Refactor repository pattern and dependency injection

This commit introduces a new `DbRepository` class implementing the `IRepository<TEntity>` interface, providing asynchronous methods for CRUD operations. The previous CRUD repository registration in `DIExtensions.cs` has been removed, indicating a shift in repository management. A new static class `DependencyInjection` has been added to facilitate the registration of `DbRepository` with the service collection, enhancing modularity and flexibility in database interactions.

DigitalData.Core.Infrastructure/DependencyInjection.cs

@@ -0,0 +1,17 @@
+using DigitalData.Core.Abstractions.Infrastructure;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace DigitalData.Core.Infrastructure;
+
+public static class DependencyInjection
+{
+    public static IServiceCollection AddDbRepository<TDbContext, TEntity>(this IServiceCollection services, Func<TDbContext, DbSet<TEntity>> queryFactory)
+        where TDbContext : DbContext
+        where TEntity : DbContext
+    {
+        return services
+            .AddScoped<IRepository<TEntity>, DbRepository<TDbContext, TEntity>>()
+            .AddSingleton(queryFactory);
+    }
+}