Add segmented GVL reference data maintenance

src/background.js

@@ -125,6 +125,10 @@ async function handleVendorGetMessage(message, sender) {
     return handlePurgeUnlockedEvidenceRecordsMessage();
   }
 
+  if (message.type === "purge_gvl_reference_data") {
+    return handlePurgeGvlReferenceDataMessage();
+  }
+
   if (message.type === "delete_all_evidence_database") {
     return handleDeleteAllEvidenceDatabaseMessage();
   }
@@ -1225,6 +1229,12 @@ async function handlePurgeUnlockedEvidenceRecordsMessage() {
   return purgeUnlockedEvidenceRecords(db);
 }
 
+async function handlePurgeGvlReferenceDataMessage() {
+  const db = await openVendorGetDb();
+
+  return purgeGvlReferenceData(db);
+}
+
 function handleDeleteAllEvidenceDatabaseMessage() {
   return deleteVendorGetDatabase();
 }