v0.2.0

Added

• rename command (alias: mv) to rename worktrees and branches with auto-increment support
  • Works from within a worktree: cool-branch rename [new-name]
  • Works from main repository: cool-branch rename <branch-name> [new-name]
  • mv command as a convenient Unix-style alias for rename
• where command to get worktree path for a given branch (for shell navigation)
• last command to get the most recently created worktree path (for shell navigation)
• GitHub Actions CI workflow with matrix testing on Node.js 18, 20, and 22