Outcome

${\sigma }_0$ closure at ${\kappa }^3$: CLOSED at pole level on the one-loop three-point rows in the enlarged (evanescent) counterterm domain. P.6 remains Partial: CT-domain reduction to an invariant operator basis, four-point rows, finite parts, ghost-equation compatibility and uniqueness of $X$ are open. O.1 (scoped, ${\kappa }^2$ two-point) unchanged; bulk symmetry restoration not claimed.