nhcx-coverage

Add NHCX policy search and coverage eligibility (discovery, validation, benefits) to a hospital information system, or build it into a standalone claims desk, held byte for byte to the pinned bundles. Starts by checking whether the app already searches policies and checks cover, then builds, extends or reuses only what is missing. Self-contained; needs no other skill installed. Use for policy search, coverage eligibility checks, "is this patient covered", NHCX use cases A2, B1 and D3, flow steps F1 to F3.