fhir-dsl: a type-safe FHIR toolchain for TypeScript

If you've written TypeScript against a FHIR API, you know the script: The "official" client returns Bundle | unknown . Every property access is a ?. chain through fog. Search parameters are strings. name works on Patient, but does family work on Practitioner? Read the spec, hope you remember. Profile narrowing (US Core, IPS) doesn't exist at the type level. You assume the resource conforms; runtime tells you when it doesn't. FHIRPath is a string. The compiler doesn't know Patient.name.given is v