sln build fix (again), tests fixes, audit work and doctors work

src/__Libraries/StellaOps.Doctor.Plugins.Integration/IntegrationPlugin.cs

@@ -0,0 +1,45 @@
+using StellaOps.Doctor.Models;
+using StellaOps.Doctor.Plugins;
+using StellaOps.Doctor.Plugins.Integration.Checks;
+
+namespace StellaOps.Doctor.Plugins.Integration;
+
+/// <summary>
+/// Plugin for external integration diagnostics.
+/// </summary>
+public sealed class IntegrationPlugin : IDoctorPlugin
+{
+    /// <inheritdoc />
+    public string PluginId => "stellaops.doctor.integration";
+
+    /// <inheritdoc />
+    public string DisplayName => "External Integrations";
+
+    /// <inheritdoc />
+    public DoctorCategory Category => DoctorCategory.Integration;
+
+    /// <inheritdoc />
+    public Version Version => new(1, 0, 0);
+
+    /// <inheritdoc />
+    public Version MinEngineVersion => new(1, 0, 0);
+
+    /// <inheritdoc />
+    public bool IsAvailable(IServiceProvider services) => true;
+
+    /// <inheritdoc />
+    public IReadOnlyList<IDoctorCheck> GetChecks(DoctorPluginContext context) =>
+    [
+        new OciRegistryCheck(),
+        new ObjectStorageCheck(),
+        new SmtpCheck(),
+        new SlackWebhookCheck(),
+        new TeamsWebhookCheck(),
+        new GitProviderCheck(),
+        new LdapConnectivityCheck(),
+        new OidcProviderCheck()
+    ];
+
+    /// <inheritdoc />
+    public Task InitializeAsync(DoctorPluginContext context, CancellationToken ct) => Task.CompletedTask;
+}