Data: Dynamical Dark Sector: A Joint Two-Scalar-Field Model for Dark Matter and Quintessence S8= 0.79

Technical Description"This dataset contains the structural modification of the CLASS (Cosmic Linear Anisotropy Solving System) cosmological code, specifically within the background.c module. The implementation introduces a dual scalar field dynamics, integrating Quintessence (Pseudo-Nambu Goldstone Boson - PNGB) and Fuzzy Dark Matter (FDM).The code was developed to test the Equilibrium Formula proposed by the author, aiming to resolve the observational discrepancy known as the S8 Tension. Through this modification, it is possible to simulate the suppression of matter clustering at small scales and the late-time accelerated expansion in a unified framework. This file is an integral part of the research published on SSRN, providing the computational foundation for the identification of 33 Exoplanet Candidates (CTOIs) via scalar field filtering techniques."Key Features included:Robust Implementation: Background derivation functions (background_derivs) fully compatible with the 2025 version of CLASS.Field Physics: Inclusion of cosmological potentials for axion-like fields.Reproducibility: Open-source code for peer validation and cosmological parameter sensitivity testing.