feat: Implement support chat functionality, add 2FA verification screen and routing, and update dependencies.

lib/features/auth/presentation/screens/login_screen.dart

@@ -61,7 +61,16 @@ class _LoginScreenState extends ConsumerState<LoginScreen> {
     final authState = ref.watch(authProvider);
     final isLoading = authState.status == AuthStatus.loading;
 
-    // Router redirect handles navigation on auth state change
+    // Navigate on auth state changes
+    ref.listen<AuthState>(authProvider, (previous, next) {
+      if (next.status == AuthStatus.authenticated) {
+        context.go('/home');
+      }
+      // Navigate to 2FA verification screen
+      if (next.requiresTwoFactor && next.tempToken != null) {
+        context.go('/verify-2fa');
+      }
+    });
 
     return Scaffold(
       body: Container(