Fix authentication state persistence and admin role display

- Implement complete authentication system with JWT token validation
- Add auth provider with persistent login state across page refreshes
- Create multilingual login/register forms with Material-UI components
- Fix token validation using raw SQL queries to bypass Prisma sync issues
- Add comprehensive error handling for expired/invalid tokens
- Create profile and settings pages with full i18n support
- Add proper user role management (admin/user) with database sync
- Implement secure middleware with CSRF protection and auth checks
- Add debug endpoints for troubleshooting authentication issues
- Fix Zustand store persistence for authentication state

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

middleware.ts

@@ -44,10 +44,22 @@ export async function middleware(request: NextRequest) {
 
   // Authentication: perform only lightweight checks in Middleware (Edge).
   // Defer full JWT verification to API route handlers (Node runtime).
-  if (request.nextUrl.pathname.startsWith('/dashboard')) {
-    const token = request.cookies.get('authToken')?.value
+  const protectedPaths = ['/dashboard', '/profile', '/settings']
+  const isProtectedPath = protectedPaths.some(path =>
+    request.nextUrl.pathname.startsWith(path)
+  )
+
+  if (isProtectedPath) {
+    const token = request.cookies.get('authToken')?.value ||
+                  request.headers.get('authorization')?.replace('Bearer ', '')
+
     if (!token) {
-      return NextResponse.redirect(new URL('/', request.url))
+      // Extract locale from pathname for redirect
+      const locale = request.nextUrl.pathname.split('/')[1]
+      const isValidLocale = ['ro', 'en'].includes(locale)
+      const redirectLocale = isValidLocale ? locale : 'ro'
+
+      return NextResponse.redirect(new URL(`/${redirectLocale}/auth/login`, request.url))
     }
   }