feat(recipe/mapper): creados mappers para ingrediente y paso

src/main/java/com/example/apprecetas/recipe/infrastructure/mapper/IngredientMapper.java

+package com.example.apprecetas.recipe.infrastructure.mapper;
+
+import com.example.apprecetas.recipe.domain.entity.Ingredient;
+import com.example.apprecetas.recipe.infrastructure.repository.mongodb.IngredientDocument;
+import com.example.apprecetas.recipe.infrastructure.repository.mongodb.RecipeDocument;
+import org.mapstruct.Mapper;
+
+@Mapper
+public interface IngredientMapper {
+    IngredientDocument map(Ingredient ingredient);
+}

src/main/java/com/example/apprecetas/recipe/infrastructure/mapper/StepMapper.java

+package com.example.apprecetas.recipe.infrastructure.mapper;
+
+import com.example.apprecetas.recipe.domain.entity.Step;
+import com.example.apprecetas.recipe.infrastructure.repository.mongodb.StepDocument;
+import org.mapstruct.Mapper;
+
+@Mapper
+public interface StepMapper {
+    StepDocument map(Step step);
+}