アイヌ語追加 (#428) (#433)

Reviewed-on: #433
Co-authored-by: miteruzo <miteruzo@naver.com>

frontend/src/lib/routeLocales.ts

@@ -0,0 +1,35 @@
+import type { QueryClient } from '@tanstack/react-query'
+import type { IndexRouteObject, Location, NonIndexRouteObject, Params } from 'react-router-dom'
+
+import type { LocaleCode } from '@/lib/locales'
+
+export type PagePreparation = {
+    client: QueryClient
+    params: Readonly<Params>
+    locale: LocaleCode
+    searchParams: URLSearchParams }
+
+export type LocaleSwitchRequest = {
+    location: Pick<Location, 'pathname' | 'search' | 'hash'>
+    params: Readonly<Params>
+    locale: LocaleCode
+    targetLocale: LocaleCode }
+
+export type SitemapSource =
+    'static' | 'help' | 'posts' | 'tags' | 'deerjikists' | 'materials'
+    | 'descriptions' | 'tag_groups' | 'theatres'
+
+export type PageRouteHandle = {
+    preload?: (locale: LocaleCode) => Promise<unknown>
+    prepare?: (request: PagePreparation) => Promise<number>
+    switchLocale?: (request: LocaleSwitchRequest) => Promise<string>
+    locale?: LocaleCode
+    robots?: 'noindex'
+    authentication?: 'user'
+    sitemap?: SitemapSource[]
+    redirectTo?: string
+    notFound?: boolean }
+
+export type PageRoute = { handle?: PageRouteHandle } & (
+    Omit<IndexRouteObject, 'handle'>
+    | (Omit<NonIndexRouteObject, 'handle' | 'children'> & { children?: PageRoute[] }))