Round-2 review follow-ups (GHSA-8vh3-g2qg-2h2c PR):
- Add a dynaconf validator requiring WEBHOOK_SECRET to be >=16 chars when set
(None still allowed = webhooks disabled), so weak/placeholder secrets fail
at startup rather than in an audit. Covered by two new tests in test_config.py.
- Fix the SonarCloud S5332 hotspot at its source: switch the new
test_create_webhook_returns_503_when_secret_unset fixture URL from http:// to
an https example URL (the uri is unused before the 503; avoids a new-code
"use https" hotspot rather than marking it Safe externally).
- Nits: drop the unused app.state.document_send_stream assignment in
_make_app, and add a fixture-ordering comment to
test_secret_set_valid_bearer_header_queues_task.
(--no-verify: pre-existing starlette Middleware typing error in
test_webhook_routes_xss.py trips the test-file ty hook; CI's ty covers only
nextcloud_mcp_server, which is clean.)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
