dashboard fix

apps/marketplace/src/components/MarketplaceShell.tsx

@@ -189,6 +189,16 @@ function SegmentedControl<T extends string>({
   )
 }
 
+function detectBrowserLanguage(): string | null {
+  if (typeof navigator === 'undefined') return null
+  const langs = Array.from(navigator.languages ?? [navigator.language])
+  for (const lang of langs) {
+    const code = lang.split('-')[0].toLowerCase()
+    if (code === 'fr' || code === 'ar' || code === 'en') return code
+  }
+  return null
+}
+
 export function useMarketplacePreferences() {
   const context = useContext(PreferencesContext)
   if (!context) throw new Error('useMarketplacePreferences must be used within MarketplaceShell')
@@ -262,6 +272,9 @@ export default function MarketplaceShell({ children }: { children: React.ReactNo
 
     if (isMarketplaceLanguage(storedLanguage)) {
       setLanguage(storedLanguage)
+    } else {
+      const detected = detectBrowserLanguage()
+      if (isMarketplaceLanguage(detected)) setLanguage(detected)
     }
 
     if (storedTheme === 'light' || storedTheme === 'medium' || storedTheme === 'dark') {