feat(Repository): Add and implement ReadOrDefaultAsync method.

- add read method can map for each

DigitalData.Core.Abstractions/Infrastructure/IEntityMapper.cs

@@ -14,6 +14,14 @@
         /// <returns>The mapped DTO.</returns>
         TDto Map<TDto>(TEntity entity);
 
+        /// <summary>
+        /// Maps an entity list to a DTO list.
+        /// </summary>
+        /// <typeparam name="TDto">The type of the DTO to map to.</typeparam>
+        /// <param name="entities">The entity list to be mapped.</param>
+        /// <returns>The mapped DTO list.</returns>
+        IEnumerable<TDto> Map<TDto>(IEnumerable<TEntity> entities);
+
         /// <summary>
         /// Maps a DTO to an entity.
         /// </summary>
@@ -22,6 +30,14 @@
         /// <returns>The mapped entity.</returns>
         TEntity Map<TDto>(TDto dto);
 
+        /// <summary>
+        /// Maps a DTO list to an entity list.
+        /// </summary>
+        /// <typeparam name="TDto">The type of the DTO to be mapped.</typeparam>
+        /// <param name="dtos">The DTO list to be mapped.</param>
+        /// <returns>The mapped entity list.</returns>
+        IEnumerable<TEntity> Map<TDto>(IEnumerable<TDto> dtos);
+
         /// <summary>
         /// Maps a DTO to an existing entity.
         /// </summary>