| Method | Path | Summary | Auth |
|---|---|---|---|
| POST | /v1/observability/frontend-events | Append a sanitized frontend event | Session |
| GET | /v1/observability/logs | List authorized observability facts | Session |
| GET | /v1/observability/logs/export | Export authorized observability facts as bounded CSV | Session |
Contract file：api/openapi/v1/observability-log.yaml