- Remove defensive ?? 0 fallbacks in buildFailedPredicate that could
silently report false geometry in proof witnesses
- Require all 4 rect fields present before building subjectRect/referenceRect
(was only checking subjectLeft)
- Add explicit undefined guards for observed gap, measured values,
delta, and aspect ratio — return undefined (no failedPredicate)
when critical metrics are missing instead of fabricating 0 defaults
- Generic synthesizeGenericFailedPredicate checks value presence
instead of defaulting metrics[keys] to 0
- Option defaults (minGap, maxGap, tolerance, min, max bounds)
retain ?? 0/?? Infinity as correct neutral values for user parameters
John Dvorak
3b7be0aaf0