feat: add isPrivate field to Product model and implement private product creation and retrieval

flutter/lib/features/admin/data/admin_repository.dart

@@ -142,6 +142,23 @@ class AdminRepository {
         .toList();
   }
 
+  /// Skapar en ny aktiv produkt (kräver admin). Returnerar `{id, name, categoryId?}`.
+  Future<Map<String, dynamic>> createProduct(String name, {int? categoryId}) async {
+    final token = await _token();
+    final data = await guardedApiCall(
+      _ref,
+      () => _apiClient.postJson(
+        ProductApiPaths.list,
+        body: {
+          'name': name.trim(),
+          if (categoryId != null) 'categoryId': categoryId,
+        },
+        token: token,
+      ),
+    );
+    return data as Map<String, dynamic>;
+  }
+
   Future<List<AdminProduct>> listDeletedProducts() async {
     final token = await _token();
     final data = await guardedApiCall(

flutter/lib/features/import/presentation/receipt_import_tab.dart

@@ -44,12 +44,14 @@ class _EditDialog extends StatefulWidget {
   final _ItemEdit current;
   final List<ProductOption> products;
   final List<AdminCategoryNode> categoryTree;
+  final Future<ProductOption?> Function(String name, int categoryId)? onCreate;
 
   const _EditDialog({
     required this.item,
     required this.current,
     required this.products,
     required this.categoryTree,
+    this.onCreate,
   });
 
   @override
@@ -62,6 +64,8 @@ class _EditDialogState extends State<_EditDialog> {
   int? _productId;
   String? _productName;
   _Destination _destination = _Destination.inventory;
+  // Lokal lista — utökas om nya produkter skapas under dialogen
+  late List<ProductOption> _localProducts;
 
   @override
   void initState() {
@@ -69,6 +73,7 @@ class _EditDialogState extends State<_EditDialog> {
     _productId = widget.current.productId;
     _productName = widget.current.productName;
     _destination = widget.current.destination;
+    _localProducts = List.of(widget.products);
     _quantityCtrl = TextEditingController(
       text: (widget.current.quantity ?? widget.item.quantity)?.toString() ?? '',
     );
@@ -95,17 +100,30 @@ class _EditDialogState extends State<_EditDialog> {
 
     // Hjälpfunktion: välj produkt via tvåstegs-picker (kategori → produkt)
     Future<void> openCategoryPicker({int? preselectedCategoryId}) async {
+      // onCreate-wrapper: lägg även till den nya produkten i _localProducts
+      Future<ProductOption?> Function(String, int)? onCreateWrapped;
+      if (widget.onCreate != null) {
+        onCreateWrapped = (name, categoryId) async {
+          final newProduct = await widget.onCreate!(name, categoryId);
+          if (newProduct != null && mounted) {
+            setState(() => _localProducts = [..._localProducts, newProduct]);
+          }
+          return newProduct;
+        };
+      }
+
       final id = await CategoryThenProductPicker.show(
         context,
         categoryTree: widget.categoryTree,
-        products: widget.products,
+        products: _localProducts,
         currentProductId: _productId,
         preselectedCategoryId: preselectedCategoryId,
+        onCreate: onCreateWrapped,
       );
       if (id != null && mounted) {
         setState(() {
           _productId = id;
-          _productName = widget.products
+          _productName = _localProducts
               .cast<ProductOption?>()
               .firstWhere((p) => p?.id == id, orElse: () => null)
               ?.name;
@@ -178,7 +196,7 @@ class _EditDialogState extends State<_EditDialog> {
               children: [
                 Expanded(
                   child: ProductPickerField(
-                    products: widget.products,
+                    products: _localProducts,
                     value: _productId,
                     label: 'Produkt',
                     onChanged: (id) {
@@ -186,7 +204,7 @@ class _EditDialogState extends State<_EditDialog> {
                         _productId = id;
                         _productName = id == null
                             ? null
-                            : widget.products
+                            : _localProducts
                                 .cast<ProductOption?>()
                                 .firstWhere((p) => p?.id == id, orElse: () => null)
                                 ?.name;
@@ -303,17 +321,28 @@ class _ReceiptImportTabState extends ConsumerState<ReceiptImportTab> {
       final adminRepo = ref.read(adminRepositoryProvider);
       final results = await Future.wait([
         api.getJson(ProductApiPaths.list, token: token),
+        api.getJson(ProductApiPaths.mine, token: token),
         adminRepo.listCategoryTree(),
       ]);
-      final data = results[0];
-      final list = data is List ? data : ((data as Map<String, dynamic>?)?['items'] as List? ?? []);
+      final globalData = results[0];
+      final mineData = results[1];
+      final globalList = globalData is List
+          ? globalData
+          : ((globalData as Map<String, dynamic>?)?['items'] as List? ?? []);
+      final mineList = mineData is List
+          ? mineData
+          : ((mineData as Map<String, dynamic>?)?['items'] as List? ?? []);
       if (mounted) {
         setState(() {
-          _products = list
-              .cast<Map<String, dynamic>>()
-              .map((e) => (id: e['id'] as int, name: e['name'] as String, categoryId: (e['categoryId'] as num?)?.toInt()))
-              .toList();
-          _categoryTree = results[1] as List<AdminCategoryNode>;
+          _products = [
+            ...globalList
+                .cast<Map<String, dynamic>>()
+                .map((e) => (id: e['id'] as int, name: (e['canonicalName'] ?? e['name']) as String, categoryId: (e['categoryId'] as num?)?.toInt())),
+            ...mineList
+                .cast<Map<String, dynamic>>()
+                .map((e) => (id: e['id'] as int, name: (e['canonicalName'] ?? e['name']) as String, categoryId: (e['categoryId'] as num?)?.toInt())),
+          ];
+          _categoryTree = results[2] as List<AdminCategoryNode>;
           _loadingProducts = false;
         });
       }
@@ -413,7 +442,35 @@ class _ReceiptImportTabState extends ConsumerState<ReceiptImportTab> {
 
     final result = await showDialog<_ItemEdit>(
       context: context,
-      builder: (_) => _EditDialog(item: item, current: current, products: _products, categoryTree: _categoryTree),
+      builder: (_) => _EditDialog(
+        item: item,
+        current: current,
+        products: _products,
+        categoryTree: _categoryTree,
+        onCreate: (name, categoryId) async {
+          try {
+            final token = await ref.read(authStateProvider.future);
+            final api = ref.read(apiClientProvider);
+            final data = await api.postJson(
+              ProductApiPaths.createPrivate,
+              body: {
+                'name': name.trim(),
+                'categoryId': categoryId,
+              },
+              token: token,
+            ) as Map<String, dynamic>;
+            final newProduct = (
+              id: data['id'] as int,
+              name: (data['canonicalName'] ?? data['name']) as String,
+              categoryId: categoryId,
+            );
+            if (mounted) setState(() => _products = [..._products, newProduct]);
+            return newProduct;
+          } catch (_) {
+            return null;
+          }
+        },
+      ),
     );
     if (result != null && mounted) {
       setState(() {