Remark: O.1 requirement recorded

The XVI-O ledger O_quantum_target.json (o70-sync, read only) states the O.1 target: the one-loop ${\kappa }^2$ bulk two-point sector on $S_{\mathrm{inv}}$ closes under a verified retained quantum identity. Closing it requires O.2, O.4, O.5, O.6, and O.7, and an enlargement of the target if the identity constrains more legs at ${\kappa }^2$. XVI-P records that requirement and treats O.4, O.5, the projected part of O.6 and O.7, and the enlarge rule as in scope. O.2, the classical ${\kappa }^2$ master including the gravitational ${\ell }_4$, and the bulk ST4b identity stay with XVI-O and XVI-N and are not touched. O.1 is therefore not closable inside XVI-P, and it stays NOT_CLOSED.