Primitive Mass-Energy Equation via ZIC: Einstein E = mc² as a Special Case E∆ = η · c² and ∆η(x, u) = 0, η ∈ ∆ → ∆ = 0

E = mc² treats mass m as primitive. We show m is not primitive.The relation depends on implicit assumptions. When these assumptions are removed,E = mc² degenerates into a messy, ill-defined zero where m loses definition. Consequently,readings derived from E = mc² to date have been fundamentally misleading, mistaking aspecial case for a general law.We introduce ZIC via the ∆-lens (∆η(x, u) = 0, η ∈ ∆), the Zulfia frame. The lensregularizes this messy zero to the correct state. The primitive form emerges as∆η(x, u) = 0 − η ∈ ∆ − E∆ = η · c² − ∆ = 0,and reduces to ∆ = 0 upon elimination of KKT + LICQ/M F CQ/Slater + λ ≥ 0.Einstein’s equation is recovered as a special case when η → m. The correct primitiveground state is ∆ = 0.