Nightly try.getaxonflow.com integration failing

[github-actions]

Scheduled nightly run against https://try.getaxonflow.com failed.

Run: https://github.com/getaxonflow/axonflow-sdk-python/actions/runs/26326479964
Commit: c45d097

try.getaxonflow.com is the production canary for the Python SDK. Investigate:

1. Is the endpoint itself reachable / healthy?
2. Did POST /api/v1/register change shape (expecting tenant_id + secret)?
3. Did tests/test_integration.py regress vs the live stack?
4. Did examples/quickstart.py or examples/gateway_mode.py regress?

Pinned dependency graph for this run is uploaded as the pip-freeze-26326479964 artifact.
Logs and reproduction details in the run link above.

[github-actions]

Another scheduled run failed: https://github.com/getaxonflow/axonflow-sdk-python/actions/runs/26354912981