feat(inventory): add origin field to InventoryItem and update related DTOs and services

backend/src/products/products.controller.ts

@@ -125,11 +125,20 @@ export class ProductsController {
     return this.aiService.suggestCategory(product.canonicalName ?? product.name, categories);
   }
 
+  @Roles('admin')
   @Post()
   create(@Body() body: CreateProductDto) {
     return this.productsService.create(body);
   }
 
+  @Post('pending')
+  createPending(
+    @Body() body: CreateProductDto,
+    @Request() req: { user: { id: number } },
+  ) {
+    return this.productsService.createPending(body, req.user.id);
+  }
+
   @Roles('admin')
   @Post('merge')
   merge(@Body() body: MergeProductsDto) {