Rebuild the affected vibeship-derived skills from the pinned upstream
snapshot instead of leaving the truncated imported bodies on main.
Refresh the derived catalog and plugin mirrors so the canonical skills,
compatibility data, and generated artifacts stay in sync.
Refs #473
Add a maintainers script to safely promote high-confidence legacy risk labels from unknown to concrete values, cover it with tests, and regenerate the canonical skill artifacts and plugin copies. This reduces the legacy unknown backlog without forcing noisy classifications that still need manual review.
