refactor(repository): reorganize IRepository extensions and add missing overloads

- Added regions for Create, Update, and Delete for better structure
- Introduced `Where` extension for IRepository
- Added batch `CreateAsync` overloads for entities and DTOs
- Improved readability and consistency across IRepository extension methods

DigitalData.Core.Abstraction.Application/Repository/Extensions.cs

@@ -21,22 +21,36 @@ public static class Extensions
     #region IRepository
     public static IQueryable<TEntity> Get<TEntity>(this IRepository repository) => repository.Entity<TEntity>().Get();
 
+    public static IQueryable<TEntity> Where<TEntity>(this IRepository repository) => repository.Entity<TEntity>().Where();
+
+    #region Create
     public static Task<TEntity> CreateAsync<TEntity>(this IRepository repository, TEntity entity, CancellationToken cancel = default) 
         => repository.Entity<TEntity>().CreateAsync(entity, cancel);
 
     public static Task<TEntity> CreateAsync<TEntity, TDto>(this IRepository repository, TDto dto, CancellationToken cancel = default)
         => repository.Entity<TEntity>().CreateAsync(dto, cancel);
 
+    public static Task<IEnumerable<TEntity>> CreateAsync<TEntity>(this IRepository repository, IEnumerable<TEntity> entities, CancellationToken cancel = default)
+        => repository.Entity<TEntity>().CreateAsync(entities, cancel);
+
+    public static Task<IEnumerable<TEntity>> CreateAsync<TEntity, TDto>(this IRepository repository, IEnumerable<TDto> dtos, CancellationToken cancel = default)
+        => repository.Entity<TEntity>().CreateAsync(dtos, cancel);
+    #endregion Create
+
+    #region Update
     public static Task UpdateAsync<TEntity, TDto>(this IRepository repository, TDto dto, Expression<Func<TEntity, bool>> expression, CancellationToken cancel = default)
         => repository.Entity<TEntity>().UpdateAsync(dto, expression, cancel);
 
     public static Task UpdateAsync<TEntity, TDto>(this IRepository repository, TDto dto, Func<IQueryable<TEntity>, IQueryable<TEntity>> query, CancellationToken cancel = default)
         => repository.Entity<TEntity>().UpdateAsync(dto, query, cancel);
+    #endregion
 
+    #region Delete
     public static Task DeleteAsync<TEntity>(this IRepository repository, Expression<Func<TEntity, bool>> expression, CancellationToken cancel = default)
         => repository.Entity<TEntity>().DeleteAsync(expression, cancel);
 
     public static Task DeleteAsync<TEntity>(this IRepository repository, Func<IQueryable<TEntity>, IQueryable<TEntity>> query, CancellationToken cancel = default)
         => repository.Entity<TEntity>().DeleteAsync(query, cancel);
     #endregion
-}
+    #endregion
+}