fix UI 1

frontend/src/api/hooks/inventory.ts

@@ -23,6 +23,7 @@ import {
   ProductTransformationResponse,
   ProductionStage,
   DeletionSummary,
+  BulkStockResponse,
 } from '../types/inventory';
 import { ApiError } from '../client';
 
@@ -342,7 +343,7 @@ export const useAddStock = (
   options?: UseMutationOptions<StockResponse, ApiError, { tenantId: string; stockData: StockCreate }>
 ) => {
   const queryClient = useQueryClient();
-  
+
   return useMutation<StockResponse, ApiError, { tenantId: string; stockData: StockCreate }>({
     mutationFn: ({ tenantId, stockData }) => inventoryService.addStock(tenantId, stockData),
     onSuccess: (data, { tenantId }) => {
@@ -355,6 +356,30 @@ export const useAddStock = (
   });
 };
 
+export const useBulkAddStock = (
+  options?: UseMutationOptions<BulkStockResponse, ApiError, { tenantId: string; stocks: StockCreate[] }>
+) => {
+  const queryClient = useQueryClient();
+
+  return useMutation<BulkStockResponse, ApiError, { tenantId: string; stocks: StockCreate[] }>({
+    mutationFn: ({ tenantId, stocks }) => inventoryService.bulkAddStock(tenantId, stocks),
+    onSuccess: (data, { tenantId }) => {
+      // Invalidate all stock queries since multiple ingredients may have been affected
+      queryClient.invalidateQueries({ queryKey: inventoryKeys.stock.lists() });
+      queryClient.invalidateQueries({ queryKey: inventoryKeys.ingredients.lists() });
+      // Invalidate per-ingredient stock queries
+      data.results.forEach((result) => {
+        if (result.success && result.stock) {
+          queryClient.invalidateQueries({
+            queryKey: inventoryKeys.stock.byIngredient(tenantId, result.stock.ingredient_id)
+          });
+        }
+      });
+    },
+    ...options,
+  });
+};
+
 export const useUpdateStock = (
   options?: UseMutationOptions<
     StockResponse, 

frontend/src/api/services/inventory.ts

@@ -29,6 +29,7 @@ import {
   StockFilter,
   StockMovementCreate,
   StockMovementResponse,
+  BulkStockResponse,
   // Operations
   StockConsumptionRequest,
   StockConsumptionResponse,
@@ -162,6 +163,16 @@ export class InventoryService {
     );
   }
 
+  async bulkAddStock(
+    tenantId: string,
+    stocks: StockCreate[]
+  ): Promise<BulkStockResponse> {
+    return apiClient.post<BulkStockResponse>(
+      `${this.baseUrl}/${tenantId}/inventory/stock/bulk`,
+      { stocks }
+    );
+  }
+
   async getStock(tenantId: string, stockId: string): Promise<StockResponse> {
     return apiClient.get<StockResponse>(
       `${this.baseUrl}/${tenantId}/inventory/stock/${stockId}`

frontend/src/api/types/inventory.ts

@@ -330,6 +330,28 @@ export interface StockResponse {
   ingredient?: IngredientResponse | null;
 }
 
+// ===== BULK STOCK SCHEMAS =====
+// Mirror: BulkStockCreate, BulkStockResult, BulkStockResponse from inventory.py
+
+export interface BulkStockCreate {
+  stocks: StockCreate[];
+}
+
+export interface BulkStockResult {
+  index: number;
+  success: boolean;
+  stock: StockResponse | null;
+  error: string | null;
+}
+
+export interface BulkStockResponse {
+  total_requested: number;
+  total_created: number;
+  total_failed: number;
+  results: BulkStockResult[];
+  transaction_id: string;
+}
+
 // ===== STOCK MOVEMENT SCHEMAS =====
 // Mirror: StockMovementCreate from inventory.py:277