SAN JOSE, Calif. — A few days before Amy Schneider taped her first “Jeopardy!” game, she decided to literally use her own voice, not the higher-pitched, “feminized” voice she learned after she began to transition several years ago. More than anything, the Oakland software manager wanted to be herself on national TV: A transgender woman, yes, but also an engaging, whip-smart person whose lifelong dream was to triumph on “Jeopardy!” Schneider’s authentic self helped her to win a record 40 games, earn $1.3 million and become one of the most popular champions in the venerable game show’s 58-year h…