NaFeP: first pairing prediction for an unmade 111 iron phosphide, and the pnictogen-height rule inside one compound

Companion to arXiv:2609.10614, which built a physics judge that classifies the gap symmetry of a superconductor candidate from its structure and showed that generation in the wire families re-finds the known canon. Here the judge is applied end to end to the single compound that survived its own scr