Imports

30.3 FFT 2. Iterative Stage Execution (legacy compatibility path)

Third-edition-numbered compatibility path for this module. The canonical fourth-edition source is CLRSLean.FourthEdition.Chapter_30.Section_30_3_Efficient_FFT_Implementations.IterativeFFT.Definitions; this module forwards to it so legacy imports keep working during the compatibility period (see docs/migrations/clrs4.md).