feat: enhance inventory and pantry features with filtering, sorting, and error handling improvements

flutter/lib/features/inventory/data/inventory_providers.dart

@@ -7,15 +7,36 @@ import '../domain/inventory_item.dart';
 import '../domain/inventory_consumption.dart';
 import 'inventory_repository.dart';
 
+class InventoryQuery {
+  final String location;
+  final String sort;
+
+  const InventoryQuery({required this.location, required this.sort});
+}
+
+final inventoryLocationFilterProvider = StateProvider<String>((ref) => '');
+final inventorySortFilterProvider = StateProvider<String>((ref) => '');
+
+final inventoryQueryProvider = Provider<InventoryQuery>((ref) {
+  final location = ref.watch(inventoryLocationFilterProvider);
+  final sort = ref.watch(inventorySortFilterProvider);
+  return InventoryQuery(location: location, sort: sort);
+});
+
 final inventoryRepositoryProvider = Provider<InventoryRepository>((ref) {
   return InventoryRepository(ref.watch(apiClientProvider));
 });
 
 final inventoryProvider = FutureProvider<List<InventoryItem>>((ref) async {
   final token = await ref.watch(authStateProvider.future);
+  final query = ref.watch(inventoryQueryProvider);
   return guardedApiCall(
     ref,
-    () => ref.read(inventoryRepositoryProvider).fetchInventory(token: token),
+    () => ref.read(inventoryRepositoryProvider).fetchInventory(
+          location: query.location,
+          sort: query.sort,
+          token: token,
+        ),
   );
 });