KArtSell.Aegis/docs/Design/kbx-foundation-v60-status-canonical-contract-hardening/docs/kbx-v19-standard-traceability.md

KBX v19 Standard Traceability

• Business UX/AX Standard: Outbox UX, Integration Failure UX, Hangfire Job UX, Audit by Default.
• Design System: Error Recovery, Job/SignalR source-of-truth separation, Idempotency, Notification semantics.
• Implementation Contract: PostgreSQL transaction + Outbox, UI Integration Status, Idempotency, Serilog/OTel correlation, synchronous Command vs background Job.

v19 implements these as canonical Integration Definitions, attempts/receipts, bounded transient resilience, durable retry, KbxIntegrationState, and deterministic failure-injection scenarios.