UAT: Update author source for labs (3.1 spec)

[angelathe]

What needs to be done

Under the 3.1 spec, authors for labs should now come from /ClinicalDocument/component/structuredBody/component/section/entry/organizer/author/assignedAuthor/representedOrganization

But we currently only pull author from the following xpath, which is no longer required by 3.1 spec. /ClinicalDocument/component/structuredBody/component/section/entry/organizer/performer/representedOrganization.

Update the DiagnosticReport author extraction logic to prioritize the author/assignedAuthor/representedOrganization path. If that path is not present, fall back to performer/representedOrganization to maintain backward compatibility with older documents.

Open question: Note that it is possible that an entry/organizer would have both a performer and an author. Can both exist in a FHIR bundle, and if so, which field should we pull the author from on the Viewer-side?

Why it needs to be done

Brought up by TN -- Hardik will provide de-identified examples when possible.

Acceptance Criteria

• Update/add any relevant logic in the FHIR converter.
• (?) Update what fields we pull the lab report author info from, if necessary.
• Make PRs (2) in dibbs-fhir-converter and dibbs-ecr-viewer

Technical Notes

FHIR conversion IS required for this ticket.

Additional context

Relevant files: data/Templates/eCR/Entry/Result/entry.liquid
Example eCRs: [TBD - will be provided by TN]