@Markus + @Tobias + @Sara on PR #693: the multi-spouse property is
load-bearing for buildLayout.test.ts (canonical_fixture_assigns_a_position
_to_every_node_with_multiple_spouses + canonical_fixture_multi_spouse
_falls_through_to_displayName_when_no_fromYear). A recapture against a
dataset that lost every multi-spouse person would silently degrade those
tests to vacuous truth.
Add MIN_MULTI_SPOUSE_PERSONS=1 to the capture-script sanity gates. Extract
the validator into a unit-testable TS module next to the fixture; the .mjs
script keeps its inline copy (one-file local utility) but the contract is
now covered by validateFixture.test.ts.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
6d8655bad1