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) {

backend/src/products/products.service.ts

@@ -427,6 +427,37 @@ export class ProductsService {
     });
   }
 
+  async createPending(data: CreateProductDto, userId: number) {
+    const name = data.name.trim();
+    const normalizedName = normalizeName(name);
+
+    const existing = await this.prisma.product.findUnique({
+      where: { normalizedName },
+    });
+
+    if (existing) {
+      // Om produkten redan finns (aktiv), returnera den direkt
+      if (existing.isActive && existing.status === 'active') {
+        return existing;
+      }
+      // Om det redan finns ett pending-förslag, returnera det
+      if (existing.status === 'pending') {
+        return existing;
+      }
+    }
+
+    return this.prisma.product.create({
+      data: {
+        name,
+        normalizedName,
+        canonicalName: name,
+        isActive: false,
+        status: 'pending',
+        ownerId: userId,
+      },
+    });
+  }
+
   setStatus(id: number, status: string) {
     return this.prisma.product.update({ where: { id }, data: { status } });
   }