refactor: move search dialog handling to AppOrchestrator

src/EchoHub.Client/AppOrchestrator.cs

@@ -91,6 +91,7 @@ public sealed class AppOrchestrator : IDisposable
         _mainWindow.OnRollbackRequested += HandleRollbackRequested;
         _mainWindow.OnUserProfileRequested += HandleViewProfile;
         _mainWindow.OnChannelJoinRequested += HandleChannelJoinFromMessage;
+        _mainWindow.OnSearchRequested += HandleSearchRequested;
     }
 
     // ── Command Handler Wiring ─────────────────────────────────────────────
@@ -733,6 +734,38 @@ public sealed class AppOrchestrator : IDisposable
         HandleChannelSelected(channelName);
     }
 
+
+    private void HandleSearchRequested()
+    {
+        var result = SearchDialog.Show(_app, _mainWindow.GetChannelNames());
+        if (result is null) return;
+
+        switch (result.Type)
+        {
+            case SearchResultType.Channel:
+                _mainWindow.SwitchToChannel(result.Key);
+                HandleChannelSelected(result.Key);
+                break;
+
+            case SearchResultType.Action:
+                switch (result.Key)
+                {
+                    case "connect": HandleConnect(); break;
+                    case "disconnect": HandleDisconnect(); break;
+                    case "logout": HandleLogout(); break;
+                    case "profile": HandleProfileRequested(); break;
+                    case "status": HandleStatusRequested(); break;
+                    case "create-channel": HandleCreateChannelRequested(); break;
+                    case "delete-channel": HandleDeleteChannelRequested(); break;
+                    case "servers": HandleSavedServersRequested(); break;
+                    case "toggle-users": _mainWindow.ToggleUsersPanel(); break;
+                    case "updates": HandleCheckForUpdatesRequested(); break;
+                    case "quit": _app.RequestStop(); break;
+                }
+                break;
+        }
+    }
+
     private void HandleProfileRequested()
     {
         HandleViewProfile(null);

src/EchoHub.Client/UI/MainWindow.cs

@@ -152,6 +152,11 @@ public sealed partial class MainWindow : Runnable
     /// </summary>
     public event Action<string>? OnChannelJoinRequested;
 
+    /// <summary>
+    /// Fired when the user requests to open the search dialog (via menu or Ctrl+K).
+    /// </summary>
+    public event Action? OnSearchRequested;
+
     public MainWindow(IApplication app, ChatMessageManager messageManager)
     {
         _app = app;
@@ -613,6 +618,11 @@ public sealed partial class MainWindow : Runnable
         }
     }
 
+    private void ShowSearchDialog()
+    {
+        OnSearchRequested?.Invoke();
+    }
+
     private void OnMessagesChanged(string channelName)
     {
         if (channelName == _messageManager.CurrentChannel)
@@ -910,40 +920,6 @@ public sealed partial class MainWindow : Runnable
         SetNeedsDraw();
     }
 
-    /// <summary>
-    /// Open the command-palette search dialog (Ctrl+K) and dispatch the selected result.
-    /// </summary>
-    private void ShowSearchDialog()
-    {
-        var result = Dialogs.SearchDialog.Show(_app, _channelNames.AsReadOnly());
-        if (result is null) return;
-
-        switch (result.Type)
-        {
-            case Dialogs.SearchResultType.Channel:
-                SwitchToChannel(result.Key);
-                OnChannelSelected?.Invoke(result.Key);
-                break;
-
-            case Dialogs.SearchResultType.Action:
-                switch (result.Key)
-                {
-                    case "connect":        OnConnectRequested?.Invoke();        break;
-                    case "disconnect":     OnDisconnectRequested?.Invoke();     break;
-                    case "logout":         OnLogoutRequested?.Invoke();         break;
-                    case "profile":        OnProfileRequested?.Invoke();        break;
-                    case "status":         OnStatusRequested?.Invoke();         break;
-                    case "create-channel": OnCreateChannelRequested?.Invoke();  break;
-                    case "delete-channel": OnDeleteChannelRequested?.Invoke();  break;
-                    case "servers":        OnSavedServersRequested?.Invoke();   break;
-                    case "toggle-users":   ToggleUsersPanel();                  break;
-                    case "updates":        OnCheckForUpdatesRequested?.Invoke(); break;
-                    case "quit":           _app.RequestStop();                  break;
-                }
-                break;
-        }
-    }
-
     /// <summary>
     /// Toggle the online users panel visibility (F2).
     /// </summary>