A distributed workflow needs a localized repair without weakening observability or rollback safety. The affected area is audit pipeline.
Repair the audit pipeline command handling implementation so it accepts first operations, recognizes safe repeats, and rejects key reuse with a different payload.
Evidence
- Affected surface: Full-stack backend focus / audit pipeline.
- Observed failure family: enforce idempotent operations.
- Scope policy: contractVersion must equal 2.