Fields in the GDUM Framework: Origins, Classification, Properties, and Interactions Foundational Charter

GDUM presupposes no field at the programmatic layer. The programmatic layer contains only the ℤ₂ two-sheet Deck involution and the orientation-conjugate relation—no manifold, no coordinates, no field variables, no spacetime, no dynamical degrees of freedom. All fields are topological phase/winding fluxes at the computational layer, emerging as effective entities within the integrable windows of the representational layer via the readout functor. Fields are not fundamental ontology; they are readout representations of the topological substrate.