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