add promotion/detail

lib/features/home/presentation/widgets/promotion_slider.dart

@@ -6,6 +6,8 @@ library;
 
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+import 'package:worker/core/router/app_router.dart';
 import 'package:worker/core/theme/colors.dart';
 import 'package:worker/features/home/domain/entities/promotion.dart';
 
@@ -58,9 +60,17 @@ class PromotionSlider extends StatelessWidget {
               itemBuilder: (context, index) {
                 return _PromotionCard(
                   promotion: promotions[index],
-                  onTap: onPromotionTap != null
-                      ? () => onPromotionTap!(promotions[index])
-                      : null,
+                  onTap: () {
+                    if (onPromotionTap != null) {
+                      onPromotionTap!(promotions[index]);
+                    } else {
+                      // Navigate to promotion detail page
+                      context.pushNamed(
+                        RouteNames.promotionDetail,
+                        extra: promotions[index],
+                      );
+                    }
+                  },
                 );
               },
             ),