update arabic to be default

apps/dashboard/src/app/layout.tsx

@@ -25,7 +25,7 @@ export const metadata: Metadata = {
 }
 
 function resolveInitialLanguage(value: string | undefined): 'en' | 'fr' | 'ar' {
-  return value === 'fr' || value === 'ar' || value === 'en' ? value : 'en'
+  return value === 'fr' || value === 'ar' || value === 'en' ? value : 'ar'
 }
 
 export default async function RootLayout({ children }: { children: React.ReactNode }) {

apps/dashboard/src/app/public-auth-pages.test.ts

@@ -86,7 +86,7 @@ describe("dashboard public auth pages", () => {
     const text = collectText(page).join(" ");
     const signInLink = findElement(
       page,
-      (element) => element.props.href === "/en/dark/sign-in",
+      (element) => element.props.href === "/ar/dark/sign-in",
     );
 
     expect(text).toContain("Invitation accepted");

apps/dashboard/src/components/I18nProvider.tsx

@@ -1519,22 +1519,12 @@ const I18nContext = createContext<I18nContextValue | null>(null)
 const DASHBOARD_LANGUAGE_KEY = 'dashboard-language'
 
 function normalizeLanguage(value: string | null | undefined): DashboardLanguage {
-  return value === 'fr' || value === 'ar' || value === 'en' ? value : 'en'
-}
-
-function detectBrowserLanguage(): DashboardLanguage | 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 as DashboardLanguage
-  }
-  return null
+  return value === 'fr' || value === 'ar' || value === 'en' ? value : 'ar'
 }
 
 export function DashboardI18nProvider({
   children,
-  initialLanguage = 'en',
+  initialLanguage = 'ar',
 }: {
   children: React.ReactNode
   initialLanguage?: DashboardLanguage
@@ -1580,8 +1570,8 @@ export function DashboardI18nProvider({
       const next = normalizeLanguage(stored)
       if (next !== language) setLanguageState(next)
     } else {
-      const detected = detectBrowserLanguage()
-      if (detected && detected !== language) setLanguageState(detected)
+      const defaultLanguage = normalizeLanguage(null)
+      if (defaultLanguage !== language) setLanguageState(defaultLanguage)
     }
   }, [])
 

apps/dashboard/src/components/layout/DashboardAccessGuard.boundary.test.ts

@@ -135,8 +135,8 @@ describe('DashboardAccessGuard route helpers', () => {
   })
 
   it('builds sign-in redirects with public dashboard return paths', () => {
-    expect(buildSignInRedirect('/reservations')).toBe('/en/dark/sign-in?redirect=%2Fdashboard%2Freservations')
-    expect(buildSignInRedirect('/dashboard/fleet')).toBe('/en/dark/sign-in?redirect=%2Fdashboard%2Ffleet')
+    expect(buildSignInRedirect('/reservations')).toBe('/ar/dark/sign-in?redirect=%2Fdashboard%2Freservations')
+    expect(buildSignInRedirect('/dashboard/fleet')).toBe('/ar/dark/sign-in?redirect=%2Fdashboard%2Ffleet')
   })
 
   it('treats subscription as an owner-only recovery route independent of menu registration', () => {

apps/dashboard/src/lib/dashboardPaths.test.ts

@@ -21,8 +21,8 @@ describe('dashboard path normalization', () => {
   })
 
   it('builds the canonical homepage sign-in URL with a dashboard return path', () => {
-    expect(buildHomepageSignInPath('/reservations')).toBe('/en/dark/sign-in?redirect=%2Fdashboard%2Freservations')
+    expect(buildHomepageSignInPath('/reservations')).toBe('/ar/dark/sign-in?redirect=%2Fdashboard%2Freservations')
     expect(buildHomepageSignInPath('/dashboard/fleet', { locale: 'fr', theme: 'dark' })).toBe('/fr/dark/sign-in?redirect=%2Fdashboard%2Ffleet')
-    expect(buildHomepageSignInPath()).toBe('/en/dark/sign-in')
+    expect(buildHomepageSignInPath()).toBe('/ar/dark/sign-in')
   })
 })

apps/dashboard/src/lib/dashboardPaths.ts

@@ -1,5 +1,5 @@
 const DASHBOARD_BASE_PATH = '/dashboard'
-const DEFAULT_SIGN_IN_LOCALE = 'en'
+const DEFAULT_SIGN_IN_LOCALE = 'ar'
 const DEFAULT_SIGN_IN_THEME = 'dark'
 
 export function toDashboardAppPath(path?: string | null): string {

apps/dashboard/src/proxy.test.ts

@@ -77,7 +77,7 @@ describe('dashboard proxy', () => {
 
     const response = proxy(request('http://dashboard:3001/dashboard/team') as never)
 
-    expect(response).toEqual({ kind: 'redirect', url: 'https://rentaldrivego.example/en/dark/sign-in?redirect=%2Fdashboard%2Fteam' })
+    expect(response).toEqual({ kind: 'redirect', url: 'https://rentaldrivego.example/ar/dark/sign-in?redirect=%2Fdashboard%2Fteam' })
   })
 
   it('redirects unprefixed internal app paths with a public dashboard return path', async () => {
@@ -85,7 +85,7 @@ describe('dashboard proxy', () => {
 
     const response = proxy(request('http://dashboard:3001/reservations') as never)
 
-    expect(response).toEqual({ kind: 'redirect', url: 'https://rentaldrivego.example/en/dark/sign-in?redirect=%2Fdashboard%2Freservations' })
+    expect(response).toEqual({ kind: 'redirect', url: 'https://rentaldrivego.example/ar/dark/sign-in?redirect=%2Fdashboard%2Freservations' })
   })
 
   it('ignores spoofed forwarded host/proto when building the dashboard sign-in redirect', async () => {
@@ -98,7 +98,7 @@ describe('dashboard proxy', () => {
       },
     }) as never)
 
-    expect(response).toEqual({ kind: 'redirect', url: 'https://market.example.com/en/dark/sign-in?redirect=%2Fdashboard%2Fbilling' })
+    expect(response).toEqual({ kind: 'redirect', url: 'https://market.example.com/ar/dark/sign-in?redirect=%2Fdashboard%2Fbilling' })
   })
 
   it('ignores internal forwarded hosts when building the dashboard sign-in redirect', async () => {
@@ -111,7 +111,7 @@ describe('dashboard proxy', () => {
       },
     }) as never)
 
-    expect(response).toEqual({ kind: 'redirect', url: 'https://market.example.com/en/dark/sign-in?redirect=%2Fdashboard%2Ffleet' })
+    expect(response).toEqual({ kind: 'redirect', url: 'https://market.example.com/ar/dark/sign-in?redirect=%2Fdashboard%2Ffleet' })
   })
 
   it('redirects legacy dashboard sign-in requests to the localized homepage sign-in route', async () => {

apps/dashboard/src/proxy.ts

@@ -4,7 +4,7 @@ import type { NextRequest } from 'next/server'
 const WEBSITE_URL = process.env.NEXT_PUBLIC_WEBSITE_URL ?? 'http://localhost:3000'
 const DASHBOARD_PUBLIC_URL = process.env.NEXT_PUBLIC_DASHBOARD_URL ?? `${WEBSITE_URL.replace(/\/$/, '')}/dashboard`
 const DASHBOARD_BASE_PATH = '/dashboard'
-const DEFAULT_SIGN_IN_LOCALE = 'en'
+const DEFAULT_SIGN_IN_LOCALE = 'ar'
 const DEFAULT_SIGN_IN_THEME = 'dark'
 
 function toDashboardAppPath(pathname: string): string {