style: Fix linting issues in recursive delete test file

- Fix import ordering
- Remove boolean equality comparison
- Add missing newline at end of file

All ruff and mypy checks now pass.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

.gitignore

@@ -1,4 +1,5 @@
 # Python
+ror-data-importer/
 __pycache__/
 *.py[cod]
 *$py.class