Quarkus Qute backed FHIR `NarrativeGenerator`

For automatic narrative generation you can set a `NarrativeGenerator` on the `FhirContext`. The downside is that currently the only automatic generator is based on Thymeleaf. I've not tested it, but it probably does not work OOTB in native mode.

Therefore, it might be worth seeing if Qute could be leveraged as a replacement.

Start by examining the FhirContext NarrativeGenerator integration and the existing Thymeleaf-based automatic generator mentioned in the issue. Investigate whether Qute can provide a replacement that works in Quarkus native mode; done means the generator is integrated and its native-mode behavior is validated.

Written by the indexing model from the issue text.