Retire allowFhirApi and resourceTypes off the share-link response

iOS green-lit removal on 2026-07-30 (their decoder treats both as
optional, confirmed at ShareLinkDTO.swift:105-106) and confirmed no
shipped build breaks. Drops RETIRED_FHIR_SCOPE_FIELDS and its spread
from the create and list responses, removes the two properties and
their required-list entries from ShareLinkCreated/ShareLinkList in
the OpenAPI source, and regenerates the spec. The request side was
already closed off by .strict() in an earlier pass; this finishes it
on the response side.

Route tests now assert the fields are absent from both responses
instead of asserting the constants they used to carry.

docs/api/openapi.yaml

@@ -16518,12 +16518,6 @@ components:
               type: boolean
             needsReselection:
               type: boolean
-            allowFhirApi:
-              type: boolean
-            resourceTypes:
-              type: array
-              items:
-                type: string
             expiresAt:
               type: string
             createdAt:
@@ -16562,8 +16556,6 @@ components:
             - documentCount
             - documentOnly
             - needsReselection
-            - allowFhirApi
-            - resourceTypes
             - expiresAt
             - createdAt
             - revokedAt
@@ -16616,12 +16608,6 @@ components:
                     type: boolean
                   needsReselection:
                     type: boolean
-                  allowFhirApi:
-                    type: boolean
-                  resourceTypes:
-                    type: array
-                    items:
-                      type: string
                   expiresAt:
                     type: string
                   createdAt:
@@ -16647,8 +16633,6 @@ components:
                   - documentCount
                   - documentOnly
                   - needsReselection
-                  - allowFhirApi
-                  - resourceTypes
                   - expiresAt
                   - createdAt
                   - revokedAt