CMB Power Spectra Beyond ΛCDM: A Zero-Free- Parameter Improvement from Spin-Dependent Berry Phase Geometry (AWA XVI)

We apply the Angular World Architecture (AWA) geometric framework to the Planck 2018 CMB power spectra (TT, EE, TE; 613 plik_lite bins with full covariance). A spin-dependent Berry phase shifts acoustic peaks by ±0.18 multipoles — positive for temperature, negative for E-mode polarization, zero for the cross-spectrum — improving the ΛCDM fit by Δχ² = −0.903 (ΔBIC = −0.90) with zero free parameters. The coupling constant g_MAM = 0.40 is fixed by particle physics (PDG), not fitted to CMB data. Robustness is confirmed across 97% of the Planck posterior. Four falsifiable predictions for CMB-S4 are provided. All code is included.