pub fn link_worktree(repo: &Repository, worktree_name: &str) -> Result<()>Expand description
Plant gh-stack/gh-stack.lock symlinks for worktree_name, pointing at the canonical
<common-dir>/gh-stack store. Idempotent; never replaces a real file — see
migrate_worktree for that. Callers gate this on StackModel::GhStack themselves (see
workon new’s hook); planting is harmless under any other model, but pointless.