Charged D7 photon poles and physical derivative/mass basis

ID: electron.matching.charged_derivative_QED_photon_basis

Direct external-photon insertions and unshelled four-point tensors close a ten-direction physical basis; five EOM directions yield a checked one-loop physical logarithm, with d-dimensional and finite/source closure open.

Status: diagnostic

Uncertainty

Sources

Claim boundaries

Diagnostic context only. Cite independent evidence for claims about the world.