- Add `worktree:cleanup <name>` command that safely removes a worktree,
its branch, and instance data. Idempotent and safe by default — refuses
to delete branches with unique unmerged commits or worktrees with
uncommitted changes unless --force is passed.
- Support PAPERCLIP_WORKTREES_DIR env var as default for --home across
all worktree commands.
- Support PAPERCLIP_WORKTREE_START_POINT env var as default for
--start-point on worktree:make.
- Auto-prefix worktree names with "paperclip-" if not already present,
so `worktree:make subissues` creates ~/paperclip-subissues.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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