Investigate failing REMOTE CI runs on GitHub Actions: find the failed run, pull the failed-step logs with gh, identify the root cause (compile error, test failure, lint, missing secret, timeout), and recommend a fix. Read-only: it does not commit, push, or edit. Use when CI is red, a GitHub Actions run failed, or the user asks "why did the pipeline fail". Do NOT use for local build/test/runtime failures on your machine (use diagnose-runtime); do NOT apply the fix and re-ship (use fix-and-retry) -- this skill investigates and recommends only.
