A production rollout exposes a contract mismatch between the UI boundary and the owning service. The affected area is observability API.
Repair the observability API tests implementation so it classifies stable, flaky, and consistently failing tests from repeated independent runs.
Evidence
- Affected surface: Cloud-native full-stack / observability API.
- Observed failure family: triage an unreliable test suite.
- Scope policy: zoneState must equal healthy.