About 90 minutes before the NBA season opener Monday night, Chuck Hayes routinely goes about the pregame ritual. Signing ticket envelopes for about 40 of his Modesto friends. Greeting his new Sacramento Kings teammates. Making sure his uniform is in order. “A little nervous,” he admits, “but after the game starts, I’ll be OK.” Hayes, 28, has been through it all before, and opening-night jitters are felt by veterans and rookies alike. But this night is different. Very different.