fix(app): persist defensiveness (#12973)

packages/desktop/src/i18n/index.ts

@@ -116,6 +116,15 @@ function parseRecord(value: unknown) {
   return value as Record<string, unknown>
 }
 
+function parseStored(value: unknown) {
+  if (typeof value !== "string") return value
+  try {
+    return JSON.parse(value) as unknown
+  } catch {
+    return value
+  }
+}
+
 function pickLocale(value: unknown): Locale | null {
   const direct = parseLocale(value)
   if (direct) return direct
@@ -169,7 +178,7 @@ export function initI18n(): Promise<Locale> {
     if (!store) return state.locale
 
     const raw = await store.get("language").catch(() => null)
-    const value = typeof raw === "string" ? JSON.parse(raw) : raw
+    const value = parseStored(raw)
     const next = pickLocale(value) ?? state.locale
 
     state.locale = next