexing model from the issue text.