${translate('common::greeting')}
`;\n```\n\n### Built-in strings\n\nThe package's own strings — the page header's back link, empty-state copy, the shell's toggle and\nclose labels, the wizard's buttons and step announcement — live in the `modern-app` namespace of\n`@iyulab/components`' `Locale`. English and Korean are built in, English being the default; pick the\nlanguage once, with `Locale.set()` — the primitives and `@iyulab/flex-table` follow the same call.\nRegister other languages, or your own wording, in the same namespace:\n\n```typescript\nimport { Locale } from '@iyulab/components';\nimport { modernAppLocale } from '@iyulab/modern-app';\n\nLocale.set('ko'); // built-in Korean — nothing to register\n\nmodernAppLocale.register('ja', {\n back: '戻る',\n toggleSidebar: 'サイドバーの切り替え',\n wizardStepAnnouncement: 'ステップ {index}/{total}: {label}',\n});\n```\n\nA partial table is enough — untranslated keys fall back to English, and a registration for a\nbuilt-in language overrides only the keys it gives. An element's own `locale`\nattribute overrides the active language for that element. `registerLocale`/`setDefaultLocale` still\nwork but are deprecated: a `setDefaultLocale()` call takes precedence over `Locale` until it is\ncalled with `undefined`.\n\n### 부팅 인증 게이트 (`auth`)\n\n셸을 만들기 전에 세션을 판정한다. 소비앱이 `app.load()` 앞단에 손으로 짜던 \"me 조회 → 미인증이면 로그인, 인증이면 앱 로드\" 게이트를 표준화한다. 세션 조회/로그인 HTTP 는 `@iyulab/enterprise` 의 `createAuthClient` 가, 세션-중 401 은 `createODataService` 의 `onUnauthorized` 가 담당한다(프레임워크는 오케스트레이션만 소유).\n\n```typescript\nimport { createAuthClient, setPermissions } from '@iyulab/enterprise';\n\nconst auth = createAuthClient