audit, advisories and doctors/setup work

src/Scanner/__Libraries/StellaOps.Scanner.Storage.Oci/ServiceCollectionExtensions.cs

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+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.DependencyInjection.Extensions;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+
+namespace StellaOps.Scanner.Storage.Oci;
+
+public static class ServiceCollectionExtensions
+{
+    public static IServiceCollection AddOciImageInspector(
+        this IServiceCollection services,
+        Action<OciRegistryOptions> configure)
+    {
+        ArgumentNullException.ThrowIfNull(services);
+        ArgumentNullException.ThrowIfNull(configure);
+
+        services.AddOptions<OciRegistryOptions>().Configure(configure);
+        RegisterInspectorServices(services);
+        return services;
+    }
+
+    public static IServiceCollection AddOciImageInspector(
+        this IServiceCollection services,
+        IConfiguration configuration)
+    {
+        ArgumentNullException.ThrowIfNull(services);
+        ArgumentNullException.ThrowIfNull(configuration);
+
+        services.AddOptions<OciRegistryOptions>().Bind(configuration);
+        RegisterInspectorServices(services);
+        return services;
+    }
+
+    private static void RegisterInspectorServices(IServiceCollection services)
+    {
+        services.TryAddSingleton<TimeProvider>(TimeProvider.System);
+
+        services.AddHttpClient(OciImageInspector.HttpClientName)
+            .ConfigurePrimaryHttpMessageHandler(sp =>
+            {
+                var options = sp.GetRequiredService<IOptions<OciRegistryOptions>>().Value;
+                if (!options.AllowInsecure)
+                {
+                    return new HttpClientHandler();
+                }
+
+                return new HttpClientHandler
+                {
+                    ServerCertificateCustomValidationCallback =
+                        HttpClientHandler.DangerousAcceptAnyServerCertificateValidator
+                };
+            });
+
+        services.TryAddSingleton<IOciImageInspector>(sp =>
+        {
+            var options = sp.GetRequiredService<IOptions<OciRegistryOptions>>().Value;
+            return new OciImageInspector(
+                sp.GetRequiredService<IHttpClientFactory>(),
+                options,
+                sp.GetRequiredService<ILogger<OciImageInspector>>(),
+                sp.GetRequiredService<TimeProvider>());
+        });
+    }
+}