Verify a release branch is provably merged into the trunk (default branch) via the squash-aware GitHub PR merge oracle, then prune merged local and remote feature branches and stale git worktrees. Squash-merge aware — uses GitHub PR merge state as the merge oracle, not commit ancestry. Use when the
Verify a release branch is provably merged into the trunk (default branch) via the squash-aware GitHub PR merge oracle, then prune merged local and remote feature branches and stale git worktrees. Squash-merge aware — uses GitHub PR merge state as the merge oracle, not commit ancestry. Use when the user asks to clean up branches after a deploy, prune worktrees, remove merged branches, or confirm n