Yichen Jiang
d231f30024
The childToolOmissions comparison arms ran only through the examples snapshot suites, which the unit coverage gate does not count. Add an authored child-omission scenario to the synthetic replay suite: one scripted child omits the declared tool (header pin minus the omission, prompt pin skipped), one keeps the full set (pin and prompt compared verbatim), restoring 100% branch coverage on suite.ts.