- Replace resolve_effective_document_by_pk stub with direct get_object_or_404
+ resolve_requested_version calls in all five conditional functions
- Switch from .modified (shim) to .added (DocumentVersion native field)
- Switch thumbnail cache key to use version.id instead of document id
- Re-add get_root_document/get_latest_version_for_root stubs to versioning.py
(bulk_edit.py still needs them; Task 10 will remove them)
- Update TestVersionAwareFilters tests to reflect simplified filter behavior
(no more FieldError fallback; filters query content directly)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* Adds ETag and Last-Modified headers to suggestions, metadata and previews
* Slight update to the suggestions etag
* Small user message for why classifier didn't train again
