The New York Gaming Commission on Monday approved a set of proposed sports betting regulations for four existing upstate casinos, potentially setting the stage for the launch of legalized sports gambling in the Empire State. The comprehensive regulations address a wide range of gaming issues from tax and compliance requirements to sports pool licensing guidelines, as well as broad wagering restrictions. The main takeaway from Monday’s meeting, however, centers on a provision that was not discussed. The regulations do not include any guidelines for mobile sports betting, a subject that has garnered intense debate within the state as New York…