calculation WFC
v10 EDL/C_dl sweep executed -- confirms negligible shift on v8 baseline
Ran the v10 sweep flagged as open in #1333: folded C_dl(lambda_D) in as two series EDL caps (rod surface + tube surface) onto the v8 geometry (15.9mm rod / 22.3mm tube / 101.6mm). Computed C_geo=1.338...