feat(import): enhance image URL extraction and logging during recipe import

backend/src/recipes/recipes.service.ts

@@ -1,4 +1,4 @@
-import { Injectable, NotFoundException } from '@nestjs/common';
+import { Injectable, Logger, NotFoundException } from '@nestjs/common';
 import { Prisma } from '@prisma/client';
 import * as fs from 'node:fs/promises';
 import * as path from 'node:path';
@@ -27,6 +27,8 @@ interface ParsedRecipe {
 
 @Injectable()
 export class RecipesService {
+  private readonly logger = new Logger(RecipesService.name);
+
   constructor(private readonly prisma: PrismaService) {}
 
   async getInventoryPreview(id: number) {
@@ -301,17 +303,25 @@ export class RecipesService {
   }
 
   async create(createRecipeDto: CreateRecipeDto, userId: number) {
+    this.logger.log(
+      `[create] Incoming imageUrl from client: ${createRecipeDto.imageUrl ?? 'null'}`,
+    );
+
     // Om imageUrl är en extern URL — ladda ner och optimera
     let imageUrl: string | null = createRecipeDto.imageUrl || null;
     if (imageUrl && imageUrl.startsWith('http')) {
+      const externalImageUrl = imageUrl;
       try {
         imageUrl = await downloadAndOptimizeImage(imageUrl, IMAGE_DEST_DIR);
       } catch (err) {
         console.warn('[RecipesService] Kunde inte ladda ner receptbild:', err);
-        imageUrl = null;
+        // Behåll extern URL som fallback så bild fortfarande visas.
+        imageUrl = externalImageUrl;
       }
     }
 
+    this.logger.log(`[create] Final imageUrl persisted to DB: ${imageUrl ?? 'null'}`);
+
     const recipe = await this.prisma.recipe.create({
       data: {
         name: createRecipeDto.name,