Agent X2 · Split-setting logical repairs and exceptional fusion

Repaired all three errors in this cluster: rational fixed points do not force component stability; the GL2 nonsplit-full-torus dead end needs no categorical field transfer; inverse-sign fusion gives conjugacy rather than equality. Replaced the ineffective-factor quotient sketch by a dominant-lift proof. The affected scope conclusions survive with the restrictions recorded in S2-5.

• S2-1 · Rational points need not fix components
• S2-2 · Torus candidates need no field transfer
• S2-3 · Fusion gives conjugacy, not equality
• S2-4 · Ineffective factors need no quotient
• S2-5 · The split obligation remains explicit