Pre-registration of falsifiable lepton-sector predictions from a parameter-free geometric framework (Disc Theory)

This note timestamps a set of derived, falsifiable predictions for the lepton sector, obtained from a discrete-geometric framework with no free flavour parameters. It is recorded before the definitive (design-sensitivity, multi-year) determination of the neutrino mass ordering by JUNO, and before long-baseline pinning of δ_CP and next-generation neutrinoless double-beta (0νββ) searches. The purpose is priority and falsification exposure, not a claim of completeness; the full derivation is not yet published. Each prediction is stated with the measurement that would falsify it.