🧪 test(predict): add test for predict rust error path

[edithatogo]

🎯 What: Adds a test case for pymars.runtime._predict_with_rust() to ensure it properly handles ValueError and TypeError exceptions during _coerce_rows_for_rust execution, as expected by the python fallback logic.

📊 Coverage: Specifically covers the except (TypeError, ValueError): return None block inside pymars.runtime._predict_with_rust().

✨ Result: Increased code coverage by adding the missing test path and improving validation of the failure-propagation pipeline for rust predictions. Also performed a pre-commit pass fixing some trailing newlines across the repo.

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PR created automatically by Jules for task 12315012125836733604 started by @edithatogo

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[github-actions]

🎉 Welcome @edithatogo! Thank you for your first pull request to mars! We're excited to have you as a contributor. Our team will review your PR soon. In the meantime, please ensure all CI checks pass.