name: thrunt-cleanup description: Archive accumulated phase directories from completed milestones
<objective> Archive phase directories from completed milestones into `.planning/milestones/v{X.Y}-phases/`.Use when .planning/phases/ has accumulated directories from past milestones.
</objective>
<execution_context> @.github/thrunt-god/workflows/cleanup.md </execution_context>
<process> Follow the cleanup workflow at @.github/thrunt-god/workflows/cleanup.md. Identify completed milestones, show a dry-run summary, and archive on confirmation. </process>