feat: add core persistence model

Tiku.Infrastructure/DependencyInjection.cs

@@ -0,0 +1,26 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+using Npgsql;
+using Tiku.Infrastructure.Persistence;
+
+namespace Tiku.Infrastructure;
+
+public static class DependencyInjection
+{
+    public static IServiceCollection AddInfrastructure(
+        this IServiceCollection services,
+        string connectionString)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(connectionString);
+
+        services.AddSingleton(_ => NpgsqlDataSource.Create(connectionString));
+        services.AddDbContextPool<TikuDbContext>((serviceProvider, options) =>
+        {
+            var dataSource = serviceProvider.GetRequiredService<NpgsqlDataSource>();
+            options.UseNpgsql(dataSource, npgsql =>
+                npgsql.MigrationsAssembly(typeof(TikuDbContext).Assembly.FullName));
+        });
+
+        return services;
+    }
+}