Inventory PR readiness and stack dependencies #319
- MA
Adds a read-only inventory of every eligible open PR, including drafts and stacked branches. It advises rebase, conflict repair, CI repair, waiting, or verification from observed head/base SHAs and current-head CI; parents appear before descendants.
Scan races, same-head CI reruns, uncertain mergeability, and ambiguous stacks cannot produce ready advice. This is the first coordinator slice: it does not dispatch agents, push branches, post comments, or apply readiness labels. Required-check enforcement and durable scheduling follow separately.
Run: `GITHUB_REPOSITORY=githubnext/chopin node scripts/pr-maintenance/run.mjs inventory`.
Validation: 31 maintenance tests pass; `bun run fix` and `bun run ci` pass. Independent review found two races; both have regression tests and passed re-review.

MaggieAppletonadded-to-stacklast month on GitHub
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