Add tray rules and identities editor

MeetingAssistant/Workflow/WorkflowRulesEditorChatModels.cs

@@ -0,0 +1,23 @@
+namespace MeetingAssistant.Workflow;
+
+public enum WorkflowRulesEditorChatRole
+{
+    User,
+    Agent
+}
+
+public sealed record WorkflowRulesEditorChatMessage(
+    WorkflowRulesEditorChatRole Role,
+    string Content);
+
+public sealed record WorkflowRulesEditorChatResult(
+    string Response,
+    IReadOnlyList<WorkflowRulesEditorChatMessage> Conversation);
+
+public interface IWorkflowRulesEditorChatPipeline
+{
+    Task<WorkflowRulesEditorChatResult> SendAsync(
+        IReadOnlyList<WorkflowRulesEditorChatMessage> conversation,
+        string userMessage,
+        CancellationToken cancellationToken);
+}