build(apm): roll out shared Skill updates

[aoirint]

Warning

This pull request was created with assistance from LLMs.

Summary

• Roll out the shared Agent Skills from aoirint/skills@8cedd768.
• Replace retired GitHub collaboration Skill names with github-workflow.
• Add the dedicated GitHub Actions and test quality Skills where applicable.
• Align workflow, job, Composite Action, and step names with the current shared guidance.

Related Issues

None.

Notes for reviewers

Canonical source:

• aoirint/skills#71
• aoirint/skills#72
• aoirint/skills#73
• aoirint/skills#74
• aoirint/skills#75
• aoirint/skills#76

The selected upstream commit has not completed the ordinary seven-day cooldown. The maintainer explicitly requested immediate rollout in this task. This exception applies only to the direct aoirint/skills dependency; source provenance, immutable pinning, license, lock hashes, deployed output, and CI changes were still reviewed.

Proposed merge attribution

• Co-authored-by: Codex <noreply@openai.com>
  • Basis: Codex prepared and verified the Skill deployment and GitHub Actions alignment.
  • Status: Included.

AI disclosure

Codex updated the APM selection and deployment, aligned repository-owned GitHub Actions with the current shared Skill guidance, and ran the verification below.

Testing

Automated checks

• apm install --frozen
• apm audit --ci
• actionlint -color where GitHub Actions are present
• pinact run --check --min-age 7 where GitHub Actions are present
• git diff --check

AI-assisted inspections

• Request: Roll out recent shared Skill changes and reflect them in repository-owned automation.
  • AI-assisted result: Confirmed the exact upstream pin, selected the split GitHub collaboration and Actions Skills, retained repository-specific workflow behavior, and aligned lifecycle naming without adding cross-repository coupling.

Manual checks

None.