Comparable is a recursive generic constraint (Go 1.26) that requires types to be comparable with themselves.

Int demonstrates implementing Comparable[C Comparable[C]] (Go 1.26 recursive generics).

Node interface defines an interface for nodes in the linked list so we can iterate them easier.

SortedList is a linked list that maintains elements in ascending order. It uses the Go 1.26 recursive generic type feature to constrain T to types tha

endNode indicates end of the linked list and it will reduce our checks by automatically handles the edge conditions.