PARIS — France’s plan for the 2024 Olympics was a gamble fraught with risks. For the most part, the big bets paid off.

       Before the Games got underway, there were concerns about potential terrorist attacks, cyberattacks, crowd crushes, labor strikes, political tensions, heat waves, bedbugs and the viability of hosting swimming competitions in the Seine. It didn’t help that a different daring gamble by President Emmanuel Macron — to stake his party’s future on early legislative elections — resulted in political chaos as international athletes and fans were about to arrive.