fix: update test to match improved error message format

- Updated test_localize_chunk_bad_request to expect status code in error message
- Ensures test matches the improved error message format from previous fix

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

Co-Authored-By: Claude <[email protected]>

Author: maxprilutskiy

tests/test_engine.py

@@ -159,7 +159,7 @@ def test_localize_chunk_bad_request(self, mock_post):
         mock_response.reason = "Bad Request"
         mock_post.return_value = mock_response
 
-        with pytest.raises(ValueError, match="Invalid request"):
+        with pytest.raises(ValueError, match="Invalid request \\(400\\)"):
             self.engine._localize_chunk(
                 "en", "es", {"data": {"key": "value"}}, "workflow_id", False
             )