Fix email send crash when worker lacks staticfiles manifest.

Fall back to an unhashed logo URL if ManifestStaticFilesStorage misses, and run collectstatic in the worker entrypoint.

scripts/worker-entrypoint.sh

@@ -42,5 +42,10 @@ wait_for_database
 
 uv run python manage.py migrate --noinput
 
+# Email branding (and anything else that resolves static URLs) needs the
+# ManifestStaticFilesStorage map. Web entrypoint already collectstatics;
+# worker must too or hashed lookups raise ValueError.
+uv run python manage.py collectstatic --noinput
+
 # dj-queue supervisor (workers + dispatcher + scheduler). Run on ONE host only.
 exec uv run python manage.py dj_queue