MSFCM Paper IX: Cross-Correlation of the LoTSS DR2 Jet–Filament Anisotropy Tensor Q22 with the Planck DR4 CMB Polarization Power Spectra — A Double Null Result in E-mode and B-mode Confirming the Structural Origin of the SGCC Alignment Effect

Paper IX of the MSFCM series. We cross-correlate the projected Q22 jet–filament anisotropy tensor (LoTSS DR2, N=120,331 AGN–filament pairs) with the Planck DR4 CMB E-mode and B-mode polarization maps using the spin-(0,2) MASTER pseudo-Cl estimator (NaMaster). Results: chi2_XE=0.01, chi2_XB=0.00, both 9 d.o.f., 0.0sigma. Double null result fully consistent with ΛCDM. B-mode null rules out parity-violating cosmological spin memory at current sensitivity, placing epsilon_pv=0. Pipeline: NaMaster v2.6, healpy, WSL2 Ubuntu. Companion to Paper VIII (MN-26-1471-P).