test(validator): drop the R4 baseline entry that #432 already fixed

[smunini]

The failure

r4_spec_examples_match_baseline fails with a single divergence — an improvement the ratchet refuses to accept silently:

FIXED  questionnaire-cqf-example.json: validates clean now.
       Good -- remove it from the baseline so the ratchet holds.

This is not specific to any one PR. It reproduces on main, it fails the scheduled validator-conformance.yml runs (2026-08-05, 2026-08-06), and it fails the Pack smoke + spec example corpus job on every validator PR since — #461, #465, #472 among them.

Root cause

The baseline recorded exactly one entry whose only issue kind was unknown-schema:

questionnaire-cqf-example.json — "Documented gap: core extension StructureDefinitions (extension-definitions.json) are not in the vendored spec bundles, so these extension canonicals cannot be resolved."

#432 (feat/363-extension-catalogue, 55e3f6d, merged 2026-08-04) vendored resources/R4/extension-definitions.json and regenerated fhir_schemas_r4.json.gz (180KB → 208KB). The file's three canonicals — cqf-expression, cqf-library, cqf-questionnaire — resolve now, so it validates clean. The R4 sweep no longer emits the unknown-schema kind at all. That PR did not update the baseline, so the ratchet has been firing on its own success ever since.

The change

Delete the entry. 220 → 219 known failures. resourcesValidated stays at 2912 and no other manifest field moves, so this is the whole fix.

R5 still reports 1934 unknown-schema issues — its pack was never given extension definitions — and that baseline is untouched here.

Verification

$ cargo test -p helios-fhir-validator --test spec_examples -- --ignored
R4: validated 2912 resources, 219 with issues
test result: ok. 1 passed; 0 failed

https://claude.ai/code/session_015Xv3QofZPCr89AgHjnATGR

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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