Design Blueprint: Closed-Loop Life Support for a Fifth-Coordinate Transit Capsule: Consumables Budget Across Crossing Durations

Design blueprint derived from the source paper (DOI 10.5281/zenodo.24123485): The device is the closed-loop life-support system of a four-person transit capsule designed for fifth-coordinate crossings, sized not for the crossing itself, which occupies seconds, but for the gate dwell, delay, and contingency durations that surround it. 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.