V13-FE-014 — T04 master-detail template slice note

Requirement: REQ-FE-T04
API/UI/Test: UI-T04 / T-FE-T04-01
Source: v60 route-selection/evidence boundary; current MasterDetailCrudPage, PageLayout, and StandardScreenBoundary contracts.
Assumption: Master/detail selection and evidence context are caller-owned; the template does not fetch, cache, or mutate records.
Unknown: No active production master-detail screen currently supplies a domain version/conflict contract.
Decision Required: UX/QA/Domain Owner must approve selection, conflict, accessibility, and browser acceptance before MVP-B completion.

Applied boundary

Forwarded evidence version in addition to asOf.
Prevented detail-slot content exposure for UNAUTHORIZED and FORBIDDEN states while preserving the shared state boundary.
Characterized master/detail slot composition and retry forwarding.
Did not add route selection state, API calls, or domain conflict policy.

pnpm test -- src/shared/ui/screen-types/tests/MasterDetailCrudPage.spec.ts
PASS: 1 file / 2 tests (2026-08-12)

pnpm typecheck
PASS (2026-08-12)

No visual, AT, browser E2E, or production API evidence is claimed.