Add create method to RecipesService for recipe creation with ingredients

backend/src/recipes/recipes.service.ts

@@ -301,4 +301,31 @@ export class RecipesService {
 
     return recipe;
   }
+
+  async create(createRecipeDto: CreateRecipeDto) {
+    const recipe = await this.prisma.recipe.create({
+      data: {
+        name: createRecipeDto.name,
+        description: createRecipeDto.description || null,
+        instructions: createRecipeDto.instructions || null,
+        ingredients: {
+          create: createRecipeDto.ingredients.map((ingredient) => ({
+            productId: ingredient.productId,
+            quantity: ingredient.quantity.toString(),
+            unit: ingredient.unit,
+            note: ingredient.note || null,
+          })),
+        },
+      },
+      include: {
+        ingredients: {
+          include: {
+            product: true,
+          },
+        },
+      },
+    });
+
+    return recipe;
+  }
 }