Section 26.2 - The Edmonds-Karp loop (legacy compatibility path)
Third-edition-numbered compatibility path for the Edmonds-Karp loop. The canonical
fourth-edition source is
CLRSLean.FourthEdition.Chapter_24.Section_24_2_Edmonds_Karp.S2_EK_Loop;
this module forwards to it so legacy imports keep working during the
compatibility period (see docs/migrations/clrs4.md).