By: Valentin Hirschi <valentin.hirschi@gmail.com>
Recognize independent massless bubbles in recursive boundaries Use FeynKit's exact affine mappings to recognize two unit-power massless bubbles and reuse the existing one-loop Gamma terminal. Single-mass E1 boundaries then avoid recursive AMF reduction while unsupported families retain their existing fallback. Observe peeled-child visits through TerminalProvider in the complex-mass regression, since an exact child terminal need not call the reducer. Validation: eight banana unit tests, all five nonignored single-mass tests, and 24 original/candidate/Mathematica comparisons, including fresh high precision factors and independent old recursive values. The long ignored Laurent test was not run.