feat(ui,api-client): B4/B5 추출 — @yakcloud/ui + @yakcloud/api-client

@yakcloud/ui (15 모듈, react peer, ds-sdk type-only):
- globals.css 3분할(tokens/components/sheet.css; 680px→--sheet-body-max-height)
- icons·primitives·controls·states, LineChart 6색 CSS 토큰화(+peakColorToken)
- CardSheet/PanelSheets: apiGet 디커플(콘텐츠 prop 주입)·lockPageScroll(container?) 폴백
- decorators(statusMeta 등, ds-sdk enum 소비), getServiceMeta(type, logoBase) 로고 URL-only
- 수정: tsconfig jsx:react-jsx, @types/react(-dom), CSS exports 서브패스

@yakcloud/api-client (3 모듈, react peer, ds-sdk type-only):
- apiGet/apiSend/apiDownload + ApiClientError, usePoll(SWR·LRU·gen guard·401/403)
- /api/v1 고정 훅 제외, 서버코드 유입 0(ApiCode만 ds-sdk에서)

검증: DAG PASS(ui↛api-client, api-client↛서버), 디커플 PASS, tsc --noEmit 통과(양 패키지).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

packages/api-client/package.json

@@ -29,5 +29,8 @@
   },
   "peerDependencies": {
     "react": ">=18"
+  },
+  "devDependencies": {
+    "@types/react": "^19.0.0"
   }
 }