Review Test Failures

Classify failing CI checks and tests associated with a PR, compare them against the base branch, and decide whether the PR's CI is ready to merge. The goal is to tell the author whether failures are likely caused by the PR changes or likely unrelated (flaky tests, infrastructure, missing baselines, or failures already present on the base branch), and to summarize that into one overall merge-readiness verdict.

This is the automated, deterministic counterpart to the interactive azdo-build-investigator skill. Both reason from the same shared facts (see below); this skill additionally runs in the gh-aw runtime where the ci-analysis plugin is not available, so it relies entirely on the gathered context files.

Shared MAUI CI facts