- Added an `incremental` flag to the `SyncbackCommand` to allow for preserving existing file structure and middleware formats during syncback operations.
- Enhanced the `syncback_loop` function to differentiate between clean mode and incremental mode, ensuring orphaned files are removed only in clean mode.
- Updated logging to reflect the mode of operation during syncback.
- Introduced new tests to validate the behavior of clean mode versus incremental mode, ensuring proper handling of orphaned files and preservation of existing structures.
