III.R41 — Light Cone Consistency

The EW coupling κ(A,B) = ι_τ²(1−ι_τ) aligns the temporal arrow (A-sector on τ¹) with spatial direction (B-sector on T²). Combined with split-complex light cones and Global Cartesian Gluing, this produces globally consistent light cones. Weinberg angle derivation predicted for Book IV.