086e5fe751
The schema default for machineCurve.nq had a dummy pressure slice at
key "1" with x=[1..5] y=[10..50]. configUtils.updateConfig deep-merges
defaults into the real config, so this fake slice survived alongside the
real pressure slices (70000, 80000, ..., 390000 Pa). The predict class
then included it in its pressure-dimension spline, pulling all
interpolated y-values toward the dummy data at low pressures and
producing NEGATIVE flow predictions (e.g. -243 m³/h) where the real
curve is strictly positive.
Fix: default to empty objects {nq: {}, np: {}} so the deep merge adds
nothing. The validateMachineCurve function already returns the whole
default if the real curve is missing or invalid, so the empty default
doesn't break the no-curve-data path — it just stops poisoning the
real curve data.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
convert
Makes unit conversions
#need to make an index to fetch the helper functions properly without destroying all the links.