feat: add identity mapping service
feat: add user license config service
feat: add HealthcareFhirConfig to FHIR data store
feat: add ConnectorRunErrorContext to error log
feat: support structured content for chunk
feat: support ACL data store and document
feat: add more options for layout parser config
feat: support media recommendation engine
feat: enable claim level score for grounding
feat: add custom search operators for Workspace search
feat: add more indexing state for site search engine
docs: keep the API doc up-to-date with recent changes
PiperOrigin-RevId: 766759284