Django 5.1+ removes STATICFILES_STORAGE in favour of the STORAGES dict.
The old setting was silently ignored on Django 5.2, causing StaticFilesStorage
(the default) to be used instead of CompressedManifestStaticFilesStorage.
Result: no content-hashed filenames, no staticfiles.json manifest, and
Cloudflare caching /static/css/styles.css indefinitely with no cache
busting on deploy.
Fix: use STORAGES in base.py (CompressedManifestStaticFilesStorage) and
development.py (plain StaticFilesStorage, whitenoise disabled in dev).
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
