CompressedManifestStaticFilesStorage requires collectstatic to generate a
manifest before it can serve anything. Dev containers never run collectstatic
so every static asset 404s. Override to StaticFilesStorage in dev so Django
serves files directly from STATICFILES_DIRS and app static directories.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
