- Enhanced cdnDelete to recursively delete folders with per-file tracking and error counts
- Added optional 'json' mode parameter to cdnSyncUpload/cdnSyncDownload for output format control
- Implemented real-time sync event callbacks for progress visualization with colored terminal output
- Added bash() as primary function with exec_cmd() as alias for backward compatibility
- Introduced SyncEvent type for action tracking (uploading/downloaded/skipped/deleted/error)
- Updated function tests to support new mode parameter