Viscous Shear Cosmology (VSC): A Python Benchmark for the Hubble Tension

This release marks the official publication of the simulation suite for Viscous Shear Cosmology (VSC). This codebase provides statistical validation for a rheological field theory of the vacuum, offering a mechanical alternative to ΛCDM. Key Validations in this Release: Hubble Tension Resolved: Simulations demonstrate that the 5$\sigma$ tension is a kinematic artifact of the Local Group's bulk flow (~600 km/s) along the Laniakea filament, reconciling local measurements with Planck data. > * Dark Matter Mechanics: Recovered flat rotation curves and the Baryonic Tully-Fisher relation (M∝V4) using vacuum shear-thickening (η∝γ˙2) instead of non-baryonic particles. > * Early Universe Dynamics: Successfully modeled the "impossible" mass of galaxy JADES-GS-z14-0 by accounting for vacuum stiffening in the high-density early universe. Gravitational Wave Safety: Confirmed that while the vacuum is viscous for baryonic matter, it remains superfluid for gravitational waves, preserving LIGO signal integrity. New Features: Added VSC_Laniakea_Sim.py for bulk flow vector subtraction. Included VSC_GW_TwoFluid.py for Two-Fluid Superfluid vacuum testing. Full MCMC parameter estimation using emcee is now available for reproduction.