Booking Reconciliation Frontend Report

Scope

• Completed FE-01 through FE-04 only.
• FE-05 remains blocked: this prototype uses local read-only demo data and has no HTTP client, URL, authentication, polling, retry, or write operation.

Delivery

Task	Result
FE-01	src/reconciliation/types.ts declares the frontend-only booking state, action, and decision view types. cases.ts supplies four fixed ISO-8601 demo records with satisfies readonly ReconciliationCaseView[]; only EXPLICIT_NO_BOOKING_CREATED has safeToCreateAgain=true.
FE-02	main.ts renders the read-only cases with semantic table markup, stable order IDs, Chinese enum labels, native <details>, and separate empty/error states. Display data is validated before rendering; invalid fields render an error fact instead of an empty list.
FE-03	Each result has explicit safety text. Native <details>/<summary> provides keyboard expansion, the result count uses a live status region, and the error state uses role="alert".
FE-04	styles.css uses the project blue-grey B-end tokens and system font stack. The 640px breakpoint transforms rows into label/value records; long IDs, reason codes, and enum values wrap without horizontal clipping. Focus-visible styles are provided for summaries and links.

Verification

• cd frontend; npm run build passed (tsc --noEmit && vite build).
• Browser check at 1440px: all four decisions, labels, next-check values, and read-only safety conclusions were visible.
• Browser check at 320px: records converted to field-labelled vertical rows; long English identifiers wrapped and remained reachable.
• Keyboard check: Tab, then Enter opened the first native details section and exposed message, attempts, identifiers, and update time.
• Browser console check: zero errors.

Risk

• This is intentionally a local prototype. API integration must wait for the separately approved FE-05 contract, including pagination, authorization, stable errors, and traceId behavior.