Design Blueprint: Drying Matters More Than Disinfectant

Design blueprint derived from the source paper (DOI 10.5281/zenodo.24119359): School toothbrushing programmes store dozens of brushes between sessions, and guidance often reaches for disinfectant soaking where the underlying problem is that brushes stay wet and touching. 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.