PM Skill Iterate This skill improves an existing pm-skills skill by applying targeted changes based on input you provide. It reads the current skill files, proposes changes as before/after previews grouped by file, and writes them on your confirmation. After applying changes, it suggests a version bump class and offers to update HISTORY.md. The iterator accepts any of these as input: - A validation report from - Direct feedback ("the template is missing section X") - A convention change ("all skills now need a Limitations section") - A general improvement request ("make the example more reali…