- Centralize CLI text strings using the i18n module for localization
- Refactor `createCommand` and `createCli` to improve modularity
- Update logging and error messages to use translated strings
- Add error handling and rollback logic for unit file writes
- Prevent partial file writes by removing created files on failure
- Update tests to reflect new return type and error handling
- Add tests for writing .service and .timer files with `writeUnitFiles`
- Add tests for resolving target paths with `resolveUnitTargetPath`
- Ensure proper file creation, content validation, and path resolution