- Added functionality to persist `.env` files to a private sidecar directory before Git checkout replacement.
- Enhanced recovery of `.env` files from the sidecar after cloning, with fallback to templates if necessary.
- Introduced validation for `envFilePath` to ensure it is an absolute path and integrated it into Docker run commands.
- Updated deployment routes and rollback services to support the new environment file handling.
- Added regression tests to verify the persistence and recovery of environment variables across rebuilds.