First-pass case conversion: test one representative paragraph

Before changing a full document, convert a harmless paragraph containing ordinary words, an acronym, a proper name, punctuation, and any relevant Unicode letters. Compare the result with the desired style and list exceptions. If the tool mishandles an identifier or locale-sensitive name, adjust the workflow before scaling up. Keep the original text for comparison. A representative test reveals more than a single easy word, but the final document still needs review.