V13-FE-023 — Server-side grid contract slice note

Requirement: REQ-FE-GRID
API/UI/Test: UI-GRID-01 / T-FE-GRID-01
Source: v60 server-side grid boundary; current DataGridShell, KsDataGrid, KsPaginator, and CrudPageResult contracts.
Assumption: Page metadata is authoritative input from the query/read model; the UI emits a request intent and does not fetch or mutate server state.
Unknown: Sort/filter event wiring and column-state persistence are not connected to an active production screen through this component.
Decision Required: FE/BE must approve a per-resource query contract before adding server sort/filter event mapping.

Applied boundary

Added optional page, pageSize, and total metadata to DataGridShell.
Rendered the shared paginator only when all page metadata is explicitly supplied.
Forwarded page changes as an event; the component does not own fetching, caching, or server state.
Preserved existing client-row callers without pagination metadata.

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

pnpm typecheck
PASS (2026-08-12)

No server API, sort/filter event, column-state persistence, visual, AT, or browser E2E evidence is claimed.