Jamal Crawford scored 51 points in his final game with the Phoenix Suns in April 2019, waited more than a year for his next N.B.A. opportunity, then, after turning 40 in March, appeared in only one game in the N.B.A. bubble with the Nets because of a hamstring injury. “I have no regrets at all,” Crawford said Monday night after returning to his home in the Seattle area.