gh-aw skill smoke test

Minimal public repro for testing whether a Copilot-based gh-aw workflow can invoke an APM-restored skill.

What this repo tests

• gh-aw workflow source in .github/workflows/gh-aw-skill-smoke.md.
• engine: copilot.
• APM import of one public Elastic Docs Skill: docs-check-style.
• A minimal prompt that attempts exactly one skill invocation and reports whether it worked.

Expected behavior

When the workflow runs through workflow_dispatch, it should:

1. Read this README.md.
2. Attempt to invoke skill(skill: docs-check-style).
3. Report success or failure through noop.

The workflow intentionally avoids any fallback review logic so the result focuses on skill invocation only.

Run it

Before triggering the workflow, configure the COPILOT_GITHUB_TOKEN repository secret.

Then run the smoke test from the Actions tab by using workflow_dispatch on Skill smoke test.

The workflow should:

1. Read README.md.
2. Attempt skill(skill: docs-check-style).
3. Return a noop result that says whether the skill invocation succeeded or failed, without falling back to a manual review.