fix: error "27" (#5122)

* fix: error 27

* fix: sentry only in prod

* fix: sentry env

* Revert "fix: error 27"

This reverts commit 66ee482a0567a5e53326e576b1bc6af0542a7fe3.

* feat: attempt to fix error 27

packages/ui/src/composables/i18n.ts

@@ -1,8 +1,28 @@
 import IntlMessageFormat from 'intl-messageformat'
 import type { Ref } from 'vue'
-import type { CompileError, MessageCompiler, MessageContext } from 'vue-i18n'
+import type { CompileError, Composer, MessageCompiler, MessageContext } from 'vue-i18n'
 import { useI18n } from 'vue-i18n'
 
+/**
+ * Get i18n instance, preferring Nuxt's $i18n to avoid vue-i18n's
+ * getCurrentInstance() issues on edge runtimes with concurrent SSR requests.
+ */
+export function getSafeI18n(): Pick<Composer, 't' | 'locale'> {
+	// Try Nuxt's $i18n first (avoids Error 27 on Cloudflare Workers)
+	if (typeof useNuxtApp !== 'undefined') {
+		try {
+			const { $i18n } = useNuxtApp()
+			if ($i18n) {
+				return { t: $i18n.t, locale: $i18n.locale }
+			}
+		} catch {
+			// Not in Nuxt context, fall through
+		}
+	}
+	// Fallback to vue-i18n's useI18n
+	return useI18n()
+}
+
 export interface MessageDescriptor {
 	id: string
 	defaultMessage?: string
@@ -174,7 +194,7 @@ export interface VIntlFormatters {
  * Uses vue-i18n's useI18n() under the hood.
  */
 export function useVIntl(): VIntlFormatters & { locale: Ref<string> } {
-	const { t, locale } = useI18n()
+	const { t, locale } = getSafeI18n()
 
 	function formatMessage(descriptor: MessageDescriptor, values?: Record<string, unknown>): string {
 		const key = descriptor.id