Lands a finished `.claude/worktrees/<name>` worktree on the branch the main checkout has checked out, local `main` in the usual case, in one command – closes the ticket and commits the close on a ticket branch, squashes the branch to one commit, merges it fast-forward only, then removes the worktree and its branch. Use when the user says "wrap up the worktree", "land this worktree", "finish this branch", or runs `/wrap-up-worktree`. Refuses on a dirty checkout, a base branch that moved, or a pending task, before anything changes. Never pushes.
