feat(i18n): enhance localization support with new languages(zh-tw/ja)

app/hooks/use-locale-switcher.ts

@@ -0,0 +1,38 @@
+"use client"
+
+import { useCallback } from "react"
+import { useLocale } from "next-intl"
+import { usePathname, useRouter } from "next/navigation"
+import { i18n, type Locale } from "@/i18n/config"
+
+export function useLocaleSwitcher() {
+  const locale = useLocale()
+  const router = useRouter()
+  const pathname = usePathname()
+
+  const switchLocale = useCallback(
+    (newLocale: Locale) => {
+      if (newLocale === locale) return
+
+      document.cookie = `NEXT_LOCALE=${newLocale}; path=/; max-age=31536000`
+
+      const segments = pathname.split("/")
+      if (i18n.locales.includes(segments[1] as Locale)) {
+        segments[1] = newLocale
+      } else {
+        segments.splice(1, 0, newLocale)
+      }
+
+      router.push(segments.join("/"))
+      router.refresh()
+    },
+    [locale, pathname, router]
+  )
+
+  return {
+    locale,
+    switchLocale,
+    locales: i18n.locales,
+  }
+}
+