feat(vaccinations): carry the immunization log through export and restore

- a new backup section reads the dose and its document link through
  their own delegates and writes both ends in one file, the arrangement
  the visit section already uses
- the practitioner and the visit remap to the rows the same restore put
  back; the booster reminder never travels, so its reference resolves to
  null and the drop is reported rather than swallowed
- the antigen slug restores verbatim: a slug the catalogue has since
  dropped still says what a person was given
- the round trip seeds a dose with every optional column filled and
  reads each one back, so a returning row count cannot stand in for a
  returning record

src/components/admin/backups-section.tsx

@@ -201,6 +201,9 @@ function catalogueLabel(
   if (catalogue === "visitReference") {
     return t("admin.section.backups.restoreSkippedVisitReference");
   }
+  if (catalogue === "vaccinationReference") {
+    return t("admin.section.backups.restoreSkippedVaccinationReference");
+  }
   if (catalogue === "checkupClosure") {
     return t("admin.section.backups.restoreSkippedCheckupClosure");
   }