TOKYO—Sunisa Lee came to Japan to win a gold medal. And she did. Just not the one she really, really wanted. The 18-year-old from Minnesota is a revelation on uneven bars, where her routines are an intricate series of connections and releases completed with so much ease it looks like she’s making it all up on the fly. Only she isn’t. Her mastery is the result of years of hard work. She’s one of the best in the world on it, and she showed it during the all-around final, where her electric set helped her edge Rebeca Andrade of Brazil and become the fifth straight American woman to claim the Olympic title. Three days and a crush of fame later, she wasn’t quite right. Admitting she’d become distracted by the attention surrounding her triumph, connections that typically come so easily were labored during Sunday’s event finals, if they came at …