Throwaway probe repository for GitHub Merge Queue behaviour.
It exists to answer questions that cannot be answered from documentation or
mocks: what the merge_group event payload actually contains, whether the
Actions GITHUB_TOKEN can read repository.mergeQueue over GraphQL, and how
merge-group commits map back to their source pull requests.
Nothing here is real. Do not add scenario data, personal information, email addresses, tokens, secrets, or anything copied from another repository. Dummy README text, probe workflows, and throwaway pull requests only.