Updated the `IRepository<TEntity>` interface in `IRepository.cs` to include new asynchronous methods for reading, updating, and deleting entities. Added `Read`, `UpdateAsync`, and `DeleteAsync` methods while marking several existing methods as obsolete to encourage the use of the new `Read` method returning `IReadQuery<TEntity>`. Removed previous implementations of `UpdateAsync` and `DeleteAsync` for a more streamlined API.
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