add dtos and fix entities including migrations

src/dtos/RecipeDto.ts

@@ -0,0 +1,15 @@
+
+import { AbstractDto } from "./AbstractDto.js";
+import { RecipeIngredientGroupDto } from "./RecipeIngredientGroupDto.js";
+import { RecipeInstructionStepDto } from "./RecipeInstructionStepDto.js";
+/**
+ * DTO describing a recipe
+ */
+
+export class RecipeDto extends AbstractDto {
+    title?: string;
+    amount?: number
+    amountDescription?: string;
+    instructions?: RecipeInstructionStepDto[];
+    ingredientGroups?: RecipeIngredientGroupDto[];
+}