Section 26.5 - Relabel-to-front (legacy compatibility path)
Third-edition-numbered compatibility path for the relabel-to-front operation
count and the generic push-relabel O(V²E) bound. The canonical fourth-edition
source is
CLRSLean.FourthEdition.Chapter_24.Section_24_5_Relabel_To_Front;
this module forwards to it so legacy imports keep working during the
compatibility period (see docs/migrations/clrs4.md).