Design Blueprint: Solar Salt Pan, Sized by Water Balance

Design blueprint derived from the source paper (DOI 10.5281/zenodo.24115130): A solar salt pan sized by the source paper's water-balance rule: for a household need of 30 kg of salt per year from seawater, 0.63 square metres in an arid coastal climate and 4.92 square metres in a humid coastal climate, refilled as it dries. 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.