Foundational GR Translation Ledger under Structural Flow: A Role-Shape and Equation-Shape Support Artifact for the Light-Probe Experiment Packet

This artifact is a GR translation ledger and physics support artifact for the light-probe experiment packet under Structural Flow. The ledger does not propose the immiscible-fluid light-probe experiment. It does not supply the operator or confound-control matrix for that experiment. It does not claim to derive General Relativity from Structural Flow. Its narrower purpose is to make GR-facing language usable inside the broader research packet without overstating what has been earned. The ledger works primarily at Level 1: form, role, relation, and equation architecture. It does not claim Level 2 empirical closure: measured constants, exact coefficients, source fields, matter models, boundary conditions, metric solutions, observational data, photon theory, QED, quantum gravity, or Planck-scale physics remain open. The artifact translates foundational GR-facing structures at role-shape, equation-shape, relation-shape, and ratio-role scope. It reads G_μν as source-facing geometry-response, T_μν as geometry-facing source-profile, κ as source/geometry relation package, Λg_μν as metric-proportional baseline geometry response, action architecture as geometry report plus source report plus boundary accounting, conservation compatibility as no-leak accounting, the geodesic equation as preferred continuation centerline, local admissibility as room around continuation, and Weyl / curvature remainder as geometry not locally exhausted by source. The ledger’s practical discipline is: translate where the role is earned; mark open where empirical or formal closure remains; do not smuggle measured content into structural form. The artifact is the third layer in the light-probe packet. The main experiment states the falsifiable prediction. The operator/confound appendix sharpens the local testing discipline. This ledger controls the GR-facing translation boundary. Its closing compression is: GR-facing equations can be read as structural accounting roles, but role-shape translation is not full derivation.