Review nits. The fixture scripts do exist under backend/tests/fixtures --
the doc path was relative to backend/, and I had wrongly concluded they
were missing -- so restore the quick-start pointer instead of dropping it.
Both scripts advertised '-- --ignored', which now silently runs zero tests
for sqs, and every documented invocation omitted -p and failed with 'no
test target named trigger_e2e'. Pin localstack to 3.8 to match CI.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>