Filters Fix

lib/ui/landing/dashboard_screen_for_dependet.dart

@@ -335,7 +335,11 @@ class _DashboardScreenForDependetState extends State<DashboardScreenForDependet>
 
     try {
       int nextPage = currentPage + 1;
-      String catParam = (currentCategoryId == "all" || currentCategoryId == "0") ? "" : currentCategoryId;
+      // Must match fetchOffers's category resolution exactly (including the selected
+      // subcategory, if any) - otherwise pagination silently switches filters mid-scroll,
+      // fetching an overlapping result set under the same page number and duplicating items.
+      String effectiveCategoryId = _selectedSubcategoryId ?? currentCategoryId;
+      String catParam = (effectiveCategoryId == "all" || effectiveCategoryId == "0") ? "" : effectiveCategoryId;
       String? offerTypeParam = OffersAndDiscountsApiClient.mapOfferTypeFilter(selectedTypeFilter);
       String? queryParam = searchQuery.trim().isNotEmpty ? searchQuery.trim() : null;
       int? radiusParam = _radiusFromFilterDistance(_filterDistance);
@@ -378,7 +382,8 @@ class _DashboardScreenForDependetState extends State<DashboardScreenForDependet>
   }
 
   Future<void> _onRefresh() async {
-    await Future.wait<dynamic>(<Future<void>>[fetchCategories(), fetchOffers(categoryId: currentCategoryId.isEmpty ? "all" : currentCategoryId, query: _searchController.text)]);
+    String effectiveCategoryId = _selectedSubcategoryId ?? (currentCategoryId.isEmpty ? "all" : currentCategoryId);
+    await Future.wait<dynamic>(<Future<void>>[fetchCategories(), fetchOffers(categoryId: effectiveCategoryId, query: _searchController.text)]);
   }
 
   // '5km'/'10km'/'25km' -> 5/10/25 for WP_Radius; 'any' -> null (omit the param - no distance cap).