As some consumers pull back on spending amid economic uncertainty, fast-casual restaurant chains are leaning on rewards programs to pull them back in.Loyalty programs, which offer discounts or added perks for returning customers, have transitioned from being a nice bonus for restaurants to a must-have. As cost-cautious diners prioritize value, brands like Chipotle, Starbucks, Cava and others are utilizing rewards to keep customers coming back and building habits that go beyond the occasional coupon."In toug ...