Paper CCXXXVIII: Neutron Star Merger Neutrino Flavor Conversion as a Tracer of Brane Fluid Viscosity and Fano Crystal Packing Density

v2 (5 June 2026) -- ERRATUM. Corrects the LIGO bounce-dark-matter (BDM) binary mass-ratio value. The published v1 wrote the factor-~14 r-process match as 'lambda5/lambda1 = 13.928 = sqrt(q)' and stated 'q_LIGO = 193.99' (= 13.928^2) in section 4.3 / eq (3) and in the abstract. This is corrected: the framework's predicted BDM binary mass ratio is q_LIGO = (2+sqrt3)^2 = lambda5/lambda1 = (2+sqrt3)/(2-sqrt3) = 13.928 -- the mass ratio ITSELF, from the extreme Klein-ladder (G2 permutohedron Laplacian) eigenvalues lambda_max = 2+sqrt3 and lambda_min = 2-sqrt3. The spurious square-root has been removed in all three places and 193.99 corrected to 13.928, consistent with Papers CLXXV and CCXXII and with this paper's own cited reference [17] (title: 'LIGO binary dark matter mass ratio q = (2+sqrt3)^2'). The physics is otherwise unchanged: the factor-~14 lanthanide / heavy r-process enhancement reported by Qiu, Radice, Richers & Bhattacharyya (PRL 135, 091401, 2025) matches lambda5/lambda1 = 13.928; the factor-2 lanthanide enhancement matches lambda6/lambda3 = 2; and the ~20% post-merger binding-energy enhancement matches f_bulk,II = 1 - 8/pi^2 = 18.94%. The matches are forced by the G2 algebraic structure rather than fit. Bharathi Dasan Jagadeesan, M.D., University of Minnesota CMRR. ORCID 0000-0002-1143-941X. CC-BY-4.0.