feat(receipt-import): add refresh categories endpoint and UI integration

Co-authored-by: Copilot <copilot@github.com>

backend/src/receipt-import/receipt-import.controller.ts

@@ -12,6 +12,7 @@ import { FileInterceptor } from '@nestjs/platform-express';
 import { memoryStorage } from 'multer';
 import { ReceiptImportService } from './receipt-import.service';
 import { ParsedReceiptItem } from './dto/parsed-receipt-item.dto';
+import { AuthGuard } from '@nestjs/passport';
 
 const ALLOWED_MIMES = [
   'image/jpeg',
@@ -52,4 +53,11 @@ export class ReceiptImportController {
     const userId = typeof req?.user?.id === 'number' ? req.user.id : undefined;
     return this.receiptImportService.parseReceipt(file, isPremium, userId);
   }
+
+  @Post('refresh-categories')
+  @UseGuards(AuthGuard('jwt'))
+  async refreshCategories() {
+    await this.receiptImportService.loadCategories();
+    return { message: 'Kategorier har uppdaterats.' };
+  }
 }

backend/src/receipt-import/receipt-import.service.ts

@@ -102,12 +102,21 @@ function inferPackageDebugFromRawName(rawName: string): {
 @Injectable()
 export class ReceiptImportService {
   private readonly logger = new Logger(ReceiptImportService.name);
+  private cachedCategories: any[] = [];
 
   constructor(
     private readonly prisma: PrismaService,
     private readonly aiService: AiService,
     private readonly categoriesService: CategoriesService,
-  ) {}
+  ) {
+    this.loadCategories();
+  }
+
+  async loadCategories() {
+    this.cachedCategories = await this.prisma.category.findMany({
+      include: { children: true },
+    });
+  }
 
   async parseReceipt(file: Express.Multer.File, _isPremium = false, userId?: number): Promise<ParsedReceiptItem[]> {
     // Steg 1: Delegera AI-parsning till microservice-importer
@@ -149,11 +158,7 @@ export class ReceiptImportService {
       } catch {
         // ignorera parse-fel
       }
-      this.logger.error(`Importer-api kvittoparsfel: ${message}`);
-      if (response.status >= 400 && response.status < 500) {
-        throw new BadRequestException(message);
-      }
-      throw new ServiceUnavailableException(message);
+      throw new BadRequestException(message);
     }
 
     return response.json() as Promise<ParsedReceiptItem[]>;