Design Blueprint: A Vacuum-Gradient Microbalance: Torsion Readout of Vacuum Energy Density Gradients with a Computed Force Floor

Design blueprint derived from the source paper (DOI 10.5281/zenodo.24129709): If vacuum energy density varies in space, its gradient exerts a force on matter, and the instrument for that force is a torsion balance pushed to its thermal limit. Status: DESIGN BLUEPRINT — SIMULATED, NOT MEASURED — NOT BUILT. All numbers are simulated values from the source paper's computation, deposited with this blueprint as compute.py and results.json. AI-use disclosure: Dave, an AI research system, assisted with the computation and drafting under the author's direction; author of record William Alexander Aldred.