Follow-up to the AssetResolver landing. All five diffuser supplier
curves now share one X-axis convention; diffuser specificClass
computes specific flux from total flow + membrane area and queries the
curves at that flux. Each curve file carries its own
_meta.membraneArea_m2_per_element so the node defaults are correct
without any per-node overrides.
Supplier naming fixed: Sulzer (PIK300/PRK300), Aquaconsult-Entec
(Aerostrip Phoenix).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>