Diagnostics

Verify offline local order persistence, durable outbox, reconnect, sync, and canonical acknowledgement.

Verify a governed inventory receipt intent is validated, stored durably in the shared operational outbox, and survives offline PWA reload before server reconciliation.

Verify durable held carts survive restart, can be recalled offline, and convert atomically into one official order.

Verify canonical partial/full cash refunds, idempotent retry, payment state transition, and exactly-once inventory return.

Verify durable print jobs, printer failure isolation, restart survival, and retry through the Device Bridge.

Verify durable audited drawer commands, failure isolation, restart survival, and retry through DrawerAdapter.

Verify one canonical preparation ticket per order scope, idempotent ensure, explicit KDS state transitions, and commerce-authority isolation.

Verify deterministic station assignment, stable station-work identity, idempotent bump/retry, recall, and commerce-authority isolation.

Verify raw scanner payload normalization, deterministic canonical product resolution, explicit unresolved results, and zero commerce mutation.

Verify keyboard-wedge physical capture, shared resolver routing, camera capability probing, and commerce-authority isolation.

Verify stable label artifact identity, durable label print jobs, printer failure isolation, restart survival, and retry through the shared PrinterAdapter.

Verify durable terminal attempts, explicit provider outcomes, governed reconciliation, and idempotent confirmation.

Verify source evidence, duplicate delivery idempotency, reject-without-order behavior, and governed acceptance into exactly one canonical order.

Verify provider-neutral WhatsApp event mapping, preserved raw evidence, duplicate delivery idempotency, unresolved intent, and shared governed order acceptance.

Verify authenticated versioned intake, external request idempotency, preserved source evidence, validation, and governed order acceptance.

Verify authenticated oversized request bodies are rejected before schema parsing and canonical intake authority, without commerce mutation.

Verify unexpected authority failures return a stable public code and correlation identity without exposing internal provider or database detail.

Verify malformed authenticated JSON is rejected as HTTP 400 before canonical intake authority with no commerce mutation.

Verify the protected, non-mutating health/readiness boundary, canonical database reachability, and request correlation without exposing secrets.

Verify correlation IDs and normalized authorization/validation classifications across representative protected server boundaries without commerce mutation.

Verify pending, failed, retry and reconciliation-required states are observable with deterministic same-identity recovery and no canonical commerce mutation.