The Boys and Girls Clubs in the South Bend, Indiana area had to turn away 800 students from its summer learning program last year — even though many of the children who didn’t get a spot were academically two years behind after the pandemic. That bothered Jacqueline Kronk, CEO of the clubs in St. Joseph County, so she leapt at a chance to add students this summer as part of statewide expansion of a promising Indianapolis effort. Started in 2021 …