KBX v24 Standard Traceability

Source standard	v24 implementation
Input Default/Hover/Focus/Filled/Readonly/Disabled/Changed/Error/Warning/AI Suggested	`KbxFieldState` + stateful input family
Loading / Empty / Error contract	`KbxDataState`, `KbxDataGrid` runtime state
Grid changed cell / validation / personalization / export / summary	`KbxDataGrid` v1.2
Search checkbox / remember / saved search	`KbxSearchPanel` v1.2
DateRange quick periods	`KbxDateRange` v1.1
Keyboard scope priority	`keyboard/manager.ts`
Browser shortcut protection	central keyboard manager protected set
Tab accessibility	`KbxTabs` Arrow/Home/End + ARIA linkage
AG Grid API isolation	`KbxGridColumnPreference` adapter contract
Component state reproducibility	`ComponentCatalogPage.vue` + visual regression scenario
Technical debt ratchet	`governance/design-debt-baseline.json = 366`

Boundary preserved

KBX = 사용 방법 / 상태 표현 / 키보드 / 복구 UX
Domain = 가능한 업무 / 상태 전이 / 정합성 / 권한 최종 판정

Changed나 AI Suggested는 Domain truth가 아니다. Server validation 결과가 항상 우선한다.