A cross-layer workflow passes unit tests but breaks when client, API, and persistence state arrive in a different order. The affected area is checkout journey.
Repair the checkout journey background jobs implementation so it schedules the highest-priority jobs that fit and defers the remainder deterministically.
Evidence
- Affected surface: Balanced full-stack / checkout journey.
- Observed failure family: schedule constrained jobs.
- Scope policy: region must equal eu-west.