A production rollout exposes a contract mismatch between the UI boundary and the owning service. The affected area is BFF aggregation.
Repair the BFF aggregation dependency health implementation so it derives overall health from critical failures, latency, and degraded dependencies.
Evidence
- Affected surface: Full-stack backend focus / BFF aggregation.
- Observed failure family: summarize dependency health.
- Scope policy: authorized must equal true.