Records the naming-vs-coverage gap surfaced during WS-6 closure
verification: ARCH-FORM-BUILDER §31 references five integration
contract tests by name that don't exist under those filenames in
api/tests/Feature/FormBuilder/Integration/. Coverage may be intact
under different filenames; only the §31 naming index is stale.
Low priority — defer to whoever next touches FormBuilder
integration tests.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>