Added assistant plugins (#659)

app/MindWork AI Studio/Tools/PluginSystem/Assistants/AssistantPluginAuditService.cs

@@ -0,0 +1,32 @@
+using AIStudio.Agents.AssistantAudit;
+
+namespace AIStudio.Tools.PluginSystem.Assistants;
+
+/// <summary>
+/// Runs an assistant security audit and maps the agent result to the persisted audit model.
+/// </summary>
+public sealed class AssistantPluginAuditService(AssistantAuditAgent auditAgent)
+{
+    public async Task<PluginAssistantAudit> RunAuditAsync(PluginAssistants plugin, CancellationToken token = default)
+    {
+        var result = await auditAgent.AuditAsync(plugin, token);
+        var provider = auditAgent.ProviderSettings;
+        var promptPreview = await plugin.BuildAuditPromptPreviewAsync(token);
+
+        return new PluginAssistantAudit
+        {
+            PluginId = plugin.Id,
+            PluginHash = plugin.ComputeAuditHash(),
+            AuditedAtUtc = DateTimeOffset.UtcNow,
+            AuditProviderId = provider.Id,
+            AuditProviderName = provider == Settings.Provider.NONE
+                ? string.Empty
+                : provider.InstanceName,
+            Level = AssistantAuditLevelExtensions.Parse(result.Level),
+            Summary = result.Summary,
+            Confidence = result.Confidence,
+            PromptPreview = promptPreview,
+            Findings = result.Findings,
+        };
+    }
+}