Data and code for: A collapse/tidal-gated dark-sector force: a finite-range scalar-tensor effective model and a calibrated cluster velocity-dispersion forecast

This record contains scripts, derived data products, run instructions, checksums, and external-data manifests supporting the associated manuscript on a finite-range dark-sector collapse/tidal-gated force forecast. The raw IllustrisTNG, Quijote, and AbacusSummit simulation data are not redistributed here; they are public external datasets and are documented in the included manifests.